CAJ | 학술논문

摩擦是影响钢板弹簧非线性的关键因素。基于CATIA建立某少片钢板弹簧几何模型，考虑接触摩擦，在ABAQUS中建立其有限元模型，分析不同摩擦下钢板弹簧的力学特性。通过5种摩擦系数和2种载荷的不同组合，获得不同载荷及摩擦对钢板弹簧刚度、应力分布及接触压力的影响规律。结果表明：在同一载荷状态下，钢板弹簧刚度随摩擦系数的增大而增大，应力与片间接触压力随摩擦系数的增大而减小；同一摩擦状态下，刚度随载荷的增加呈增长趋势，且摩擦系数越大该趋势越明显。研究结果可为兼顾刚度，强度及接触压力性能的钢板弹簧设计开发提供参考。
마찰시영향강판탄황비선성적관건인소。기우CATIA건립모소편강판탄황궤하모형，고필접촉마찰，재ABAQUS중건립기유한원모형，분석불동마찰하강판탄황적역학특성。통과5충마찰계수화2충재하적불동조합，획득불동재하급마찰대강판탄황강도、응력분포급접촉압력적영향규률。결과표명：재동일재하상태하，강판탄황강도수마찰계수적증대이증대，응력여편간접촉압력수마찰계수적증대이감소；동일마찰상태하，강도수재하적증가정증장추세，차마찰계수월대해추세월명현。연구결과가위겸고강도，강도급접촉압력성능적강판탄황설계개발제공삼고。
Friction properties are critical for non-linear characteristics of leaf spring. The geometric model is established based on CATIA software,next its FE model involved inter-contact friction is created in ABAQUS,then mechanical characteristics of leaf spring under different friction properties are analyzed. The influence law of various friction&load combinations on its stiffness,stress distribution and contact pressure is obtained by setting different inter-contact friction and load in the FE model of leaf spring. The main results are as follows. In the condition of same load,the stiffness of leaf spring increases with the increment of friction coefficient,but its stress and inter-contact pressure are contrary;In the state of same friction,it is found that its stiffness increases with load, especially in the case of high friction coefficient. The results presented in this paper may be helpful for the design and development of leaf spring considering its stiffness,strength and contact pressure.