Abstract The influence of occupant behaviour in buildings is widely discussed as one of the causes for the gap between energy use estimated via computer simulation and during building operation. Knowing the main drivers for adjustments in building systems is essential to guide the development of mathematical models for such behaviours. The aim of this study is to evaluate the main motivating agents for adjusting windows, luminaires, and air-conditioning in offices. Two offices were monitored using sensors that collected data from the internal environment and user interaction with such systems. Rainfall and external and internal air temperatures were considered influential for the interaction with window systems. The increase in internal and external temperatures had even more influence on interactions with air-conditioners. The main conclusions were: there is influence of the layout of the offices in the sharing and control of windows and efficiency of passive strategies, such as the use of natural and cross ventilation; and there is an influence of the increase in internal temperature compared to external temperature in the predictability of opening windows and turning air-conditioning devices on. operation behaviours luminaires airconditioning conditioning airconditioners. airconditioners conditioners. conditioners air-conditioners strategies ventilation

Resumo Ainfluência do comportamento dos usuários em edificações é amplamente discutida como uma das causas para discrepâncias entre consumos energéticos esperados, durante a fase de projeto, e consumos durante a operação. Conhecer os principais motivadores para ajustes nos sistemas de edificações é imprescindível para aprimorar a modelagem desses comportamentos. O objetivo deste estudo é avaliar os principais agentes motivadores para o ajuste das janelas, luminárias e aparelhos de ar-condicionado em escritórios. Dois escritórios foram monitorados por meio de sensores que coletaram dados de qualidade do ambiente interno e comportamento de usuário. Foram consideradas influentes para a interação com sistemas de janelas a pluviometria e as temperaturas do ar externo e interno. O aumento das temperaturas interna e externa apresentou ainda mais influência na interaçãocom aparelhos de ar-condicionado. Duas foram as principais conclusões: há influência do layout dos escritórios no compartilhamento e controle das janelas e eficiência de estratégias passivas, como o uso de ventilação natural e cruzada; e há influência do aumento da temperatura interna em comparação à externa na previsibilidade de abertura de janelas e acionamento de aparelhos de ar-condicionado. esperados projeto operação comportamentos arcondicionado condicionado usuário arcondicionado. condicionado. conclusões passivas cruzada

Abstract The way residents occupy and operate houses influences the energy consumption. The objective of this paper is to findpatterns of occupant behaviour in actual data for thermal performance simulation.Data on occupancy of rooms and operation of doors and windows were obtained through a database created by means of application of questionnaires in low-income houses located in Florianópolis, southern Brazil. The reference profiles were obtained using cluster analysis, hierarchical and non-hierarchical techniques combined. Such profiles were submitted to computer simulations. The results showed significant variability within the clusters regarding the occupancy and operation of doors and windows. It was possible to verify the impact that different profiles have on the performance of the house, either due to occupancy or heat losses and gains from air changes through doors and windows. The combination of these effects resulted in some profiles that were highly vulnerable to external temperature conditions, while others were able to maintain the internal temperatures more constant. It was possible to verify that the use of reference profiles based on actual data lead to more reliable performance indicators. consumption simulationData simulation Data lowincome low income Florianópolis Brazil analysis nonhierarchical non combined simulations house conditions constant indicators

Resumo A forma como os moradores ocupam e operam as casas influencia o consumo de energia. O objetivo deste trabalho é encontrar padrões de comportamento dos moradores em dados reais para fins de simulação do desempenho térmico. Dados sobre ocupação de cômodos e funcionamento de portas e janelas foram obtidos por meio de um banco de dados criado por meio da aplicação de questionários em habitações de interesse social localizadas em Florianópolis. Os perfis de referência foram obtidos por meio de análise de agrupamento, com técnicas hierárquicas e não hierárquicas combinadas. Tais perfis foram submetidos a simulações computacionais. Os resultados mostraram variabilidade significativa entre os grupos quanto à ocupação e operação de portas e janelas. Foi possível verificar o impacto que diferentes perfis têm no desempenho da casa, seja pela ocupação ou pelas perdas de calor e ganhos com as trocas de ar através de portas e janelas. A combinação desses efeitos resultou em alguns perfis altamente vulneráveis às condições de temperatura externa, enquanto outros foram capazes de manter as temperaturas internas mais constantes. Foi possível verificar que a utilização de perfis de referência baseados em dados reais leva a indicadores de desempenho mais confiáveis. energia térmico Florianópolis agrupamento combinadas computacionais casa externa constantes confiáveis

