接线方法对触点负载试验考核评价的影响

以钮子开关KN1A－202和KN6A－202为代表，在低气压环境下进行交流阻性和交流感性负载试验，比较各种接线方法对产品评价结果的影响，对失效机理作出初步的分析。

商用继电器低触点负载寿命试验中的可靠性

电应力对于一些信号继电器和功率继电器接触电阻特性的影响，在2×106次寿命试验过程中，分别进行了研究和探讨。借助于特制的试验装置得出的结果，展示出在不同的电负载和触点材料以及结构的条件下其特征接触电阻模式。虽然较高和较低的负载，两者均可得到较低的接触电阻值，但在某些负载条件下，接触电阻却因碳的淀积物会有所增加。

继电器试验不同性质负载对试验影响研究

运用不同性质的负载(容性、电阻器),在继电器、接插件的触点试验中进行对比试验。即同一产品,在相同的试验条件下,根据其对实验样品的影响进行分析研究,并按照各种负载的等效关系,从对比试验中探索有效的实验方法,找出规律,以便代替电阻负载。

Analysis of a load application point in spline coupling teeth

The objective of this paper is to investigate the position of the resultant force in involute spline coupling teeth due to the contact pressure distribution for both ideal and misaligned conditions. In general, spline coupling teeth are in contact all along the involute profile and the load is far from uniform along the contact line. Theoretical models available in publications consider the resultant contact force as it is applied at the pitch diameter, and this study aims to evaluate the error introduced within the confines of a common approximation environment. This analysis is carried out through using finite element method （FEM） models, considering spline couplings in both ideal and misaligned conditions. Results show that the differences between the load application diameter and pitch diameter are not very obvious in both ideal and misaligned conditions; however, this ap- proximation becomes more important for the calculation of the tooth stiffness.