The stress arises in the joint elements during torque tra nsmission under the action of dynamic loading. As an example, a widely used prismatic joint with regular hexagonal cross section is considered.
Dynamic loading is generated by spring mechanism.
D'Alembert's principle was employed in solving the kinestatic problem. The paper presents equations for the dynamic coefficient, the angle of clearance, ji and the maximum tangential stress. It is pointed that torque-loaded elements cannot be made from rolled stock, obtained by drawing. The presented graphs permit selection of the steel grade in accordance with the fit and degree of accuracy of the joint and with the permissible torsional stress. Experimental investigation yiel ded the relation between the contact and volume deformations of the pallet and an equation of its working surface.