Face gear surface durability investigations

被引：6
|
作者：
Lewicki, David G. [1 ]
Heath, Gregory F.
Filler, Robert R. [2 ]
Slaughter, Stephen C.
Fetty, Jason [3 ]
机构：
[1] USA, Res Lab, Cleveland, OH USA
[2] Boeing Co, Mesa, AZ USA
[3] USA, Aviat Appl Technol Directorate, Ft Eustis, VA USA
来源：
JOURNAL OF THE AMERICAN HELICOPTER SOCIETY | 2008年 / 53卷 / 03期
关键词：
D O I：
10.4050/JAHS.53.282
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Experimental fatigue tests were performed to determine the surface durability life of a face gear in mesh with a tapered spur involute pinion. Twenty-four sets of gears were tested at three load levels: 7200, 8185, and 9075 lb-inch face gear torque, and 2190-3280 rpm face gear speed. The gears were carburized and ground, shot-peened and vibro-honed, and made from vacuum induction melting-vacuum arc remelting Pyrowear 53 steel per AMS 6308. The tests produced 17 gear tooth-spalling failures and 7 suspensions. For all the failed sets, spalling occurred on at least one tooth of all the pinions. In some cases, the spalling initiated a crack in the pinion teeth that progressed to tooth fracture. Also, spalling occurred on some face gear teeth. The American Gear Manufacturing Association endurance allowable stress for a tapered spur involute pinion in mesh with a face gear was determined to be 275 ksi for the material tested.
引用
收藏
页码：282 / 289
页数：8
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