本文主要介绍了Radioss中的两种时间积分方法:显式积分法和隐式积分法。显式积分法适用于线性问题,计算速度快,但精度较低;隐式积分法适用于非线性问题,计算速度较慢,但精度较高。更多内容可参考Radioss的Theory Manual第四章动态分析。 这一期我们先换个话题, 讲讲Radioss中的两种时间积分: 显式积分法(Explicit)和 ...
由于硬件的升级或者软件的升级,甚至计算模型的微小修改导致不稳定的计算结果,有时候甚至导致计算模型难以计算.无锡未知元汽车科技有限公司与无锡超级计算机中心以及Altair共同合作,把Altair公司的求解器RADIOSS安装在我国自制研发的
Please refer to the Theory Manual for the effect of delta on the stability and accuracy of the Newmark time integration algorithm. When in doubt, use the default value 0.5050 for an undamped structure and 0.50 for a damped structures. The critical jerk is too small. Please refer to the ...
车身结构主要考虑整体静刚度、局部点动态刚度和碰撞性能。将动态载荷等效为线性静态载荷。采用MMO多模型拓扑优化解决复杂工况的拓扑优化问题,通过调节设计空间和设置参数,探索最优载荷路径。最后,根据拓扑优化结果形成初步的车身框架结构。 1. 概述 在车身概念设计阶段,设计约束比较少,车身结构设计具有最大的灵活性。使用...
Thanks to the new internal ID management, HyperMesh now synchronizes the internal IDs with solver IDs whenever possible, the exception being models with duplicate solver IDs (allowed in Nastran, LS-DYNA, OptiStruct, and Radioss solver interfaces). Also, the solver ID is now available across ...
Thanks to the new internal ID management, HyperMesh now synchronizes the internal IDs with solver IDs whenever possible, the exception being models with duplicate solver IDs (allowed in Nastran, LS-DYNA, OptiStruct, and Radioss solver interfaces). Also, the solver ID is now available across ...