The thesis provides fatigue life whose possibility is 95% or 50%. The analysis results of fatigue life and weak elements agree with fact.

• 本论文分析了该泵车可靠度为95%25和50%25的疲劳寿命，分析结果与泵车长期使用总结出的疲劳寿命基本吻合，且分析结果疲劳寿命薄弱部位在泵车实际工作中基本都产生过疲劳裂纹。