拉伸弹簧

本文主要内容包括：1.将焊点简化为有质量的拉伸弹簧，推导出FC芯片振动模型的固有振动方程。

The main content is as following : 1 . Tension springs with mass were used to simplify solder bumps of FC , and then natural frequency equation of vibration model of FC was derived .

讨论弹簧设计，包括螺旋线压缩弹簧、拉伸弹簧和扭转弹簧。

Discusses spring design including helical compression , extension and torsion springs .

基于接触理论的拉伸弹簧可靠性分析

Reliability analysis of extension spring based on contact theory

这是弹簧在松弛状态下的长度，现在我来拉伸弹簧。

This is the relaxed length of the spring and I extend the spring .

通过把劲度系数扩展为矩阵形式，拉伸弹簧的形变与弹力在罗伦兹变换中得到了统一。

By extending stiffness coefficient into stiffness matrix , the deformation and elastic force of tensile-spring coincides with Lorentz transformation .

根据仿真结果分析清洁刷的转速及清理维护车的车速对清洁刷清洁性能的影响，还通过分析得出铲刀装置中扭转弹簧所需的工作扭矩及清洁刷装置中拉伸弹簧的载荷等。

Then analyzes the angular speed of the cleaning brush and speed of the vehicle influence on clean performance of the cleaning brush . The final analysis work torque of the torsion spring in the shovel knife device and load of the extension spring in the cleaning brush device .

拉伸螺旋弹簧的可靠性研究

Reliability research on life of the circularity draw spring

目前较多研究集中在压缩、拉伸、弯曲螺旋弹簧的应力松弛行为，有关矩形截面扭簧应力松弛研究鲜有报道。

There are more researches on compression , tension and bending stress-relaxation behavior of the coil spring , but the stress-relaxation in rectangular cross-section torsion spring is rarely reported .

蠕虫受刺激时，肌纤维结构蛋白被拉伸，其连接弹簧也被拉伸，蠕虫的荧光颜色发生改变。

When the worm is prodded , stretching the structural proteins in muscle fibers , the linking spring is stretched , and the worm fluoresces in a different color .

系统的精度是最终目标，所以我们对拉伸方向质量-弹簧阻尼系统进行仿真研究与设计，选择合理的控制系统，以提高控制系统的精度与可靠性。

System accuracy is the ultimate goal , therefore we simulate and design the tensile direction of quality - spring-damper system , and choose a reasonable control system to improve the accuracy and reliability of control system .

首先分析非均匀形状弹簧的拉伸特点，即拉伸距离随着弹簧形状而改变。

First we analyzed the tensile characteristics of non-uniform shape spring , namely tensile distance will change with the spring shape .