润滑与密封
潤滑與密封
윤활여밀봉
LUBRICATION ENGINEERING
2014年
2期
15-17,21
,共4页
粗糙表面%法向接触刚度%弹性状态
粗糙錶麵%法嚮接觸剛度%彈性狀態
조조표면%법향접촉강도%탄성상태
rough surfaces%normal contact stiffness%elastic state
粗糙表面接触问题是一类重要和具有实用价值的实际工程问题。采用Hertz理论和粗糙表面随机接触模型，研究弹性状态下粗糙表面法向接触刚度，推导出在不同接触体的法向接触刚度公式。由推导的理论公式可知，粗糙表面在随机接触模型中接触刚度跟载荷成正比，与表面粗糙度均方值成反比。
粗糙錶麵接觸問題是一類重要和具有實用價值的實際工程問題。採用Hertz理論和粗糙錶麵隨機接觸模型，研究彈性狀態下粗糙錶麵法嚮接觸剛度，推導齣在不同接觸體的法嚮接觸剛度公式。由推導的理論公式可知，粗糙錶麵在隨機接觸模型中接觸剛度跟載荷成正比，與錶麵粗糙度均方值成反比。
조조표면접촉문제시일류중요화구유실용개치적실제공정문제。채용Hertz이론화조조표면수궤접촉모형，연구탄성상태하조조표면법향접촉강도，추도출재불동접촉체적법향접촉강도공식。유추도적이론공식가지，조조표면재수궤접촉모형중접촉강도근재하성정비，여표면조조도균방치성반비。
Contact of rough surfaces is a very important and practical engineering problem.The normal contact stiffness of rough surfaces in elastic state was studied by Hertz elastic theory and random contact model of rough surface.The normal contact stiffness formulae in different contact bodies were derived.The conclusion can be drawn from theoretical formula that the normal contact stiffness is proportional with the load,and inversely proportional to the mean square value of the surface roughness,in the random contact model of rough surfaces.
