Dynamical Behavior and Strength of Structural Elements with Regeneration Induced Imperfections and Residual Stresses (B04)

具有再生引起的缺陷和残余应力的结构元件的动态行为和强度 (B04)

• 批准号: 165524705
• 金额: --
• 依托单位: Institut für Statik und Dynamik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/165524705?language=en
• 关键词: Dynamical; Behavior; Strength; Structural; Elements

Within the sub-project the stochastic influences of regeneration processes on the vibration amplitudes and lifetime of cyclic loaded components are investigated. In particular, the path-specific regeneration-induced scattering and tolerances are analyzed. The aim of the third funding period is the optimization of the repair within the virtual path considering this variances. In this context, recommendations are derived for the repair parameters using robust and reliability-based optimization strategies. The structural-mechanical optimization therefore supports the selection of regeneration paths, and provides important parameters for the regeneration of the whole engine.

在该子项目中，研究了再生过程对循环负载部件的振动幅度和寿命的随机影响。特别是，分析了路径特定的再生引起的散射和容差。第三个资助期的目标是考虑到这种差异，优化虚拟路径内的修复。在这种情况下，使用稳健且基于可靠性的优化策略得出修复参数的建议。因此，结构力学优化支持再生路径的选择，并为整个发动机的再生提供重要参数。