CAJ | 학술논문

高斯分布粗糙度函数相比余弦粗糙度函数，能更贴近地描述跑合前齿面粗糙轮廓曲线幅度分布。研究高斯分布的齿面粗糙度对齿轮跑合过程中轮齿间油膜压力和膜厚的影响，探讨瞬态效应对轮齿润滑的影响，利用多重网格技术求得齿轮瞬态微弹流润滑的完全数值解。结果表明：采用高斯分布粗糙度时油膜压力变化明显，更符合啮合点出现粗糙峰而形成的轻微冲击对轮齿间油膜的影响，而采用余弦粗糙度时油膜压力则变化相对比较缓和；采用高斯分布粗糙度的最大油膜压力明显大于采用余弦粗糙度的最大油膜压力，故按照余弦粗糙度计算的最大油膜压力与实际最大油膜压力可能有较大偏差。
고사분포조조도함수상비여현조조도함수，능경첩근지묘술포합전치면조조륜곽곡선폭도분포。연구고사분포적치면조조도대치륜포합과정중륜치간유막압력화막후적영향，탐토순태효응대륜치윤활적영향，이용다중망격기술구득치륜순태미탄류윤활적완전수치해。결과표명：채용고사분포조조도시유막압력변화명현，경부합교합점출현조조봉이형성적경미충격대륜치간유막적영향，이채용여현조조도시유막압력칙변화상대비교완화；채용고사분포조조도적최대유막압력명현대우채용여현조조도적최대유막압력，고안조여현조조도계산적최대유막압력여실제최대유막압력가능유교대편차。
Roughness of Gaussian distribution can more accurately describe the rough outline curve amplitude distribu?tion of tooth surface before running?in than cosine roughness function?The effect of Gaussian distribution roughness on gear tooth lubrication oil film pressure and thickness during running?in was studied, and the influence of the transient effect on gear lubrication was discussed?The complete numerical solution about micro transient elastohydrodynamic lubrication of spur gear was obtained through multigrid technique?The results show that, as compared to cosine roughness, there is an evident oil film pressure variation when considering roughness as Gaussian distribution, which conforms more to the influ?ence of mild shock from rough peak at mesh point on oil film between gear teeth? However, the oil film pressure change is rather mild when considering roughness as cosine function distribution? The maximal oil film pressure with Gaussian distri?bution roughness is obviously much greater than that with cosine function roughness, therefore, the maximal oil film pres?sure calculated according to cosine function roughness may have larger deviation compared to the actual maximal oil film pressure.