摘要：为了解决目前人工晶状体不能实现大跨度调节问题,根据人体生物眼测量基础数据及调节机制,建立了人工晶状体襻结构生物力学模型.基于结构拓扑优化方法,对人工晶状体襻结构进行了拓扑优化分析,得到布局合理的基本骨架结构.经机构运动学分析,给出了机构目标点位移值的变化规律.采用柔性建模理论方法,考虑材料特性及关节柔性,深入研究了该放大机构的实际运动规律,给出了该柔性机构位移放大的一般规律.经本模型优化后得到柔性机构位移输出值可达输入值的3.34倍,光学部前置位移随之增加,理论上可实现视觉质量的提高.

摘要：Thermal and acoustic environments pose severe challenges to the structural design of hypersonic *** of them is to find optimal design that exhibits ideal acoustic characteristics in a frequency band,which is discussed in this paper through topology optimization aiming at resonance sound radiation in thermal *** sound radiation at resonance frequencies is the main component of response,minimization on which is likely to provide a satisfactory design.A bi-material plate subjected to uniform temperature rise and excited by harmonic loading is studied *** stress is first evaluated and considered as prestress in the following dynamic analysis;radiated sound power is then calculated through Rayleigh *** analysis is carried out through adjoint method considering the complicated relationship between stress-induced geometric stiffness and design *** the resonance frequency is constantly changing during the optimization,its sensitivity should be *** is also noticed that mode switching may occur,so mode tracking technique is employed in this *** numerical examples are finally discussed.

摘要：The design of compliant hinges has been extensively studied in the size and shape level in the *** paper presents a method for designing the single-axis flexure hinges in the topology *** kinds of hinges,that is,the translational hinge and the revolute hinge,are *** basic optimization models are developed for topology optimization of the translational hinge and the revolute hinge,*** objective for topology optimization of flexure hinges is to maximize the compliance in the desired direction meanwhile minimizing the compliances in the other *** constraints for accomplishing the translational and revolute requirements are *** popular Solid Isotropic Material with Penalization method is used to find the optimal flexure hinge topology within a given design *** results are performed to illustrate the validity of the proposed method.

摘要：Extensibility and attainability of topology optimization are discussed by investigating a variety of simultaneous topology opti-mization methods extended from the standard ***,the state of the art is highlighted through systematic classification of developed methods,such as simultaneous topology optimizations of microstructure and macrostructure,structure and supports,structure and design-dependent loads,structure and locations of involved ***,some recent results about simultaneous topology optimization of structure and applied loads are *** is shown that the simultaneous topology optimization is an integrated methodology that extends the concept of standard topology optimization in the sense of systematic *** presence of more than one kind of design variable of different nature makes the optimization problem complex but enlarges the design space to attain the optimization.

摘要：拓扑优化是一种根据载荷、约束及优化目标寻求结构材料最佳分配的优化方法,既可以用于全新产品的概念设计,也可用于已有产品的设计改进。以某火箭支架为例,进行了有限元仿真分析,并与试验结果进行了对比分析,验证了仿真分析方法的正确性,然后在已有支架的基础上,在设计接口框架下的优化空间内,实施以支架应力水平为约束条件的拓扑优化分析,参考优化后的最优拓扑并结合工艺要求,确定了新的火箭支架设计方案并进行验算,实现了火箭支架的轻量化设计,并将该优化成果应用到新研型号上。

摘要：基于HyperWorks结构优化设计软件,对某型民用飞机平尾后缘舱铰链支架进行优化设计,在给定的边界条件下通过拓扑优化技术寻找出在优化空间内的最佳材料布局,介绍了优化设计技术在飞机结构设计技术中的应用,探讨拓扑优化、尺寸优化、形状优化在飞机结构件设计技术中的应用。

摘要：利用Catia软件对悬架系统进行实体建模,并利用HyperMesh软件进行拓扑优化分析和刚、强度分析,同时结合对未来轻量化材料的探讨,寻找双横臂悬架轻量化设计方法。

摘要：提出了一种基于仿生设计的SKO方法,介绍了其原理,并以ANSYS为平台,运用APDL语言实现结构拓扑的优化设计,最后通过实例验证了该方法的可行性与有效性。

摘要：1引言结构拓扑优化又称结构布局优化，是一种根据载荷、约束及优化目标寻求结构材料最佳分配的优化方法。结构优化设计的目的在于寻求既安全又经济的结构形式，根据结构的类型和形式、工况、材料和规范所规定的各种约束条件（如强度、刚度、稳定、构造要求等），提出优化的数学模型（目标函数、约束条件、设计变量），然后根据优化设计理论和方法求解优化模型，以获得最佳的静力或动力等性态特征。结构优化设计集计算力学、数学规划、计算机科学以及其他工程学科于一体，

摘要：拓扑优化作为结构优化研究领域中的前沿课题和热点问题近年来受到设计人员的重视。其作为后续优化的起点,常见于工程结构的概念设计领域。另外,拓扑优化与后续的尺寸优化及形状优化关系密切。渐进结构优化算法原理简单,概念明确,极大地促进了拓扑优化的发展。本文基于渐进结构优化算法,通过现有的ANSYS软件,采用APDL语言开发了二维厚拱拱坝的拓扑优化程序,实现了拱坝渐进结构优化算法的应用。分析结果验证了拱坝结构二次拱理论的正确性,并分析了不同形式拱在均布荷载下合理的受力轴线。