In the chapter 2, based on elastic mechanics and variation principle, the fundamental and process of static and dynamic FEM is presented, placing special emphasis on the modal superposition method.
第二章根据弹性力学和变分原理,系统总结了有限元法求解静力学、动力学问题(包括特征值、动力响应问题等)的基本原理和步骤,并重点对模态叠加法求解动力,响应问题作了阐述。
参考来源 - 多轴汽车车架结构强度有限元分析It spends much time to make an analysis of dynamic response and sensitivities with modal superposition method, and it reduces the efficiency of dynamic optimization design via this method .
在动力优化过程中,采用常规的振型叠加法作一次动力响应及其敏度分析会耗费大量计算时间,这样大大降低了动力优化设计的求解效率。
参考来源 - 汽轮机基础框架结构动力响应及灵敏度近似重分析与多目标优化设计·2,447,543篇论文数据,部分数据来源于NoteExpress
Firstly, with the curvature modal superposition method, the dynamic stress responses is calculated.
首先,应用有限元方法,基于曲率模态叠加原理计算曲率,进而计算应变、应力。
The viscoelastic damping control of steady-state harmonic response of stiffened plate is studied by using modal superposition method.
应用模态叠加法研究了用粘弹性阻尼控制加筋板的稳态简谐响应。
An accurate modal superposition method for calculating frequency response function of viscoelastically damped structures is put forward.
本文建立了粘弹阻尼结构频响函数计算的高精度模态展开法。
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