CAJ | 학술논문

本文对轨道车辆线路实测载荷谱及应力谱展开研究，对已有基于损伤一致性的载荷谱校准方法进行有效修正，并利用威布尔分布和对数正态分布的组合分布进行载荷谱分布估计、实测载荷理论最大值估计、载荷谱扩展，从而实现对实测载荷谱的校准。将校准结果与损伤一致性载荷谱校准方法进行比较，充分证明组合分布对载荷谱分布估计的有效性和扩展载荷谱在轨道车辆载荷线路实测中的重要作用，从而提出利用组合分布对载荷谱分布估计的校准方法。
본문대궤도차량선로실측재하보급응력보전개연구，대이유기우손상일치성적재하보교준방법진행유효수정，병이용위포이분포화대수정태분포적조합분포진행재하보분포고계、실측재하이론최대치고계、재하보확전，종이실현대실측재하보적교준。장교준결과여손상일치성재하보교준방법진행비교，충분증명조합분포대재하보분포고계적유효성화확전재하보재궤도차량재하선로실측중적중요작용，종이제출이용조합분포대재하보분포고계적교준방법。
The measured load spectra and stress spectra of rail vehicles running on railway lines were studied . The existing load spectrum calibration method based on damage consistency was modified effectively . Estima-tion of load spectrum distributions , theoretical maximum estimation of measured loads and load spectrum ex-pansion were conducted by combination of Weibull distribution and lognormal distribution to realize calibration of measured load spectra . Comparing the calibration results with the results of the damage-consistent calibra-tion method , the effectiveness of combined distribution for load spectrum estimation and the importance of load spectrum expansion in on-line load measurement were fully proved . The calibration method based on combined distribution for estimation of load spectrum distributions was put forward .