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针对振动系统在随机激励下的响应进行结构动力修改是具有实用价值的工程问题。本文以系统在道路随机激励下的加速度响应为目标，借助于系统模态及响应的灵敏度分析和矩阵摄动法，对大型机动电子方舱系统进行了快速结构动力修改。
It is a practical engineering problem to modify the structural dynamics of the vibration system under the random excitation. In this paper, the acceleration response of the system under the random excitations of the road is taken as the goal. With the help of sensitivity analysis and matrix perturbation of the system modal and response, a rapid structural dynamic modification of the large mobile electronic shelter system is carried out.