MASS MINIMIZATION-BASED OPTIMIZATION OF LOADER MANIPULATOR DRIVE MECHANISMS

Authors

  • Jovan Pavlović University of Niš, Faculty of Mechanical Engineeing
  • Dragoslav Janošević
  • Predrag Milić University of Niš, Faculty of Mechanical Engineering, Serbia https://orcid.org/0000-0001-7778-6097
  • Vesna Jovanović

Keywords:

Wheel loader, Drive mechanisms optimization, Mass reduction

Abstract

This paper presents a structural optimization approach for the manipulator drive mechanisms of a wheel loader, with the primary objective function of minimizing the mass of kinematic chain members while ensuring allowable strength and stiffness. The study focuses on evaluating the influence of manipulator mechanism parameters on structural characteristics, such as cross-sectional dimensions and wall thicknesses, under static loading conditions derived from a typical operating cycle. Finite element analysis (FEA) is used to evaluate stress distribution and deformation, while optimization is performed by allowable stress constraints. Based on the analysis results, a minimum mass criterion was defined as part of a multi-criteria optimal synthesis procedure for the manipulator drive mechanisms. The analysis shows that reducing the mass of the manipulator not only enhances structural efficiency but also contributes to improved fuel economy, lower energy consumption, and enhanced overall operational performance of the loader.

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Published

2025-07-03

Issue

Section

Articles