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。
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