和值不同的是，变量没有固有类型。
以位移模型为基础，用有限元中的分离变量法的理论，求解了圆柱壳自由振动的固有频率，计算结果与壳体解析解相一致。
This paper calculate inherent frequency of the free vibration of the cylinder shell with the theory of the separated variable method on the basis of displacement model.
导出了用变形、内力作为混合状态变量表示的求解等截面梁的横向振动固有频率的普遍方程。
The deformations and the internal forces at a cross section of a beam are taken as state variables to formulate a general equation for computing the natural frequencies of non-uniform beams.
由于构件的材料参数、几何参数及所受的载荷均为随机变量，所以构件振动时其固有频率及疲劳极限亦为随机变量。
Material characteristics, geometrical property of a structural components and the load acted on it are random variables. As a result, its natural frequency and fatigue strength are random ones.
考虑结构设计变量和多阶固有频率优化目标都具有模糊性，以适当方式形成了它们各自的隶属函数。
The multiobjective and design variables with fuzzy features are considered in this paper. Their fuzzy membership functions are formed in fitness patterns.
该方法将单元模态应变能分解为拉压、扭转和弯曲模态应变能，利用单元的主要模态应变能分量与结构固有频率的改变量对结构裂纹位置进行识别。
In the method the modal strain energy of an element is divided into tension modal strain energy, torsion modal strain energy and bending modal strain energy.
通过对龙门起重机进行谐态分析，得出应该避免的固有频率段，并且为龙门起重机的优化设计提供了目标变量或状态变量。
Finally, it gets frequency band which should be avoided and provides target variables or state variables for the optimum design of gantry crane by the harmonic response analysis for gantry crane.
通过对龙门起重机进行谐态分析，得出应该避免的固有频率段，并且为龙门起重机的优化设计提供了目标变量或状态变量。
Finally, it gets frequency band which should be avoided and provides target variables or state variables for the optimum design of gantry crane by the harmonic response analysis for gantry crane.
应用推荐