Abstract Hygrothermal computer simulations consider transient and simultaneous exchanges of heat and moisture between the building elements and the environment. They are an important tool to support the design and performance assessment of buildings. These simulations require the description of the building element, the environmental conditions to which it is exposed, and the hygrothermal characteristics of the materials that compose it as input data. This paper presents an exploratory analysis of the results of the hygrothermal simulation of a concrete wall varying the hygrothermal characteristics of the material. The internal environmental conditions were obtained using EnergyPlus ® and the hygrothermal simulation was done in WUFI ® Pro, with post-processing in WUFI ® Bio to evaluate the risk of mold occurrence. The hygrothermal behavior of the walls varied significantly with the variation in hygrothermal characteristics of the materials, especially for one type of concrete that had a very different capillary transport function. The results indicate the importance of analyzing hygrothermal characteristics and functions for hygrothermal simulations and the need to experimentally determine such characteristics for Brazilian building materials. environment buildings element exposed data material Pro postprocessing post processing occurrence function

Resumo Simulações computacionais higrotérmicas consideram trocas transientes e simultâneas de calor e umidade entre os elementos construtivos e o ambiente, sendo uma ferramenta importante de apoio ao projeto e à avaliação de desempenho de edifícios. Essas simulações requerem como dados de entrada a descrição do elemento construtivo, as condições ambientais às quais ele está exposto e as características higrotérmicas dos materiais. Este artigo apresenta uma análise exploratória dos resultados da simulação higrotérmica de uma parede de concreto variando-se as características higrotérmicas do material. As condições ambientais internas foram obtidas utilizando o EnergyPlus™ e a simulação higrotérmica foi feita no WUFI® Pro, com pós-processamento no WUFI® Bio para avaliar o risco de ocorrência de fungos emboloradores. Houve diferenças significativas no comportamento higrotérmico das paredes em função da variação das características higrotérmicas dos materiais, sobretudo para o tipo de concreto cuja função de transporte capilar mostrou-se diferente dos demais. Os resultados indicam a importância de analisar as características e funções higrotérmicas para simulações higrotérmicas e a necessidade de sua determinação experimental para os materiais de construção brasileiros. ambiente edifícios construtivo variandose variando se material EnergyPlus WUFI Pro pósprocessamento pós processamento emboloradores mostrouse mostrou demais brasileiros

Abstract Solar Heat Gain Coefficient (SHGC) is a thermal property of glass and transparent elements, defined as the ratio between the amount of solar energy that passes through the glass and the amount of solar energy that reaches it. SHGC can be determined using mathematical models, computer simulations, or field and laboratory measurements. This paper compares the methods for obtaining the SHGC, which include laboratory measurements using a portable calorimeter, computer simulation using the WINDOW software and calculated according to ISO 9050 standard. Two solar control glasses and one clear glass, used as a reference, were selected. The SHGCs obtained using laboratory measurements were lower than those obtained using the other methods due to the solar simulator and equipment limitations. Despite this, there was a good approximation of the behaviour of the glasses regarding the increase in air velocity. The heat transfer coefficient on the exterior surface was fixed, so the SHGC obtained for each glass based on ISO 9050 remains the same, regardless of the air velocity. The SHGC results based on ISO 9050 were similar to those measured by means of a portable calorimeter under conditions of higher air velocities. (SHGC elements it models simulations 905 standard reference selected limitations this velocity fixed same velocities 90 9

Resumo O fator solar é uma propriedade térmica de vidros e elementos transparentes, definida como a razão entre a quantidade de energia solar que atravessa o vidro e a quantidade de energia solar que nele incide. O fator solar pode ser determinado por meio de modelos de cálculo, simulações computacionais ou medições em campo ou laboratório. Este artigo compara métodos de obtenção do fator solar, que incluem medições em laboratório com um calorímetro portátil, simulação computacional no software WINDOW e cálculo conforme procedimentos da norma ISO 9050. Foram selecionados dois vidros de controle solar e um vidro comum como referência. Devido a limitações do simulador solar e do equipamento, os valores de fator solar obtidos nas medições em laboratório foram menores que os calculados pelos outros dois métodos. Apesar disso, houve boa aproximação do comportamento dos vidros quanto ao aumento da velocidade do ar. Os valores calculados por meio da ISO 9050 permaneceram iguais para cada tipo de vidro, independentemente da velocidade do ar, devido ao coeficiente de transferência de calor superficial externo ser fixo. Os valores de fator solar calculados pela norma apresentaram maior proximidade com os valores medidos pelo calorímetro portátil em condições de velocidades do ar mais elevadas. transparentes incide referência equipamento disso 905 fixo elevadas 90 9

