Kinematics and Kinetostatic Analysis of a New Type of Mechanical Excavator with Controllable Mechanism

Abstract

A new type of mechanical excavator is introduced in this paper aiming at solving the problems the traditional mechanical excavators and hydraulic excavators have respectively, which are lack of flexibility and hydraulic leaks. The analysis of the proposed novel excavator is carried out including: configuration, kinematics, force analysis, and kinetostatic analysis. Based on the equilibrium equations, the counterpoise torque, reaction force and variation of each joint are obtained for given input variables and external load. A simulation study is also proposed.

Direct Driven Hydraulic System for Skidders

“…In order to verify this hypothesis, forces acting upon hydraulic cylinders are obtained by analysing the rear plate mechanism. The topology of similar mechanical systems and their kinematics and dynamics [24,25] are used as a basis for the analysis conducted in this work. Both the classical and the direct driven electro-hydraulic systems are experimentally verified for the purpose of a comparative analysis of their efficiency.…”