摘要
为较好地再现复杂结构的随即振动 ,应以尽可能多的频率点描述基础激励谱的形状。但ANSYS中对频率点的限制为 5 0点。为克服这一限制 ,采用频率响应计算取代了直接到随机响应计算。这种方法用于某复杂结构的随机振动仿真中 。
To reveal the characteristic of random vibrations of complex structures, the number of frequency samples is large and over the limit of ANSYS, but it is necessary for describing the actuation spectrum. To overcome the limit, calculation of frequency response is taken to substitute direct calculation of random vibration response. This method was proved effective in calculation of random vibration response for random vibration simulation of a complex structure.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2002年第B11期102-104,共3页
Journal of Southwest Jiaotong University
基金
中国工程物理研究院基金资助项目 (Z2 0 0 0 0 6 0 8)
