Article
Computer Science, Interdisciplinary Applications
Han Zhou, Jihong Zhu, Chuang Wang, Yifei Zhang, Jiaqi Wang, Weihong Zhang
Summary: Introduces a concurrent optimization framework based on multiscale finite element method, for optimizing hierarchical structures with parameterized lattice. This framework eliminates the assumption of scale separation and achieves a balance between performance and computational cost through offline and online stages.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2022)
Article
Engineering, Mechanical
Fengxiang Xu, Junyao Wang, Lin Hua
Summary: This paper proposes a biomimetic optimization design for the stiffeners layout of automotive inner door panels based on vein unit of dragonfly wing. By applying the structural features of dragonfly veins to the design, the resistance to deformation and vibration of the doors is enhanced, while reducing the mass.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Multidisciplinary
Meizhi Qian, Xindi Hu, Shengfeng Zhu
Summary: This paper introduces a phase field method based on multi-level correction for eigenfrequency topology optimization. The proposed method performs a multi-step correction in a sequence of finite element spaces and maintains accuracy of the eigenpair approximation. The optimization algorithm based on a multi-level correction solver improves the efficiency of the traditional phase field method.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2022)
Article
Computer Science, Interdisciplinary Applications
Xindi Hu, Meizhi Qian, Shengfeng Zhu
Summary: This paper proposes a simple yet efficient linearization approach for topology optimization of eigenvalue problems. The method is applied to vibrating structures and photonic crystals, and numerical evidence suggests first-order accuracy of approximate eigenvalues and eigenfunctions. The algorithm demonstrates effectiveness and efficiency in various numerical examples.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2023)
Article
Engineering, Multidisciplinary
Yingjun Wang, Wei Zheng, Yongfeng Zheng, Daicong Da
Summary: This paper introduces an adaptive three level mesh method (ATMM) for structural topology optimization, aiming to reduce computational costs while maintaining accuracy. The ATMM divides elements into different levels and applies merging and dividing processes based on element status. The paper also proposes new schemes for nodal numbering and sensitivity filter to handle the incompatibility of adjacent elements in different levels.
APPLIED MATHEMATICAL MODELLING
(2022)
Article
Engineering, Aerospace
Keyu Li, Chao Yang, Xiaozhe Wang, Zhiqiang Wan, Chang Li
Summary: This paper proposes a multiscale aeroelastic optimization method for wing structure and material considering realistic aerodynamic loads. The optimization results show that wing elastic effects reinforce the outer section of the wing structure, and components with larger loads are strengthened as the optimization constraints become more rigorous.
Article
Computer Science, Interdisciplinary Applications
S. J. van den Boom, J. Zhang, F. van Keulen, A. M. Aragon
Summary: Smooth geometry description is crucial in design optimization, and combining level set description with a new enriched topology optimization methodology can generate correct topologies without the drawbacks of existing enriched methods.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2021)
Article
Computer Science, Interdisciplinary Applications
Tongyu Wu, Shu Li
Summary: This article presents a multiscale optimization method for solving size distribution problems of conformal lattice materials (CLMs). By optimizing at different scales, the method shows significant advantages in efficiency and accuracy.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2021)
Article
Physics, Multidisciplinary
Henrik Ronellenfitsch
Summary: Natural structures, such as plant leaves, are highly optimized through evolution and natural selection, inspiring the understanding and application of their design principles. Hierarchically organized scaffolding networks in plant leaves lead to the modeling of bending beams that capture the discrete and nonuniform nature of natural materials. By studying the phase space of optimal mechanical networks, concrete guidelines for the construction of elastic structures are provided.
PHYSICAL REVIEW LETTERS
(2021)
Article
Engineering, Multidisciplinary
Seyyed Ali Latifi Rostami, Amin Kolahdooz, Jian Zhang
Summary: This research introduces a novel algorithm for robust topology optimization of continuous structures under material and loading uncertainties by combining ESO method with XFEM. The method eliminates the need for post-processing and improves reliability in material and loading uncertainty, showcasing advantages over traditional methods.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2021)
Article
Engineering, Multidisciplinary
Mischa Blaszczyk, Dustin Roman Jantos, Philipp Junker
Summary: In this paper, a novel method for thermodynamic topology optimization is proposed, which combines Taylor series and weighted least square method to approximate the values at discrete points. Simulation results demonstrate the mesh independence, versatility, and reliability of this method on different types of meshes.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2022)
Article
Mathematics, Applied
Jing Zhang, Shengfeng Zhu, Chunxiao Liu, Xiaoqin Shen
Summary: Two-grid methods are popular and efficient for solving nonlinear problems. In this paper, a new two-grid binary level set method is proposed for eigenvalue optimization. The algorithm is shown to be effective and efficient through numerical examples in two topology optimization models.
