提出了最佳连接的概念，并将节点柔性系数作为设计变量，建立了弹性连接杆系的结构优化模型。
With flexibility coefficients considered as design variables, the model of structural optimization of the POle systems connected by elastic nodes is also built up.
遮阳处理能促进叶龄、分蘖的增长，但不利于叶面积的增长，对纤维细胞的长度、柔性系数、长宽比等也产生不良影响。
Sun-shading can promote the growths of leaf age and tiller, and the leaf-area. The negative impacts on length of fibre cell, coefficient of flexibility, ratio of length and diameter.
推导出一般情形下柔性连接元的广义弹簧系数矩阵和刚体元的质量矩阵都是非对角的。
Both the general spring coefficient matrix of flexible connector and the mass matrix of discrete element are off-diagonal.
对比试验分析了刚性及柔性材料模型的压力系数。
The coefficient of wind pressure of rigid and flexible material models are tested in contrast.
将刚性圆盘单元和空间梁单元组集推导出了柔性转子系统的动力学控制方程及其系数矩阵的解析表达式。
By combining rigid disk element and 3-d beam element the dynamical control equation of flexible rotor system and its analysis formula of coefficient matrix are developed.
风流经过大跨屋面时，由于气流分离在屋面的大部分区域产生强大的吸力，并引起柔性屋面结构的振动，因此大跨屋面结构抗风设计需考虑风振响应和风振系数。
The wind load has recently become a major concern in wind-resistant design of long-span roof structures due to their characteristics: light, flexible, lightly damped, low natural frequency and so on.
精细积分法在求解刚性方程和常系数线性方程时显示出很大的优越性，这为柔性体系动力学方程的求解提供了新的工具。
The time precise integration method shows great advantage to solve the stiff equations and nonlinear equations, it provides a new computation way for the research of flexible multibody system.
并利用自行组装的测试设备研究了柔性石墨板密度、厚度以及空气压力差对相对透气系数的影响。
We also assemble a set of permeability testing equipment, by which we study on the effect of density, thickness and air pressure on the relative permeability.
以轮缘厚度系数来描述内齿圈的柔性，以均布的弹簧约束来反映内齿圈与机体的配合情况。
The ratio of rim thickness to tooth height was defined for representing the flexibility of internal ring gear.
以轮缘厚度系数来描述内齿圈的柔性，以均布的弹簧约束来反映内齿圈与机体的配合情况。
The ratio of rim thickness to tooth height was defined for representing the flexibility of internal ring gear.
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