Influence of arrangement of layers of composite material on the bearing capacity of a robotic system

Moscow Aviation Institute (National Research University), 125993 Moscow, Russia

^* Corresponding author: kamilh@mail.ru

Abstract

The robotic system is considered as a rack made of composite material, which is under dynamic influence. A method for determining the reduced characteristics of a multilayer composite material is given. The simulation of the stand was carried out. To approximate the details of the movement of bench channels: bearings, gearboxes, gear rims, motors, an algorithm and a program for calculating the rigidity of these structures have been developed in order to approximate these elements in the finite element method by replacing such elements with a system of rod structures with rigidity identical to the replaced structures: bearings, gear crowns, gearboxes, motors. The convergence of the calculation results is checked by thickening the finite element mesh. The pinching along the base of the stand was taken as the boundary conditions. A technique has been developed for modeling a three-layer stand structure. The technique for modeling a three-layer structure consists in modeling a stand, assigning filler material to it, and creating shell bearing layers on the surface of the stand, assigning it the characteristics of a multilayer composite material. A layer-by-layer stress-strain state of a stand made of composite material has been obtained. The analysis of the influence of the orientation of the layers of a five-layer composite material on the stress-strain state of the HIL simulation bench has been carried out.