最后，借助有限元分析软件，对复合材料相机支架进行了以基频最大化为目标的简单优化设计，将相机支架的基频提高了28.88%。

At last, using finite element analyse software, the composite laminate camera mount is simply optimized aiming at maximizing its first natural frequency, which has an increase of 28.88%.

youdao

基于归一化频谱相关模型，对物体平移和旋转后的基频模进行了理论分析和实验论证，得出了物体基频模具有平移不变性的特性。

The theoretical model was established in detail, the properties of rotation and shift were theoretically and practically analyzed to conclude its shift invariant speciality.

youdao

钻柱横向非线性振动的基频随着初弯曲最大挠度的增大而减小，初弯曲对钻柱横向非线性振动基频的影响随钻柱长度的增大而增大，随轴向压力的影响而增加。

The effect of initial deflection on the first frequency increased with either the length of drill stem or the axial compressive force on the drill stem increases.

youdao