Contrast and analyze single lumped mass and two lumped mass, conclude main factors which affect valve system.
对比分析了单质量模型和二质量模型，归纳了影响配气系统的主要因素。
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。
By the methods it is assumed that a structural system can be reduced to a lumped parameter system, of which the mass matrix is diagonal.
方法假定结构可以简化为集中参数系统，其质量矩阵是对角的。
This paper presents a new mathematical model for calculating the coupled torsional-axial vibration with non-linear stiffness for a lumped spring-mass shaft system of internal combustion engine.
本文提出了一种具有非线性刚度的弹簧一质量模型，用于计算内燃机轴系的扭转—纵向耦合振动。
A three freedom degrees mathematical model of a pair of involute spur gear transmission system is built using the lumped mass method, based on gear meshing theory and vibration impact theory.
本文基于齿轮啮合原理及振动冲击理论，采用集中质量法建立了由一对渐开线直齿圆柱齿轮组成的传动系统三自由度数学模型。
A three freedom degrees mathematical model of a pair of involute spur gear transmission system is built using the lumped mass method, based on gear meshing theory and vibration impact theory.
本文基于齿轮啮合原理及振动冲击理论，采用集中质量法建立了由一对渐开线直齿圆柱齿轮组成的传动系统三自由度数学模型。
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