A group of equations of assembly datum variation is proposed to model assembly tolerance chain and tri-dimensional tolerance analysis result is obtained through solving those equations.
提出用装配基准变动方程组来建立装配公差链模型，通过求解此方程组获得三维装配公差链的分析结果。
Using the matrix assembly method, these acoustic equations can be composed a universal program with a general format for sound transmission in insulating glass.
根据所建立的声学方程，通过矩阵组装方法来进行中空玻璃声透射问题的研究。
The basic assumptions, equations and boundary conditions for bottom hole assembly (BHA) analysis were discussed.
讨论了下部钻具组合分析的基本假设、基本方程和相应的边界条件。
Then system error contains Angle measurement error, structure error, assembly error, bearing play etc. is discussed, and the compensation equations are given.
然后研究了综合转角测量误差、结构误差、安装误差、轴承窜动等在内的系统误差，通过计算给出了补偿公式。
A numerical model of bottom-hole assembly was developed and the differential equations of finite element for its dynamic analysis were derived.
建立了底部钻具组合动态分析的数值模型，推导了动态分析的有限元微分方程。
A numerical model of bottom-hole assembly was developed and the differential equations of finite element for its dynamic analysis were derived.
建立了底部钻具组合动态分析的数值模型，推导了动态分析的有限元微分方程。
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