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学者姓名：叶红玲
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摘要 ：
Fatigue-constrained topology optimization (FCTO) is a currently research hotspot, and its fatigue constraints have material property dependency, highly nonlinear, and local features, which lead to challenges for the algorithm stability, computational efficiency, and different material application of FCTO. This research provides a FCTO method for structures subjected to variableamplitude fatigue loading, incorporating the potential orthotropic behavior of materials. Firstly, a fatigue failure function derived from the constitutive model of orthotropic materials and the polynomial form in the Tsai-Hill criterion is proposed to predict multiaxial fatigue failure with a given loading spectrum. Secondly, a FCTO model minimizing structural weight is established based on the independent continuous mapping (ICM) method and constrained by a filtered, scaled, and aggregated fatigue failure function to enhance stability and convergence speed. Thirdly, the sensitivities of objective and constraint in the FCTO model are analyzed, and the optimal model is solved using convolutional filters and the globally convergent method of moving asymptotes (GCMMA) to generate manufacturable design. Finally, numerical examples demonstrate the feasibility of the method for 2D and 3D structures with varying material properties, load spectrums, and design domains. The developed method aims to facilitate the creation of lightweight designs capable of withstanding fatigue loads and to provide a framework and references for the advancement of integrated material-structure-performance designs.
关键词 ：
ICM method ICM method Fatigue constraints Fatigue constraints Orthotropic materials Orthotropic materials Topology optimization Topology optimization
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| GB/T 7714 | Ye, Hongling , Xiao, Yang , Dong, Yongjia et al. Fatigue-constrained topology optimization method for orthotropic materials based on an expanded Tsai-Hill criterion [J]. | COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING , 2024 , 433 . |
| MLA | Ye, Hongling et al. "Fatigue-constrained topology optimization method for orthotropic materials based on an expanded Tsai-Hill criterion" . | COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 433 (2024) . |
| APA | Ye, Hongling , Xiao, Yang , Dong, Yongjia , Xie, Jialin . Fatigue-constrained topology optimization method for orthotropic materials based on an expanded Tsai-Hill criterion . | COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING , 2024 , 433 . |
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摘要 ：
Topology optimization is one of the most common methods for design of material distribution in mechanical metamaterials, but resulting in expensive computational cost due to iterative simulation of finite element method. In this work, a novel deep learning-based topology optimization method is proposed to design mechanical microstructure efficiently for metamaterials with extreme material properties, such as maximum bulk modulus, maximum shear modulus, or negative Poisson's ratio. Large numbers of microstructures with various configurations are first simulated by modified solid isotropic material with penalization (SIMP), to construct the microstructure data set. Subsequently, the ResUNet involved generative and adversarial network (ResUNet-GAN) is developed for high-dimensional mapping between optimization parameters and corresponding microstructures to improve the design accuracy of ResUNet. By given optimization parameters, the well-trained ResUNet-GAN is successfully applied to the microstructure design of metamaterials with different optimization objectives under proper configurations. According to the simulation results, the proposed ResUNet-GAN-based topology optimization not only significantly reduces the computational duration for the optimization process, but also improves the structure precise and mechanical performance.
关键词 ：
modified SIMP modified SIMP topology optimization topology optimization Mechanical microstructure Mechanical microstructure ResUNet-GAN ResUNet-GAN deep learning deep learning
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| GB/T 7714 | Li, Jicheng , Ye, Hongling , Wei, Nan et al. ResUNet involved generative adversarial network-based topology optimization for design of 2D microstructure with extreme material properties [J]. | MATHEMATICS AND MECHANICS OF SOLIDS , 2024 , 29 (8) : 1683-1698 . |
| MLA | Li, Jicheng et al. "ResUNet involved generative adversarial network-based topology optimization for design of 2D microstructure with extreme material properties" . | MATHEMATICS AND MECHANICS OF SOLIDS 29 . 8 (2024) : 1683-1698 . |
| APA | Li, Jicheng , Ye, Hongling , Wei, Nan , Zhang, Xingyu . ResUNet involved generative adversarial network-based topology optimization for design of 2D microstructure with extreme material properties . | MATHEMATICS AND MECHANICS OF SOLIDS , 2024 , 29 (8) , 1683-1698 . |
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摘要 ：
Hybrid lattice structures have significant potential in engineering applications owing to their outstanding mechanical and thermal properties. In this paper, an innovative design strategy for hybrid lattice structures is proposed involving the integration of primitive surfaces with truss lattice configurations. This approach allows for the full exploitation of the mechanical and thermal properties inherent in each component, leading to the development of new hybrid lattice structures. Firstly, the quasi-static compression and fluid-solid coupling heat conduction analysis of the hybrid lattice structure is carried out by numerical simulation. Then the effects of surface wall thickness, and truss diameter on the mechanical and thermal properties of the lattice structure are discussed. Additionally, the mechanical performance of the array hybrid lattice structure is evaluated through quasi-static compression experiments. These experimental results are compared with those from the numerical simulations, validating the accuracy of the simulation model. Finally, a multi-objective optimization model targeting specific elastic modulus and heat dissipation performance (indicated by Nusselt number) is established, in response to the demand of aviation and aerospace industries for lightweight, load-bearing, and heat- dissipating multi-functional integrated lattice design. The non-dominated sorting genetic algorithm is utilized to solve the optimal model, and the distribution of feasible solutions and Pareto front are obtained. The results show that the interpenetrating hybrid lattice structure has a greater improvement in mechanical and thermal properties than the primitive surfaces. This research holds significant implications for the design of multi- performance hybrid lattice structures.
