Structural mechanics analysis of bolt joint of rigid flexible coupling manipulator

As the key connecting part of rigid flexible coupling manipulator, structural dynamic characteristics bolted joint are analyzed by using simulation technology pro/e and ANSYS. Based on spring equivalent principle, finite element model bolt is established, relationship equation between contact surface pressure preload derived, its stress state analyzed; micro convex deformation Hertz theory, tangential stiffness normal derived respectively. The three-dimensional established imported into ANSYS for simulation. experiments reveal influence vibration under different conditions from aspects diameter, pre tightening force, group number distribution. conclusions have important engineering value optimization manipulator.