The present work reports on the isolation and characterisation of two novel antiviral ester compounds from dichloromethane leaf extracts of Spondias mombin (SM). The characterisation and structural elucidation were established from spectroscopic evidence of nuclear magnetic resonance, Fourier transform infrared and mass spectroscopy. The compounds identified were 6-methylheptyl pentadecanoate and 6-methylheptyl-15-(1,2,3,4,4a,8a-hexahydronaphthalen-1-yl)pentadecanoate. The novel isolated ester compounds were reported to have anti-rhino virus activity in silico against a known biological target (HsNMT1) that plays a key role in developing therapeutics against the common cold. Molecular docking analysis revealed the binding affinity across all targets within the range of -4.6 to -8.2 kcal/mol, whilst molecular dynamic simulation showed that systems attained good stability due to the maintenance of mean root-mean-square deviation values within the acceptable range of 1.5-2.5 Å. It can be concluded that the novel compounds are potential inhibitory candidates against rhinovirus protein target HsNMT1. However, in vitro and in vivo experiments are further required to validate the possible inhibitory candidates against rhinovirus disease (common cold). SIGNIFICANCE: The significance of this study contributes to the scientific rationale for using SM leaf extracts to treat viral diseases. Two novel compounds, 6-methylheptyl pentadecanoate and 6-methylheptyl-15-(1,2,3,4,4a,8a-hexahydronaphthalen-1-yl)pentadecanoate, were predicted through computer-aided techniques to possess anti-rhinovirus properties.

Resumo Este artigo busca argumentar sobre as contribuições da área de conhecimento e produção de Arte Computacional para o desenvolvimento de projetos de arquitetura residencial. O objetivo é identificar estratégias criativas de design capazes de contribuir com a especulação espacial. Dentre as contribuições possíveis, dá-se ênfase a estrutura de dueto e a qualidade contingente presente em parte da produção de Arte Computacional com foco em interatividade. Metodologicamente, a teoria foi corroborada por revisão de literatura, e apresentação de duas aplicações em estado inicial de desenvolvimento, pensadas para auxiliar nas etapas iniciais de projetos de residências. As aplicações possuem algoritmos de Inteligência artificial que participam ativamente na geração de possibilidades, e o arquiteto interage com esses sistemas via participação ativa e reativa. O resultado do dueto possui influência computacional e agenciamento humano. Dessa estrutura de trabalho, observa-se um possível aumento na criatividade do arquiteto, já que esses programas o incentivam a pensar, numa relação de parceria, como aconteceria em um dueto entre arquitetos.

Abstract This article seeks to argue about the contributions of the area of knowledge and production of Computational Art to the development of residential architecture projects. The goal is to identify creative design strategies capable of contributing to spatial speculation. Among the possible contributions, emphasis is placed on the duet structure and the contingent quality present in part of the Computational Art production, with a focus on interactivity. Methodologically, the theory was corroborated by a literature review, and presentation of two applications in the initial stage of development, designed to assist in the initial stages of residential projects. The applications have Artificial Intelligence algorithms that actively participate in generating possibilities, and the architect interacts with these systems via active and reactive participation. The result of the duet has computational influence and human agency. From this work structure, a possible increase in the architect's creativity can be observed, as these programs encourage him to think, in a partnership relationship, as would happen in a duet between architects.

Abstract: This research presents a novel trajectory generation algorithm and the design of a prescribed time controller for trajectory tracking tasks for autonomous vehicles. The trajectory generation algorithm uses a hybrid combination of computer vision techniques and intelligent rail detection methods using an on-board camera. Based on the previous information, a possible trajectory is then generated that the vehicle should follow. A time-prescribed controller is then developed and implemented to track the trajectory generated by the proposed methodology. The controller uses a hybrid structure in which a time-varying feedback controller transitions into a fixed-time controller. This approach achieves stabilization in the prescribed time despite the initial conditions. To address the trajectory design, a scaled autonomous vehicle simulator was used to then evaluate the prescribed time controller compared to a finite time controller and a dynamic feedback controller. The simulation results demonstrate the effectiveness of trajectory generation and trajectory tracking control algorithms in addressing these challenges in real-world scenarios by examining two situations: unperturbed and perturbed cases.

