载荷谱在坦克上的应用

APPLICATION OF LOAD SPECTRUM ON THE TANK

本文用理论和试验相结合的方法估算了坦克传动箱在载荷谱作用下的疲劳寿命 ;进而用以载荷谱为依据的螺纹优化冷挤压强化技术大幅度地提高了坦克传动箱的疲劳寿命 ,与传统寿命估算方法不同 ,本文在威布尔 (Weibull)σ Ν曲线公式与线性疲劳损伤累积法则的基础上建立了高周疲劳寿命公式。运用这一公式估算寿命 ,结果与试验和实际使用都符合较好。由文中的理论分析和试验结果可见 。

In combination of theory with test, the fatigue life of the tank gear box was estimated by the action of the load spectrum and then the life of the gear box was greatly increased using the thread hole optimization cold extruded strengthening technology based on the load spectrum. Being different from the traditional life estimation, the formula of the long period fatigue life was established on the basis of the Weibull σ Ν curve formula and linear fatigue damage accumulative law. Through the life estimation with the formula, the result and test of life estimation are conformed with the real application. According to the theory analysis and test result, the load spectrum is the most important basic data for the reliability design and reliability increasement of tanks.