【摘要】 在实测应力谱的基础上 ,利用可靠性理论进行了提速客车构架的疲劳强度评估和检修周期可靠性分析 ;并且根据国际焊接学会 (IIW )推荐的方法 ,初步确定了焊接构架的焊接缺陷容限 .此容限可做为控制构架焊接质量和预测寿命的依据更多还原

【Abstract】 The methods of evaluating fatigue strength,predicting life and making welded def ect limit for the welded frames of the increasing speed locomotives are discussed.The conclusion t hat the fatigue strength of the welded frames type 206 KP under the increasing speed loads is qualified has been obtained by using the method suggested by IIW.The life management standard and the welded defect limit of the welded frames are initial ly mad e.Based on the limits,the welded qualify can be controled and the life can be pr edicted.更多还原