RESUMEN Introducción: La modelación de los flujos de pacientes se considera una herramienta clave para el análisis y mejora de las trayectorias intrahospitalarias. Objetivo: Desarrollar y validar, en un servicio de cirugía general, un modelo matemático para la gestión de flujos de pacientes en servicios hospitalarios. Métodos: Se desarrolló una investigación de tipo cuantitativa descriptiva. Se analizaron diferentes modelos de gestión y se identificaron brechas a solventar. Para su concepción se diseñó un procedimiento metodológico que tiene en cuenta la agrupación de pacientes en categorías diagnósticas mayores, en función de características clínicas homogéneas y similar consumo de recursos. Resultados: Se identificó como problema principal la insuficiente gestión de los flujos de pacientes. Se construyó un modelo matemático de simulación discreta que se validó mediante la comparación de datos reales del servicio y las opiniones subjetivas de especialistas. Se identificó que los recursos limitantes del sistema son las enfermeras y las camas con porcentajes de utilización de 93,377 % y 89,265 % respectivamente. Conclusiones: Se desarrolla un modelo para la gestión de los flujos de pacientes en el servicio de cirugía general y se demuestra su influencia en el análisis, el proceso de toma de decisiones y la mejora de la gestión.

ABSTRACT Introduction: Patient flow modeling is considered a key tool for the analysis and improvement of in-hospital trajectories. Objective: To develop and validate a mathematical model for the patient flows management in hospital in a General Surgery service. Methods: A descriptive quantitative research was developed. Different management models were analyzed and gaps to be solved were identified. For its conception, a methodological procedure was designed that takes into account the grouping of patients in Major Diagnostic Categories according to homogeneous clinical characteristics and similar resource consumption. Results: Insufficient patient flow management was identified as the main problem. A mathematical model of discrete simulation was built and validated by comparing real data from the service and the subjective opinions of specialists. It was identified that the limiting resources of the system are nurses and beds with utilization percentages of 93.377% and 89.265% respectively. Conclusions: A model for the patient flows management in the General Surgery service is developed and its influence on the analysis, decision-making process and management improvement is demonstrated.

ABSTRACT Purpose: To assess the effect of the coronavirus disease 2019 (COVID-19) pandemic on cataract surgery by residents who had mandatory surgical simulator training during residency. Methods: In this retrospective, observational analytical study, the total number of cataract surgeries and surgical complications by all senior residents of 2019 (2019 class; prepandemic) and 2020 (2020 class; affected by the reduced number of elective surgeries due to the COVID-19 pandemic) were collected and compared. All residents had routine mandatory cataract surgery training on a virtual surgical simulator during residency. The total score obtained by these residents on cataract challenges of the surgical simulator was also evaluated. Results: The 2020 and 2019 classes performed 1275 and 2561 cataract surgeries, respectively. This revealed a reduction of 50.2% in the total number of procedures performed by the 2020 class because of the pandemic. The incidence of surgical complications was not statistically different between the two groups (4.2% in the 2019 class and 4.9% in the 2020 class; p=0.314). Both groups also did not differ in their mean scores on the simulator’s cataract challenges (p<0.696). Conclusion: Despite the reduction of 50.2% in the total number of cataract surgeries performed by senior residents of 2020 during the COVID-19 pandemic, the incidence of surgical complications did not increase. This suggests that surgical simulator training during residency mitigated the negative effects of the reduced surgical volume during the pandemic. Purpose 201 COVID19 COVID 19 (COVID-19 Methods retrospective study (201 prepandemic 202 (202 COVID-1 compared evaluated Results 127 256 respectively 502 50 2 50.2 4.2% 42 4 (4.2 49 9 4.9 p=0.314. p0314 p p=0.314 . 0 314 p=0.314) simulators s p<0.696. p0696 p<0.696 696 (p<0.696) Conclusion increase 20 COVID1 1 (COVID-1 (20 COVID- 12 25 5 50. 4.2 (4. 4. p031 p=0.31 31 p069 p<0.69 69 (p<0.696 (COVID- (2 (4 p03 p=0.3 3 p06 p<0.6 6 (p<0.69 (COVID ( p0 p=0. p<0. (p<0.6 p=0 p<0 (p<0. p= p< (p<0 (p< (p