关键词 ：
Thermal property Thermal property Mechanical property Mechanical property Hybrid lattice structure Hybrid lattice structure Triply periodic minimal surfaces Triply periodic minimal surfaces Multi-objective optimization Multi-objective optimization
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| GB/T 7714 | Ye, Hongling , Tian, Fuwei , He, Weilin et al. Mechanical and thermal property analysis and optimization design of hybrid lattice structure based on triply periodic minimal surfaces [J]. | THIN-WALLED STRUCTURES , 2024 , 203 . |
| MLA | Ye, Hongling et al. "Mechanical and thermal property analysis and optimization design of hybrid lattice structure based on triply periodic minimal surfaces" . | THIN-WALLED STRUCTURES 203 (2024) . |
| APA | Ye, Hongling , Tian, Fuwei , He, Weilin , Wang, Sujun . Mechanical and thermal property analysis and optimization design of hybrid lattice structure based on triply periodic minimal surfaces . | THIN-WALLED STRUCTURES , 2024 , 203 . |
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摘要 ：
A layout optimal design method combining Galerkin decoupling technology and an independent continuous mapping method (GDT-ICM) is proposed to rearrange the layout of pore microstructure. Firstly, the Galerkin decoupling technology (GDT) is employed to solve the Brinkman equation for fluid flow in fluid-saturated porous media, which integrates the Stokes equation and Darcy's law. Within this framework a self-programmable element balance equation is developed. Secondly, a permeability interpolation function is defined for each element, incorporating the permeability of the fluid and pore microstructure. This function distinguishes strictly between the fluid domain and the pore domain. Pore microstructures with arbitrary shape including permeability information are established in an Euler mesh by introducing the Carman-Kozeny equation, shape functions, the Joukowski mapping and filter functions (a modified arctan mapping function and the MATLAB inpolygon function) based on the ICM method. Thirdly, a layout optimization model aiming at minimizing energy dissipation is established to accomplish the optimal distribution of pore microstructures. A sensitivity analysis is performed with respect to design variables and the optimal model is solved by a genetic algorithm. Numerical results demonstrate that the proposed method is effective and feasible in 2D-space. The maximum velocity within the fluid field is reduced by 45 %, and the issue of localized high pressure occurring around the pore is resolved. This paper provides guidance for solving the Brinkman coupled equation and the layout optimization of the microstructure in porous media.
