在有限元软件中确实提到了利用冲击响应谱来近似求解复杂结构在此冲击作用下的响应情况,就是不知道这个求解是怎么算的
For example, the spectrum generated for a floor in a building that is
subjected to an earthquake can then be applied to a complex model of a piece of equipment
attached to that floor. The peak response of each mode of the equipment model is obtained from the spectrum, and these peak modal responses are combined to create the overall response.