您要查找的是不是：
- The lumped mass matrix is a diagonal matrix. 集中质量阵是一个对用阵。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- The lumped mass matrix is a diagonal matrix 集中质量阵是一个对用阵。
- lumped mass finite element method (LMFEM) 质量集中有限元方法
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- the lumped mass finite element method 非线性Pochhammer-Chree方程
- In the lump they were hard working people. 就整体而言，他们都是辛勤的劳动者。
- The mass rally was a total fiasco. 那次群众集会彻底失败。
- If you don't like it, you may [can] lump it. 你不喜欢，也得容忍一下。
- The cost of these two trips can be lumped together. 这两次旅行的费用可以合在一起。
- The elephant lumped along beside me. 那只象在我身旁笨拙地走着。
- Let's collect the sap before its consolidation into a hard mass. 让我们在树液坚固成团之前将之收集起来。