关键词 ：
Galerkin decoupling technique Galerkin decoupling technique Microstructure Microstructure ICM method ICM method Joukowski mapping Joukowski mapping Layout optimization Layout optimization
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| GB/T 7714 | Ye, Hongling , Wang, Sujun , Li, Jicheng et al. Layout optimization of pore microstructure in fluid-saturated porous media using Galerkin decoupling technology and independent continuous mapping method (GDT-ICM) [J]. | APPLIED MATHEMATICAL MODELLING , 2024 , 138 . |
| MLA | Ye, Hongling et al. "Layout optimization of pore microstructure in fluid-saturated porous media using Galerkin decoupling technology and independent continuous mapping method (GDT-ICM)" . | APPLIED MATHEMATICAL MODELLING 138 (2024) . |
| APA | Ye, Hongling , Wang, Sujun , Li, Jicheng , Dong, Yongjia , Zhu, Jihong . Layout optimization of pore microstructure in fluid-saturated porous media using Galerkin decoupling technology and independent continuous mapping method (GDT-ICM) . | APPLIED MATHEMATICAL MODELLING , 2024 , 138 . |
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摘要 ：
一种基于Pix2pix网络的连续体结构拓扑优化加速设计方法包括以下步骤：(1)确定基结构，建立对应的有限元模型；(2)建立以结构质量最轻为目标，结构位移为约束的拓扑优化模型；运行位移约束的拓扑优化设计方法，求解不同载荷下的拓扑构型；(3)获取最终的拓扑构型和对应的中间构型，形成Pix2pix网络可识别的数据集；训练和评估网络结构；(4)搭建Pix2pix神经网络结构，确定生成器和判别器的网络类型，并对网络维度进行设计。(5)训练Pix2pix神经网络；(6)利用拓扑优化计算的中间构型作为输入信息，借助预训练的Pix2pix神经网络，实现由中间构型到优化构型的加速设计，并采用阈值法对生成构型进行反演，获得最终的优化构型。本发明提高了连续体拓扑优化设计的效率。
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| GB/T 7714 | 叶红玲 , 李继承 , 魏南 . 一种基于Pix2pix网络的连续体结构拓扑优化加速设计方法 : CN202310192034.4[P]. | 2023-02-24 . |
| MLA | 叶红玲 et al. "一种基于Pix2pix网络的连续体结构拓扑优化加速设计方法" : CN202310192034.4. | 2023-02-24 . |
| APA | 叶红玲 , 李继承 , 魏南 . 一种基于Pix2pix网络的连续体结构拓扑优化加速设计方法 : CN202310192034.4. | 2023-02-24 . |
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摘要 ：
本发明公开了一种具有声子带隙的轻量化吸能减振多功能点阵结构的优化设计方法，包括 : 基于独立连续映射法拓扑优化设计新的轻量化拓扑构型；重构拓扑构型为参数化结构，结合手性结构将其旋转为具有声子带隙的三维胞元结构；建立胞元结构的有限元模型，对胞元的压缩过程、模态和带隙进行仿真分析；建立以胞元结构几何参数为设计变量，以最大内能为优化目标，以一阶固有频率为约束的参数优化模型；基于响应面方法建立内能和一阶固有频率关于设计变量的代理模型；采用非线性二次规划算法进行参数优化模型求解获得胞元最优参数。本发明所述方法可高效率设计轻量化多功能点阵结构，缩短结构设计周期，提高了工作效率，节省了设计成本，对航空航天等领域轻量化吸能减振点阵结构的设计具有十分重要的应用价值。
引用：
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| GB/T 7714 | 叶红玲 , 申文杰 , 王伟伟 et al. 具有声子带隙的轻量化吸能减振多功能点阵结构的优化设计方法 : CN202310266051.8[P]. | 2023-03-13 . |
| MLA | 叶红玲 et al. "具有声子带隙的轻量化吸能减振多功能点阵结构的优化设计方法" : CN202310266051.8. | 2023-03-13 . |
| APA | 叶红玲 , 申文杰 , 王伟伟 , 田福威 . 具有声子带隙的轻量化吸能减振多功能点阵结构的优化设计方法 : CN202310266051.8. | 2023-03-13 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Continuous fiber-reinforced polymers (CFRPs) have been widely applied in aerospace and other fields due to their excellent mechanical properties, which highly depends on the material distribution and fiber orientations. The designability of CFRP structures and fiber distributions provides an opportunity for achieving better physical properties through optimization. However, local optima and the dependence of initial fiber angle variables make the concurrent optimization of fiber orientation and topology a challenging problem. In this paper, the principal stress orientation interpolated continuous fiber angle optimization (PSO-CFAO) method combined with the independent continuous mapping (ICM) method is proposed to realize the design of CFRP structures with a clear macroscopic topology and microscopic fiber distribution. A sigmoid function is applied to interpolate the fiber angle variables by the principal stress orientation. The fiber angle variables are modified and a continuous fiber design is obtained during the iteration process, which reduces the possibility of a local optimum. Several examples are provided to prove the effectiveness and stability of the proposed method, and the expected results are acquired for different initial fiber angles, material parameters and mesh densities. The proposed method provides guidance for the design of CFRP structures and the planning of fiber laying paths.
