摘要
桥式起重机的寿命通常由焊接箱形梁的疲劳寿命决定,在此研究了接近于实际的桥式起重机焊接箱形梁试件的疲劳寿命,得到了不同可靠度R下疲劳寿命的对数函数表达式和指数函数表达式,有助于桥式起重机主梁疲劳寿命的优化计算。
The life of overhead travelling crane is usually determined by the fatigue life of welded box girder,the paper,therefore,studies the fatigue life of the test piece that is similar to the welded box girder of the overhead travelling crane,and then derives the logarithmic and exponential function expressions for the fatigue life under varied reliability R.It provides a reference for optimization calculation of the fatigue life of the main girder of the overhead travelling crane.
出处
《起重运输机械》
2011年第9期8-11,共4页
Hoisting and Conveying Machinery
关键词
桥式起重机
焊接箱形梁
疲劳寿命
计算
overhead travelling crane
welded box girder
fatigue life
calculation