In this work, we introduce the Electric Motor simulator, an application from the SimuFísica® platform designed for classroom use. We briefly describe the technologies behind the application, the equations governing its operation, some studies showing the dynamics of the electric motor, and finally, the use of the application in Secondary and Higher Education. work simulator SimuFísica operation motor finally Education

Apresentamos neste trabalho o simulador Motor elétrico, um aplicativo da plataforma SimuFísica® voltado para uso em sala de aula. Descrevemos brevemente as tecnologias por trás do aplicativo, as equações que regem o seu funcionamento, alguns estudos mostrando a dinâmica do motor elétrico e, por fim, o uso do aplicativo nos ensinos Médio e Superior. SimuFísica aula funcionamento fim Superior

ABSTRACT Understanding of various aerodynamic factors involved in flight trajectories is fundamental to design launch vehicles. First and foremost, computer simulation is an efficient way of predicting its behavior in the movement across the atmosphere. Considering that the available Brazilian version of Analysis, Simulation and Trajectory Optimization Software for Space Applications (Astos) does not simulate a controlled vehicle in six degrees of freedom (DoF), the aim of this article is to complement the Astos outcomes, particularly evaluating the trajectory of a controlled launch vehicle from liftoff to orbit injection, considering the model of rigid body dynamics with a six DoF. This approach carried out with an in-house developed simulator called Scott that simulated a multistage launcher with three flight configurations. In the Scott computer program, a launcher was modeled with differential equations in six DoF, coupled axes attitude control system, and aerodynamic coefficients that changed as a function of Mach number. These features improved the results generated by Astos software for the same configurations and the same initial conditions. Additionally, the results provided by Scott were close to actual vehicle in terms of attitude change and Mach number reached. vehicles foremost atmosphere Analysis (Astos DoF , (DoF) outcomes injection inhouse house program system conditions Additionally reached (DoF

This review aims to provide a comprehensive evaluation of the dynamics of the double pendulum, with a particular emphasis on its chaotic behavior. It examines the complicated and unpredictable behavior of the double pendulum. It highlights the pedagogical value of the double pendulum as it bridges concepts across physics, mathematics, and computer science, providing a tangible demonstration of chaotic dynamics. Numerical methods, such as the 4th-order Runge-Kutta method, estimate solutions to the autonomous Hamiltonian equations that govern a system. We simulate the motion of a double pendulum, enabling the visualization of intricate trajectories and the analysis of emerging patterns with the Python and Fortran programming languages. We discuss the importance of Poincaré’s maps and the Lyapunov exponents in characterizing and quantifying the rate at which trajectories diverge in phase space to elucidate the chaotic nature of the system. The educational significance of the double pendulum is emphasized in teaching key concepts in Classical Mechanics, Differential Calculus, Linear Algebra, and Numerical Methods for solving ordinary differential equations (ODEs). We also explore the interdisciplinary teaching opportunities presented by the double pendulum. physics mathematics science methods 4thorder thorder 4th order th RungeKutta Runge Kutta method system languages Poincarés Poincaré s Mechanics Calculus Algebra ODEs. ODEs . (ODEs) (ODEs

ABSTRACT Purpose: To assess the effect of the Coronavirus disease 2019 (COVID-19) pandemic on cataract surgery by residents who had mandatory surgical simulator training during residency. Methods: In this retrospective, observational analytical study, the total number of cataract surgeries and surgical complications by all senior residents of 2019 (2019 class; prepandemic) and 2020 (2020 class; affected by the reduced number of elective surgeries due to the COVID-19 pandemic) were collected and compared. All residents had routine mandatory cataract surgery training on a virtual surgical simulator during residency. The total score obtained by these residents on cataract challenges of the surgical simulator was also evaluated. Results: The 2020 and 2019 classes performed 1275 and 2561 cataract surgeries, respectively. This revealed a reduction of 50.2% in the total number of procedures performed by the 2020 class because of the pandemic. The incidence of surgical complications was not statistically different between the two groups (4.2% in the 2019 class and 4.9% in the 2020 class; p=0.314). Both groups also did not differ in their mean scores on the simulator’s cataract challenges (p<0.696). Conclusion: Despite the reduction of 50.2% in the total number of cataract surgeries performed by senior residents of 2020 during the COVID-19 pandemic, the incidence of surgical complications did not increase. This suggests that surgical simulator training during residency mitigated the negative effects of the reduced surgical volume during the pandemic. Purpose 201 COVID19 COVID 19 (COVID-19 Methods retrospective study (201 prepandemic 202 (202 COVID-1 compared evaluated Results 127 256 respectively 502 50 2 50.2 4.2% 42 4 (4.2 49 9 4.9 p=0.314. p0314 p p=0.314 . 0 314 p=0.314) simulators s p<0.696. p0696 p<0.696 696 (p<0.696) Conclusion increase 20 COVID1 1 (COVID-1 (20 COVID- 12 25 5 50. 4.2 (4. 4. p031 p=0.31 31 p069 p<0.69 69 (p<0.696 (COVID- (2 (4 p03 p=0.3 3 p06 p<0.6 6 (p<0.69 (COVID ( p0 p=0. p<0. (p<0.6 p=0 p<0 (p<0. p= p< (p<0 (p< (p

