摘要人体替代关节材料的摩擦问题是一个涉及生物学和机械学的复杂基础问题。随着时代的改变，压力事件和各种意外事故的发生，使得人体遭受越来越多的伤害，我国骨关节患者也明显增多，所以对人体关节材料的摩擦研究显得特别重要。在人工关节工作的过程中，使用寿命的长短一直是人们关注的焦点，因为使用时间和患者的利益息息相关，如果使用时间太短会给患者造成很大的痛苦和经济损失。在对人工关节使用寿命影响的诸多因素中，关节摩擦引起的摩擦热和温度变化对关节摩擦性能有显著的影响。75589

因此研究摩擦热对关节摩擦的影响和对摩擦热的监测就显得十分必要。所以本文主要包括三方面的内容，即摩擦热监测设备的设计、理论估算和实验。

    摩擦热监测设备的设计:在中国矿业大学自制的摩擦磨损试验机的基础上，利用热电偶测温法，设计人工关节摩擦磨损模拟过程中摩擦热的监测设备。

    理论估算部分：在现有研究基础上，首先分别进行了人工关节材料弹性模量和抗拉强度随着温度变化的研究，并且分别得到它们伴随温度变化的理论估算公式，初步得到了人工关节摩擦系数随着温度变化的理论估算公式,再而依据对实验结果的分析与拟合，对已得出的估算公式进行改进，最终得到了更为准确的人工关节摩擦系数随着温度变化的理论估算公式。

    实验部分：在现有的摩擦磨损试验机基础上设计了摩擦热监测方法这一实验部分，并对不同温度（摩擦热产生的温度变化）下的人工关节摩擦系数及磨损进行实验研究。

毕业论文关键词：关节摩擦；摩擦热监测；温度；摩擦系数

The artificial joint replacement material friction friction heat monitoring method in the process of design

Abstract  Alternative materials arthrosis friction problem is a complex foundation problems involving in biology and medicine。With the change of The Times, stressful events and unexpected accidents, make human body suffers more and more harm, oa patients also increased significantly in China, so the research on material of human body joint friction appears particularly important。In the process of artificial joint work, the length of service life has been the focus of attention, because of time and the interests of the patient, if you use time is too short to patients caused great suffering and economic losses。In many factors of influence on the service life of artificial joint, joint friction caused by friction heat and temperature variation has a significant effect on the joint friction performance。

    Therefore to study the effect of friction heat on joint friction and monitoring of friction heat is very necessary。 So this paper mainly includes three aspects of content, namely the frictional heat monitoring equipment design, the theoretical estimation and experimental。

Friction heat monitoring equipment design: in China university of mining on the basis of the home-made friction wear testing machine, using thermocouple temperature measurement method。。   

Theory to estimate the part: on the basis of existing research, first of all, the artificial joint materials elastic modulus and tensile strength with the researches on the change of temperature, temperature changes and get them respectively with the formulas for calculating theory, and further get the artificial joint as the friction coefficient formulas for the estimation of the temperature change。

Experiment part: on the basis of the existing friction and wear testing machine design this experiment part friction heat monitoring methods, and the different temperature (the temperature change of the friction heat production) of artificial joints。