基于优化准则法的约束阻尼板拓扑优化方法

专利类型：发明专利

语言：中文

申请号：CN201410477539.6

申请日：20140918

发明人：郑玲房占鹏柳成峰李以农

申请人：重庆大学

申请人地址：400044 重庆市沙坪坝区沙坪坝正街174号

公开日：20150107

公开号：CN201410477539.6

代理人：赵荣之

代理机构：北京同恒源知识产权代理有限公司 11275

摘　　要：本发明公开了一种基于优化准则法的约束阻尼板拓扑优化方法，用于解决约束阻尼板约束阻尼材料的优化布局问题。该方法具体包括：采用SIMP模型对约束阻尼材料进行插值，建立约束阻尼板的拓扑优化模型。建立约束阻尼板的有限元模型，对有限元模型进行模态分析，并根据灵敏度计算公式，计算约束阻尼胞单元的灵敏度，采用独立网格滤波技术对灵敏度进行滤波，采用优化准则法对拓扑优化模型进行求解，获得约束阻尼板的拓扑优化构型。本发明在附加一定约束阻尼材料的情况下，通过优化约束阻尼材料的布局，有效降低结构振动响应，提高约束阻尼材料利用率。

主权项：基于优化准则法的约束阻尼板拓扑优化方法，其特征在于：包括以下步骤：1)建立待优化表面完全覆盖约束阻尼材料的约束阻尼板的有限元模型，定义边界条件；2)以约束阻尼单元相对密度x_i为初始化设计变量，以体积百分比α为约束条件；3)建立拓扑优化模型： $\{\begin{matrix} find : x_{i}, i = 1,2 . . . n \\ \min : ξ_{r}, r = 1,2,3 . \\ s . t : Σ_{i = 1}^{n} x_{i} V_{i} - V \leq 0, V = &alph关键词：法律状态：生效IPC专利分类号： G06F17/50;G06F17/00;G;G06;G06F;G06F17;G06F17/50;G06F17/00var ShareData = new Array();
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