手摇鼓风机传动系统加速寿命试验研究

Research on the life test of the hand driven air blower

根据材料的有限寿命疲劳曲线方程及疲劳损伤累积假说推导出用于确定加速寿命试验时间的计算公式。针对小功率增速器的特点， 设计了用于加速寿命试验的试验方案， 试验结果表明， 手摇鼓风机在正常条件下使用， 其使用寿命可以达到１０ ０００

Based on the curve of fatigue of finite life and the fatigue damage accumulation hypothesis the calculating formulas were derived for determining the life test time. The experimental scheme of the life test for the gear system of a blower was put forward by taking the operation condition of the gear system in consideration. The test result shows that service life of the hand driven air blower exceeds 10?000 hours under normal operation conditions.