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1)  equivalent mass matrix
等质量矩阵
1.
In order to obtain the essence relation between mobile platform and manipulator, wheeled mobile manipulator s optimal configuration was discussed based on simplified mobile manipulator and equivalent mass matrix, then the relation between the direction of maximal manipulability and mobility manipulator s configurations was derived.
采用等质量矩阵方法研究了轮式移动机械手的优化构形,得到了最大操作度方向与移动机械手构形间的关系。
2)  Mass matrix
质量矩阵
1.
By revising the rotation displacement equation,a mass matrix of this kind of structure is derived by virtual principle in this paper.
采用虚功原理,通过对单元转角-位移方程的修正,推导了这种计算模型的单元质量矩阵,并编制了相应的弹性时程分析计算程序,分析了连接的半刚性在不同地震动作用下对钢框架结构动力性能的影响,并与有限元结果进行了比较。
2.
Revising the rotation displacement equation,the mass matrix and stiffness matrix of this kind of structure were derived by virtual principle.
采用虚功原理,通过对单元转角-位移方程的修正,推导了这种计算模型的单元质量矩阵和刚度矩阵。
3.
In the thesis, the author calculates the natural vibration frequencies of several wide-span bridges by using lumped mass matrix and consistent mass matrix.
利用自编程序和ANSYS结构分析软件对几座大跨度桥梁的自振特性分别采用一致质量矩阵和堆聚质量矩阵进行了计算比较。
3)  quality matrix
质量矩阵
1.
Influence of different quality matrix on natural vibration characteristic of bridges;
不同质量矩阵对桥梁自振特性的影响分析
4)  equal mass moment
等质量矩
5)  Properties of Idempotent Matrix
幂等矩阵的性质
6)  lumped mass matrix
集中质量矩阵
1.
Consistent mass matrix and lumped mass matrixes are the common types of mass matrixes in structural dynamic analysis.
一致质量矩阵与集中质量矩阵是结构动力分析中常用的质量矩阵形式。
2.
Using finite-element simulation of acoustic wave equation, the consistent mass matrix plays an opposite role to lumped mass matrix in dispersion error,consistent mass matrix makes the dispersion error to be ahead of the true signal,while the lumped mass matrix makes it to fall behind.
利用有限元模拟声波方程时,协调质量矩阵和集中质量矩阵对频散误差起着相反的作用:协调质量矩阵使频散误差领先于真实信号,而集中质量矩阵使频散误差落后于真实信号。
补充资料:等压质量变化测定
分子式:
CAS号:

性质:物质经受程控温度时,测量其在挥发产物分压恒定时的平衡质量与温度关系的一种技术。记录得到的等压质量变化曲线,质量标在向下表示减少的纵坐标上,温度标在从左向右表示增加的横坐标上。

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