关键词 ：
Continuous fiber angle optimization Continuous fiber angle optimization Principal stress orientation Principal stress orientation Topology optimization Topology optimization Continuous fiber reinforced polymer Continuous fiber reinforced polymer
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| GB/T 7714 | Ye, Hongling , Dong, Yongjia , Yang, Jiaxi et al. Concurrent optimization method of principal stress orientation interpolated continuous fiber angle (PSO-CFAO) and structural topology [J]. | COMPOSITE STRUCTURES , 2023 , 325 . |
| MLA | Ye, Hongling et al. "Concurrent optimization method of principal stress orientation interpolated continuous fiber angle (PSO-CFAO) and structural topology" . | COMPOSITE STRUCTURES 325 (2023) . |
| APA | Ye, Hongling , Dong, Yongjia , Yang, Jiaxi , Wang, Weiwei , Cheng, Ming . Concurrent optimization method of principal stress orientation interpolated continuous fiber angle (PSO-CFAO) and structural topology . | COMPOSITE STRUCTURES , 2023 , 325 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
This paper presents a novel topology optimization method to design graded lattice structures to minimize the volume subject to displacement constraints based on the independent continuous mapping (ICM) method. First, the effective elastic properties of graded unit cells are analyzed by the strain energy-based homogenization method. A surrogate model using quartic polynomial interpolation is built to map the independent continuous topological variable to the effective elastic matrix of the unit cell and set up the relationship between the macroscale structure and microscale unit cells. Second, a lightweight topology optimization model is established, which can be transformed into an explicitly standard quadratic programming problem by sensitivity analysis and solved by dual sequential quadratic programming. Third, several numerical examples demonstrate that graded lattice structures have a better lightweight effect than uniform lattice structures, which validates the effectiveness and feasibility of the proposed method. The results show that graded lattice structures become lighter with increasing displacement constraints. In addition, some diverse topological configurations are obtained. This method provides a reference for the graded lattice structure design and expands the application of the ICM method.
关键词 ：
Topology optimization Topology optimization Effective properties Effective properties ICM method ICM method Graded lattice structures Graded lattice structures Displacement constraints Displacement constraints
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| GB/T 7714 | Wei, Nan , Ye, Hongling , Zhang, Xing et al. Lightweight topology optimization of graded lattice structures with displacement constraints based on an independent continuous mapping method [J]. | ACTA MECHANICA SINICA , 2022 , 38 (4) . |
| MLA | Wei, Nan et al. "Lightweight topology optimization of graded lattice structures with displacement constraints based on an independent continuous mapping method" . | ACTA MECHANICA SINICA 38 . 4 (2022) . |
| APA | Wei, Nan , Ye, Hongling , Zhang, Xing , Wang, Weiwei , Sui, Yunkang . Lightweight topology optimization of graded lattice structures with displacement constraints based on an independent continuous mapping method . | ACTA MECHANICA SINICA , 2022 , 38 (4) . |
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摘要 ：
本文基于独立、连续、映射(Independent、Continuous and Mapping, ICM)拓扑优化方法,以扭转双组件圆盘结构为研究对象,研究了位移约束下的双组件连续体结构拓扑优化问题,并通过数值算例验证了方法的可行性与有效性。
关键词 ：
ICM ICM 位移 位移 双组件圆盘 双组件圆盘 拓扑优化 拓扑优化
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| GB/T 7714 | 王伟伟 , 叶红玲 , 隋允康 . 位移约束下的双组件结构拓扑优化 [C] //北京力学会第二十七届学术年会论文集 . 2021 . |
| MLA | 王伟伟 et al. "位移约束下的双组件结构拓扑优化" 北京力学会第二十七届学术年会论文集 . (2021) . |
| APA | 王伟伟 , 叶红玲 , 隋允康 . 位移约束下的双组件结构拓扑优化 北京力学会第二十七届学术年会论文集 . (2021) . |
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摘要 ：
游梁式抽油机是目前较为普遍的一种露天作业采油机械。本文以游梁式抽油机为研究对象,进行抽象简化,建立了力学模型,并根据工程应用设计分析了相关的平面静力学问题,研究结果可用于指导游梁式抽油机的结构设计。本文的研究方法为实际工程问题到力学建模分析提供了研究思路和参考。
关键词 ：
游梁式抽油机 游梁式抽油机 力学模型 力学模型 静力学 静力学
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| GB/T 7714 | 刘润峰 , 叶红玲 . 关于游梁式抽油机的平面静力学问题设计及分析 [C] //北京力学会第二十七届学术年会论文集 . 2021 . |
| MLA | 刘润峰 et al. "关于游梁式抽油机的平面静力学问题设计及分析" 北京力学会第二十七届学术年会论文集 . (2021) . |
| APA | 刘润峰 , 叶红玲 . 关于游梁式抽油机的平面静力学问题设计及分析 北京力学会第二十七届学术年会论文集 . (2021) . |
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