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首页> 外文会议>International Conference on Mechanical Engineering and Mechanics vol.1; 20051026-28; Nanjing(CN) >Application of Evolutionary Structural Topological Optimization on Lift-arm of Loader
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Application of Evolutionary Structural Topological Optimization on Lift-arm of Loader

机译：演化结构拓扑优化在装载机提升臂上的应用

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摘要

The topological optimization of engineering structure is studied by method of evolutionary structural optimization (ESO). ESO method is based on such a simple optimization program: The material inefficient to objective function is removed step by step. Gradually, the structural layout evolves towards an optimum. In this paper, ESO method based on stresses under multiple loads is achieved by secondary development in ANSYS and the APDL (ANSYS Parametric Design Language) is used. Lift-arm of loader equipment is optimized by ESO method under multiple loads. Finally the minimal stress is 30 percent of the maximal and the maximal stress decreases from 272.7 MPa to 251.4 MPa, so stress distribution is more even and material deploying rate is higher. The results show that the method is efficient and practicability. This method can be used in topological optimization of continuum without any limit.
机译：通过演化结构优化（ESO）方法研究工程结构的拓扑优化。 ESO方法基于这样一个简单的优化程序：逐步消除对目标函数无效的材料。逐渐地，结构布局朝着最优方向发展。本文通过在ANSYS中二次开发，实现了基于多载荷下应力的ESO方法，并使用了APDL（ANSYS参数化设计语言）。装载机设备的起重臂通过ESO方法在多种载荷下进行了优化。最终，最小应力为最大应力的30％，最大应力从272.7 MPa降低至251.4 MPa，因此应力分布更均匀，材料分配率更高。结果表明，该方法有效，实用。该方法可以无限制地用于连续体的拓扑优化。

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