theory of mechanics of materials

Lance propelling in coiled tubing water jet drilling is analyzed. Theory of hydromechanics and mechanics of materials are used in this analysis.

对水力射孔钻水平孔设备中软管推进进行了理论分析，运用水力学理论和材料力学理论，分析出软管推进的实际模型，进而推导出一些重要参数的计算公式。

Using the elementary theory of strength of materials, an analysis on mechanics of the tennis racket of composites has been presented. The corresponding test of the tennis racket has been designed and carried out.

本文用材料力学方法分析了复合材料网球拍的力学问题，设计监进行了相应的网球拍试验。

At the same time, from the basic theory of mechanics of materials, particularly expatiate the material secant stiffness of the principal strain direction and the principal stress direction and the element transformation matrix; they provide the theory basis of the procedure presented in this paper.

同时由材料力学出发详细推导了主应变或者主应力方向上的材料割线刚度、单元坐标转换矩阵，为本文程序的编制提供了理论基础。

For the need of locating exactly and responding quickly of clamping machine in inchworm mechanism, the symmetrical flexure hinge has been designed and listed the course of theory analysis of rotational stiffness and the method of calculations based on theory of mechanics of materials in this article.

为较好满足蠕动式微进给工作台箝位机构响应快速、定位准确的工作要求，设计轴对称型柔性铰链，并依据材料力学理论给出其转动刚度的理论分析和计算方法；

When the weak link affecting the frame rigidity is found, it will be significant to improve the frame rigidity by changing partial structure of the frame based on the theory of mechanics of materials.

找到影响车架刚度的薄弱环节后，运用材料力学理论，改变车架局部结构对提高车架的刚度具有较好的作用。

Firstly, this paper analyzes the stress of the straight impaction of the valve plate against the lift limiter and the valve seat on the working process of the ring valve, with the theory of sheet and mechanics of materials on the simplified assumption.

首先根据简化假设，用材料力学和薄板理论分析了环状阀工作过程中阀片与升程限制器及阀座正碰撞产生的冲击应力。

Adopting beam theory of mechanics of materials and applying force component analysis method, the rule that the outer load of pipeline result in pipeline supporting structure's motion is renewedly distributed was studied and the design load of pipeline supporting structure was revised.

采用材料力学的梁理论，应用力法分析方法，研究支撑结构移动导致的管系外荷载重新分配规律，修正管系支撑结构的设计荷载。

This paper does concrete inquiry to these formulae by applying the theory of bending beam in mechanics of materials, and proves that they are theory formulae.

本文应用材料力学中梁的弯曲理论，对工式作了具体推求，证明是理论公式。