论文标题
使用应力约束拓扑优化基于有效能量的最佳设计兼容位移放大机制
Optimal design of compliant displacement magnification mechanisms using stress-constrained topology optimization based on effective energy
论文作者
论文摘要
在本文中,应有应力约束的拓扑优化应用于兼容的位移放大机制的设计。通过基于有效能量的概念来制定目标函数,就不必像以前的方法那样将人工弹簧组件放置在输出和输入端口的边界和输入端口的边界。这使设计无法在输出端口(例如传感器)接收反应力的机制。此外,通过对von Mises等效应力的p-norm评估的最大应力施加限制,可以避免诸如应力浓度之类的问题。提供了位移放大机制的几个数值示例,以证明该方法的有效性。
In this paper, stress-constrained topology optimization is applied to the design of compliant displacement magnification mechanisms. By formulating the objective function based on the concept of effective energy, it is not necessary to place artificial spring components at the boundaries of the output and input ports as in previous methods. This makes it possible to design mechanisms that do not receive a reaction force at the output port, such as sensors. Furthermore, by imposing a constraint on the maximum stress evaluated in terms of the p-norm of the von Mises equivalent stress, problems such as stress concentration can be avoided. Several numerical examples of displacement magnification mechanisms are provided to demonstrate the effectiveness of the proposed method.