【摘要】 BAGGI理论是80年代以来在世界机械行业很有影响的疲劳设计理论,本文着重介绍了此理论的基本原理和设计方法,阐述了此方法与传统的设计方法相比的优越性,最后结合实例加以说明。更多还原

【Abstract】 BAGCI theory is an influential theory wo-rldwide for fatigue design in machinery industryin the eighties. The basic principle and practi-cal design method of this theory are introduceddetail in the superiority of this method overconventional ones are described and instancesare cited as illustration. Study of actuation control method for overload limiter in crane Through the analysis of several actuationcontrol methods of overload limiters in cranes.time-delayed control method is the prime onefor actuation control, and a concept of dynamicdelay control is brought out and its features aredescribed.更多还原