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- The lumped mass matrix is a diagonal matrix. 集中质量阵是一个对用阵。
- For the reason of accuracy, efficiency and low cost simulation, the lumped mass matrix and consistent mass matrix should be used for low order modes and high order modes respectively. 从计算精度、效率和成本综合考虑,建议低阶固有模态分析采用集中质量矩阵,高阶固有模态分析采用一致质量矩阵。
- The lumped mass matrix is a diagonal matrix 集中质量阵是一个对用阵。
- In this paper,the Hamiltonian system of EM waveguide is introduced and the consistent and lumped mass matrices are constructed after symplectic regularization and semi-analytical discretization. 本文在介绍这一体系之后,经半解析横向离散及辛正则化,给出了类凝聚和协调质量阵。
- lumped mass matrix 集中质量矩阵
- In this paper, we consider lumped mass metheds for parabolic type integro-differential equations. 本文讨论了抛物型积分微分方程的集中质量法。
- Neglect the axial deformations and consider only the lumped masses. 略去轴向变形不计,仅考虑集中质量。
- The flexible plates of chain of chain drive in the tension side is translated to the mechanical model with lumped mass based on the software ANSYS. 利用ANSYS首先分析紧边链条的预应力,然后进行模态分析,计算其固有频率和振型并与理论计算结果对比,证明了模态分析结果的正确。
- Considering the torque fluctuation of the driving shaft and the existence of the backlashes in both gear pair and clutch, a lumped mass gear-rattling model is established. 在考虑主动轴驱动转矩波动、齿轮副齿侧间隙及离合器间隙的情况下,建立了同时含有离合器间隙和齿侧间隙的齿轮传动系统(简称双间隙系统)拍击振动分析的集中质量模型。
- In order to deduce the static resistance from the result of a STN test, many interpretation methods had been developed, based on the lumped mass model or the stress wave model. 目前常用于诠释静动态载重试验的方法有单质点模型诠释法、分段卸载点法与单向度应力波传法。
- Dynamics theory and the “mass spring dashpot” system model were used to develop an equilibrium equation.The mass matrix, elasticity matrix and damping matrix were given. 从机械系统动力学理论出发,参照振动系统的“质量-弹簧-阻尼”模型,分析推导了系统动力学平衡方程,得到了质量矩阵、弹性矩阵及阻尼矩阵的具体表达式。
- Accounting the key point of building dynamic model to be setting up 2 steps tensor T(subscript ia) and 3 steps tenser T(subscript ibc) and assembling the equivalent mass matrix. 建模时重点确定二阶张量、三阶张量和组装等效质量阵,建模过程简单、快捷,通用性强。
- The complex modal analysis method is generalized to the cases in which stiffness matrix may be singular and mass matrix,damping matrix and stiffness may be nonsymmetric. 把复模态分析法推广到刚度矩阵可以奇导且质量矩阵、阻尼矩阵和刚度矩阵均不必为对称的情形。
- Using lumped mass model, we construct dynamic equation of the flexible arm as well as its Simulink model. Using Simulink model, we analyze how Coulomb friction, motor inertia and reduction ratio of gear affect system performance. 采用集中质量模型建立了柔性手臂的动力学方程及其Simulink模型,利用Simulink模型仿真分析了库仑摩擦力、电机转子惯量和齿轮减速比对系统性能的影响。
- A mass matrix of guy clement is deduced according to the principle of virtual work, and the nonlinear static and dynamic incremental equilibrium equation of guyed towers is established. 基于虚功原理推导了索单元的一致质量矩阵。 建立了桅杆结构的非线性静、动力增量平衡方程。
- Abstract In adopting API method, the kinetic model of a multistage pumping rod system was simplified into mul tiple lumped masses connected in series by springs. 采用API方法时,把多级抽油杆系统动力学模型简化成由多个弹簧串联多个集中质量。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- lumped mass finite element method (LMFEM) 质量集中有限元方法
- Rotational velocities are combined with the element mass matrices to form a body force load vector term. Units are radians/time. 我看到帮助里有这么一句话,能自己设定角速度的单位吗?
- In the lump they were hard working people. 就整体而言,他们都是辛勤的劳动者。