We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.

Ansys Learning Forum Forums AIS China 结构 Random vibration分析中应力结果的解释 Reply To: Random vibration分析中应力结果的解释

Haifeng Niu
Ansys Employee

随机振动分析完成后,结果中提取的等效应力,程序默认输出是1 sigma下的等效应力.

100MPa(举例),是指得到的等效应力值满足均值为0的高斯分布,其值低于100MPa的概率为68.3%。如果取2sigma值,那么等效应力值低于200MPa的概率为就是95.45%.