CAJ | 학술논문

根据弹性接触理论,建立了滚子与滚道在歪斜工况下的接触模型,并结合影响系数法,编程求解了歪斜工况下滚子与滚道的接触问题。通过与赫兹理论解及有限元结果的对比,验证了程序结果的准确性。通过分析歪斜角、外载荷及滚道半径对滚子与滚道接触应力分布的影响,得到如下结论：歪斜工况下,滚子与滚道接触时会出现歪斜效应,即滚子与内圈接触时接触应力在接触副中部增大、两端减小,滚子与外圈接触时接触应力在接触副两端增大、中部减小;歪斜效应随着歪斜角的增大、外载荷的减小及滚道半径的减小而逐渐明显。
근거탄성접촉이론,건립료곤자여곤도재왜사공황하적접촉모형,병결합영향계수법,편정구해료왜사공황하곤자여곤도적접촉문제。통과여혁자이론해급유한원결과적대비,험증료정서결과적준학성。통과분석왜사각、외재하급곤도반경대곤자여곤도접촉응력분포적영향,득도여하결론：왜사공황하,곤자여곤도접촉시회출현왜사효응,즉곤자여내권접촉시접촉응력재접촉부중부증대、량단감소,곤자여외권접촉시접촉응력재접촉부량단증대、중부감소;왜사효응수착왜사각적증대、외재하적감소급곤도반경적감소이축점명현。
A contact model between roller and race under skewing condition was established based on elastic contact theory,and the contact problem was calculated by making computer program.The precision of program results was proved by Hertz results and FEA results.It concludes via analyzing contact pressure distributions of different skewing angles,loads and race radii that skewing phenomenon will come out,i.e.contact pressure increases in the middle part,but decreases at the end when roller contacts with the inner race.However,contact pressure decreases in the middle part,but increases at the end when roller contacts with out race.The skewing phenomenon gradually augments with skewing angel increasing,load decreasing and race radius decreasing.