A ball-type universal joint provides three concentric, relatively movable spherical elements that resists both compressive and extensive forces. An outer shell carries a first shaft and defines a medial chamber comprising more than half a hemisphere with a releasably fastenable outer portion to allow...
US5160299 1991年4月15日 1992年11月3日 Sweeney; Albert Universal joint having three concentric spherical elements interconnected for relative motion by a plurality of balls carried in cooperative indentations defined in adjacent movable surfaces
This paper presents the experimental solution of the problem of a sphere with a concentric spherical cavity under diametral compression using the three-dimensional photoelastic method and calculations of the complete stress distributions along lines of interest using Golecki's analytical series solution. ...
Vanderveldt.," Stresses in Spheres with Concentric Spherical Cavities under Diametral Compression by Three-dimensional Photoelasticity".,May 1966.,(244-250).H. Pih and H. Vandervelt, Stresses in Spheres with Concentric Spherical Cavities under Diametral Compression by Three-dimensional Photoelasticity, ...