Compound Mechanism Modeling of Wheel Loader Front-End Kinematics for Advance Engineering Simulation

Abstract

Compound closed-loop mechanism methodology is proposed to model the wheel loader front-end kinematics for simulating the mechanism motion in a dynamic environment. For the numerical modeling purpose, the mechanism is considered as consisting of three vector loops connected by the joint angles or displacements. Each vector loop is formulated as time-dependent ordinary differential equations (ODEs). The simulations cover the numerical solutions of the forward and reverse kinematics differential equations. The consistency error check approach is employed to validate the simulation. A case study is presented to demonstrate the reverse kinematics simulation of the compound mechanism model in Simulink environment, which includes the user-defined program, numerical solution, and error analysis. The displacement-time variations of two driving cylinders are obtained with the inputs of the lift and rotation bucket accelerations. The simulation is validated with the numerical analysis of the error results. This research provides a significant method to simulate the wheel loader motion for wide-ranging engineering application.

Department(s)

Mining Engineering

Keywords and Phrases

Construction equipment; Error analysis; Kinematics; Loaders; Mining machinery; Numerical models; Ordinary differential equations; Wheels; Dynamic environments; Engineering applications; Engineering simulation; Forward and reverse kinematics; Kinematics simulation; Mechanism model; Vector loops; Wheel loaders; Computer simulation; Closed vector loop; Compound mechanism modeling; Kinematics simulation

International Standard Serial Number (ISSN)

0268-3768; 1433-3015

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 Springer Verlag, All rights reserved.

Publication Date

01 Apr 2015

Link to Full Text

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