CAJ | 학술논문

基于厚壁圆筒理论和 Hertz 接触理论，建立了“过渡区”合应力和界面应力峰值计算模型，并得到了其函数解析式，通过数值仿真揭示了圆弧结合界面处的应力特性。仿真结果表明：轴向应力呈现U 形分布，两端应力较大，中间比较平稳；周向应力值在承载区与非承载区的交界处变化较大，应力突变明显；对比解析计算值与仿真模拟值可知，圆弧结合面的误差均值小于“过渡区”误差均值，且均小于5%。试验测试结果表明：圆弧结合界面下的试验测试值与仿真模拟值的误差值均小于2%，试验结果与模拟结果相符，说明解析与仿真两种方法是有效可行的。研究结果可为界面结合强度理论计算及试验验证提供参考，并对油膜轴承的使用维护提出了改进建议。
기우후벽원통이론화 Hertz 접촉이론，건립료“과도구”합응력화계면응력봉치계산모형，병득도료기함수해석식，통과수치방진게시료원호결합계면처적응력특성。방진결과표명：축향응력정현U 형분포，량단응력교대，중간비교평은；주향응력치재승재구여비승재구적교계처변화교대，응력돌변명현；대비해석계산치여방진모의치가지，원호결합면적오차균치소우“과도구”오차균치，차균소우5%。시험측시결과표명：원호결합계면하적시험측시치여방진모의치적오차치균소우2%，시험결과여모의결과상부，설명해석여방진량충방법시유효가행적。연구결과가위계면결합강도이론계산급시험험증제공삼고，병대유막축승적사용유호제출료개진건의。
The mathematical models to calculate the resultant stress in transition area and the peak of interfacial stress were established based on the thick-cylinder theory and Hertz contact theory.And the analytical expression was derived.Simulation results reveal the stress characteristics of arc binding interface.It is concluded that the axial stress presents the U-distribution,both ends of the stress are large,the middle stress is relatively stable.Obvious stress mutations of the circumferential stress ap-pear in the junction of bearing and non-bearing area.Comparing the calculated and simulated methods, the mean error of stress in arc binding interface is less than that in transition area,and both of them is less than 5%.Experiments show all errors of experimental values and simulated values are less than 2%.Experimental results are consistent with simulation ones.It suggests that analytic solution and simulation are relatively effective.This work can provide references for the theoretical calculation and experimental verification of interfacial binding strength,and give out some improvement recommenda-tions for oil-film bearing maintenance.