16 papers · ranked by Valyu relevance
Junxian Chen, Jianhai Zhang, Hongwei Zhao, Ana González-Marcos
Stress uniformity within the gauge zone of a cruciform specimen significantly affects materials’ in-plane biaxial mechanical properties in material testing. The stress uniformity depends on the load transmission of the cruciform specimen from the fixtures to the gauge zone. Previous studies failed to alter the nature…
Zhizhou Zhang, Chungwei Lin, Bingnan Wang
The rapid growth of artificial intelligence is revolutionizing classical engineering society, offering novel approaches to material and structural design and analysis. Among various scientific machine learning techniques, physics-informed neural network (PINN) has been one of the most researched subjects, for its…
Necmettin Kaya
The objective of this study is to design rubber bushing at desired level of stiffness characteristics in order to achieve the ride quality of the vehicle. A differential evolution algorithm based approach is developed to optimize the rubber bushing through integrating a finite element code running in batch mode to…
Daniel Schiwietz, Marian Hörsting, Eva Maria Weig, Matthias Wenzel + 1 more
'Peter Degenfeld-Schonburg'] Micro- and nanoelectromechanical system (MEMS and NEMS) resonators can exhibit rich nonlinear dynamics as they are often operated at large amplitudes with high quality factors and possess a high mode density with a variety of nonlinear modal couplings. Their impact is strongly influenced by…
Han Zhao, David Kamensky, John T. Hwang, Jiun-Shyan Chen
Isogeometric analysis (IGA) has emerged as a promising approach in the field of structural optimization, benefiting from the seamless integration between the computer-aided design (CAD) geometry and the analysis model by employing non-uniform rational B-splines (NURBS) as basis functions. However, structural…
Beom-Soo Kim, Hyun-Woo Han, Woo-Jin Chung, Young-Jun Park
In this study, gearbox radiated noise was successfully reduced through housing shape optimization. First, dynamic and structural-acoustic coupled analysis models of an agricultural UTV gearbox were developed. Then, the test equipment was configured to match that of the simulation model, and a test was conducted. The…
M. J. Wood, T. C. S. Rendall, C. B. Allen, L. J. Kedward + 3 more
'N. J. Taylor' 'J. Fincham' 'N. E. Leppard'] A novel geometry parameterisation method constructed from a volume-of-solid driven cellular automata is presented. The method is capable of describing complex geometry of arbitrary topology using a set of volume-of-solid parameters applied to a geometry control mesh. This is…
Shangjie Ge-Zhang, Xiaoli Chen, Haotong Zhu, Yuan Song + 3 more
'Jingang Cui' 'Łukasz Klapiszewski'] PET bottlesare often used as airtight containers for filling carbonated drinks. Because carbonated drinks contain large volumes of CO2 gas, the container needs to bear a tremendous pressure from the inside of the bottle.If the stress exceeds the bearing limit, the material will show…
Gang Xu, Xifeng Liang, Shuanbao Yao, Dawei Chen + 2 more
'Wen-Bo Du'] Minimizing the aerodynamic drag and the lift of the train coach remains a key issue for high-speed trains. With the development of computing technology and computational fluid dynamics (CFD) in the engineering field, CFD has been successfully applied to the design process of high-speed trains. However…
Reinier Giele, Can Ayas, Matthijs Langelaar
A novel feature mapping topology optimization method is presented, allowing for the creation of features with highly flexible shapes. The method easily integrates with conventional density-based formulations. Feature shapes are implicitly described by NURBS control points. The feature shape dictates the locations of…
P. Gangl, M. H. Gfrerer
We introduce a unified sensitivity concept for shape and topological perturbations and perform the sensitivity analysis for a discretized PDE-constrained design optimization problem in two space dimensions. We assume that the design is represented by a piecewise linear and globally continuous level set function on a…
Jolanta Dzwierzynska, Carlos López-Colina
The successful and effective shaping of curvilinear steel bar structures is becoming an increasingly complex and difficult task, due to the growing demands to satisfy both economic and environmental requirements. However, computer software for algorithmic-aided design makes it possible to take into account many aspects…
Jolanta Dzwierzynska, Patrycja Lechwar, Lihong Su, Xing Zhao + 2 more
'Peitang Wei' 'Hui Wang'] Rationalization in structural design in the field of steel structures mostly consists inreducing structural material. The aim of this work was to develop an algorithmic-aided, original and practical approach to shaping curvilinear steel bar structures of modular roofs, enabling their…
Amabel García-Dominguez, Juan Claver, Miguel A. Sebastián
The use of current computer tools in both manufacturing and design stages breaks with the traditional conception of productive process, including successive stages of projection, representation, and manufacturing. Designs can be programmed as problems to be solved by using computational tools based on complex…
Frantisek Sedlacek, Tomas Kalina, Martin Stepanek, Grzegorz Królczyk
This paper presents a novel design methodology that validates and utilizes the results of topology optimization as the final product shape. The proposed methodology aims to streamline the design process by eliminating the need for remodeling and minimizing printing errors through process simulation. It also eliminates…
James T. Todd, Alexander A. Petrov
Shape is an interesting property of objects because it is used in ordinary discourse in ways that seem to have little connection to how it is typically defined in mathematics. The present article describes how the concept of shape can be grounded within Euclidean and non-Euclidean geometry and also to human perception.…