各位大侠 我现在在用patran软件做模态的频率响应分析 模型是用hypermesh 做的 现在做完之后也会出现xdb文件 但就是没结果 .06文件显示 *** USER FATAL MESSAGE 3046 (SQFREQ)
THIS FREQUENCY RESPONSE ANALYSIS HAS NO EXCITATION SPECIFIED FOR IT.
APPLIED LOADS AND ENFORCED MOTION ARE BOTH NULL.
THE RESULT WILL THEREFORE BE A ZERO SOLUTION.