Mesh Efficiency of the Integrated Safe/Arm Device of the Pershing II Missile System

摘要

This report describes the results of an analytical study of the minimum point efficiencies of the gear meshes of the integrated safe/arm device (ISAD) of the Pershing II missile system. It expands earlier work on gear mesh efficiency by considering the possibility of involute meshes which have a non-unity contact ratio. Conclusions concerning the mesh efficiency as a function of the coefficient of friction, the presence of undercutting of the involute pinions, and the contact ratio of the involute meshes are presented. The analyses on which these results are based are given in detail in the report.