JOURNAL OF SCIENTIFIC COMPUTING
(2021)
Article
Microscopy
Pengyu Lin, Chengtao Wang, Yun Liu, Luquan Ren, Zhihui Zhang
Summary: This study investigates the mechanical properties of the veins and membrane of a dragonfly wing. It finds that the veins have higher strength and elastic modulus compared to the membrane. The presence of the membrane reduces the fluctuation of stress and displacement between different models, indicating higher stability. The bioinspired rigid-flexible coupling structure shows superior strength and stability compared to traditional rigid structures.
Article
Chemistry, Analytical
Po-Kuei Wu, Cheng-Wei Lee, Wei-Hsiang Sun, Chun-Li Lin
Summary: This study developed a generalizable method for designing a patient-specific reconstructive scaffold implant for a large distal lateral femur defect. The implant, designed to withstand the femur load, was optimized to have a lightweight internal cavity and surface lattice features for filling with bone material. The bone scaffold implant showed improved performance compared to bone cement in terms of displacement, stress, and strain.
Article
Multidisciplinary Sciences
Xiaozhe Wang, Shanshan Zhang, Zhiqiang Wan, Zhi Wang
Summary: This paper proposes a moving boundary meshfree topology optimization method that combines the Galerkin method of weighted residuals and non-uniform rational B-splines (NURBS). The method allows for convenient application of shape constraints and results in smoother boundaries. By applying this method to a three-dimensional wing structure, it is able to meet engineering requirements.
Article
Agriculture, Multidisciplinary
Yueming Wang, Weiliang Xue, Yunhai Ma, Jin Tong, Xianping Liu, Jiyu Sun
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2019)
Article
Engineering, Multidisciplinary
Jiyu Sun, Wei Wu, Zelai Song, Jin Tong, Shujun Zhang
JOURNAL OF BIONIC ENGINEERING
(2019)
Article
Engineering, Mechanical
Jiyu Sun, Bharat Bhushan
TRIBOLOGY INTERNATIONAL
(2019)
Article
Engineering, Mechanical
Jiyu Sun, Yueming Wang, Na Li, Limei Tian
TRIBOLOGY INTERNATIONAL
(2019)
Article
Engineering, Mechanical
Jiyu Sun, Chao Liu, Fadong Li, Bharat Bhushan, Wei Wu, Jin Tong
TRIBOLOGY INTERNATIONAL
(2020)
Review
Engineering, Biomedical
Jiyu Sun, Chao Liu, Bharat Bhushan
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2019)
Article
Agricultural Engineering
Xiaohu Jiang, Jin Tong, Yunhai Ma, Jiyu Sun
BIOSYSTEMS ENGINEERING
(2020)
Article
Materials Science, Multidisciplinary
Zelai Song, Yongwei Yan, Jin Tong, Jiyu Sun
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Anatomy & Morphology
Jin Tong, Baoguang Wu, Zelai Song, Zibo Gao, Jiyu Sun, Yunhai Ma, Jian Zhuang
MICROSCOPY RESEARCH AND TECHNIQUE
(2020)
Article
Soil Science
Yueming Wang, Na Li, Yunhai Ma, Jin Tong, Wilhelm Pfleging, Jiyu Sun
SOIL & TILLAGE RESEARCH
(2020)
Proceedings Paper
Engineering, Manufacturing
Jiyu Sun, Fadong Li, Zelai Song, Na Li, Zhijun Zhang
2019 IEEE INTERNATIONAL CONFERENCE ON MANIPULATION, MANUFACTURING AND MEASUREMENT ON THE NANOSCALE (IEEE 3M-NANO)
(2019)
Proceedings Paper
Engineering, Manufacturing
Jiyu Sun, Na Li, Yueming Wang, Limei Tian
2019 IEEE INTERNATIONAL CONFERENCE ON MANIPULATION, MANUFACTURING AND MEASUREMENT ON THE NANOSCALE (IEEE 3M-NANO)
(2019)
Proceedings Paper
Engineering, Manufacturing
Wei Wu, Chao Liu, Jin Tong, Jiyu Sun, Xinyi Lin
2019 IEEE INTERNATIONAL CONFERENCE ON MANIPULATION, MANUFACTURING AND MEASUREMENT ON THE NANOSCALE (IEEE 3M-NANO)
(2019)
Proceedings Paper
Engineering, Manufacturing
Zelai Song, Fadong Li, Wei Wu, Jin Tong, Jiyu Sun
2019 IEEE INTERNATIONAL CONFERENCE ON MANIPULATION, MANUFACTURING AND MEASUREMENT ON THE NANOSCALE (IEEE 3M-NANO)
(2019)
Article
Acoustics
Zhijun Zhang, Zhenhua Hou, Xiangjin Xin, Lijie Liu, Jiyu Sun
NOISE CONTROL ENGINEERING JOURNAL
(2019)