The present work has as goal to present an overview on the recent literature related to Physics Teaching involving the use of computational simulations. Works from the Revista Brasileira de Ensino de Física (RBEF) and Caderno Brasileiro de Ensino de Física (CBEF) were selected, which show the potentialities and challenges that the use of computational simulations presents for Physics Teaching. As potentialities, the works highlight that simulations: expand the power of observation and understanding of the phenomenon being worked on, present the content in a more interesting way for students, bring greater interaction in the classroom, lead to a better visualization of abstract concepts and that the student becomes an active agent in the classroom. The possible challenges that were cited are: difficulty in the process of modeling the phenomenon, lack of further research in the area, the need for educators to be able to show the limitations that the model presents, the need for schools to be equipped with computers and the internet, which educators need of a preparation to learn to work both with modeling and with the simulation software itself. RBEF (RBEF CBEF (CBEF selected students classroom are area internet itself

O presente trabalho tem como objetivo apresentar um panorama geral das publicações na área de Ensino de Física que envolvem o uso de simulações computacionais. Foram selecionados trabalhos da Revista Brasileira de Ensino de Física (RBEF) e do Caderno Brasileiro de Ensino de Física (CBEF), os quais mostram as potencialidades e desafios que o uso de simulações computacionais apresenta para o Ensino de Física. Como potencialidades os trabalhos destacam que as simulações: ampliam o poder de observação e compreensão do fenômeno que está sendo trabalhado, apresentam o conteúdo de forma mais interessante para os educandos, trazem maior interação em sala de aula, levam a uma melhor visualização de conceitos abstratos e que educando se torna agente ativo em sala de aula. Os possíveis desafios elencados foram: dificuldade do processo de modelagem do fenômeno, falta de pesquisa na área, dificuldade do educador em conseguir mostrar as limitações que o modelo apresenta, necessidade das escolas estar equipadas com computadores e internet e falta de formação para o educador aprender a trabalhar tanto como modelagem, tanto com o próprio software de simulação. RBEF (RBEF CBEF, CBEF , (CBEF) trabalhado educandos aula foram simulação (CBEF

Abstract The use of computational simulation techniques is an important tool for the coffee harvesting issues, particularly the finite element method. The method is widely used in the structural analysis of agricultural machinery, as well as in the analysis of the stresses and vibrations of coffee branches and peduncles during the harvesting process. The present study aimed to develop three-dimensional finite element models of the plagiotropic branches of the Catuaí Vermelho variety of Arabica coffee in different positions along the orthotropic branches of the plant; considering high-fidelity models. Additionally, by considering the branches’ experimental properties (physical-mechanical), the natural frequencies and vibration modes of the branches were determined by means of computer simulations. First, the geometric properties of the coffee branches were obtained by means of two images taken using a professional camera to obtain the input data of the virtual simulation. For the mechanical properties, it was used a semi-analytical digital scale, to obtain the mass of the specimens. The modulus of elasticity was determined using a universal testing machine. The variability in the simulated natural frequencies could be identified, which was on the order of 30% for the first frequency, regardless of the position of the branch in the plant. These values were lower for the other frequencies. Linear regression fits showed a coefficient of determination, and correlation tests were used to verify the relationship between the values obtained numerically and experimentally, which were validated by using experimental data using the modal analysis techniques. issues machinery process threedimensional three dimensional plant highfidelity high fidelity Additionally physicalmechanical, physicalmechanical physical , (physical-mechanical) simulations First semianalytical semi analytical scale specimens machine identified 30 frequency determination experimentally (physical-mechanical 3