4Dr.robert C Bill.Summary highlights of the advaced to toreraft transmission(ART)program[R].AIAA Paper 92 3362.July 1992.
5Litvin F L,Fuentes A,Zanzi C,et al.Design.generation and stress analysis of two versions of geometry of face gear drives[J].Mechanism and Machine Theory,2002,37:1179-1211.
6Litvin F L.Goar geometry and applied theory[M].Engle wood Cliffs.NJ:Prentics Hall Inc,1994.
7Litvin F L,Fuentes A.Howkins M.Desgn ,generteon and TCA of new type of asymmetric face gear drive with modified gcometry[J].Comput.Methods Appl.Mech.Engrg.2001.190:5837-5865.
8Bloomfield B. Face gear design[J]. Machine Design, 1947, 19: 129- 134.
9Buckingham E. Analytical mechanics of gears[M]. Dover Publications Inc., New York, NY, 1949.
10Litvin F L, Nava A, Fan Q. New geometry of face worm gear drives with conical and cylindrical worms: generation, simulation of meshing and stress analysis [ J ]. Computer Methods in Applied Mechanics and Engineering, 2002, 191 : 3035 - 3054.