The range of CVT ratio has been calculated and the drivetrain model has been simplified according to lumped mass method.
对无级变速器速比的取值范围进行了计算，并按照质量集中法简化了传动系的模型。
In addition, the calculation results between the lumped mass method and the method of the condensation of degree of freedom have been compared.
此外，本文还对堆聚质量法和自由度凝聚法计算的结果进行了比较。
According to the tensile deformation and the impact with the seabed of cable for the platform in the deep water, the lumped mass method was adopted to set up the cable equation.
考虑深海平台系缆的拉伸形变及与海底的撞击力，采用集中质量法，建立了系缆方程组。
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。
In this paper, a finite element method with lumped mass formulation is applied to analyse the transient SH wave propagation in an elastic half-space with a dipping layer.
本文采用一种类似于差分方法的集中质量有限元模型和人工边界透射理论分析倾斜成层弹性半空间中瞬态SH波的近场波动问题。
This paper shows that the time discretization makes the lumped-mass method much better than the consistent-mass one as accuracy is concerned for simulating wave motion in the continuous model.
研究结果表明，从模拟连续模型的精度上看，时域离散化使集中质最有限元法优于一致质量法，前者可取较大时间步长。
Therefore, the lumped-mass method is the best choice because of not only easy implementation, economics but also the higher accuracy in the simulation.
从计算精度、容易程度及经济性各方面衡量，集中质量法均比一致质量法可取。
Therefore, the lumped-mass method is the best choice because of not only easy implementation, economics but also the higher accuracy in the simulation.
从计算精度、容易程度及经济性各方面衡量，集中质量法均比一致质量法可取。
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