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A Unified Framework for Load Capacity Optimization and Compliant Cooperative Manipulation of Dual Wheeled Mobile Manipulators
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A Unified Framework for Load Capacity Optimization and Compliant Cooperative Manipulation of Dual Wheeled Mobile Manipulators
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Journal Article
A Unified Framework for Load Capacity Optimization and Compliant Cooperative Manipulation of Dual Wheeled Mobile Manipulators
2026
Overview
Flexible and safe object handling in modern industrial environments increasingly relies on mobile robotic systems capable of both dexterous manipulation and adaptive motion. However, when wheeled mobile manipulators (WMMs) operate under heavy or dynamically varying loads, challenges arise in maintaining sufficient force exertion capability and achieving stable coordination, particularly during cooperative transportation. In this paper, we present a unified framework to address these challenges with three main contributions. A quadratic-programming-based redundancy resolution scheme incorporating a load-capacity maximization metric is developed to explicitly enhance the force exertion capability of the system under heavy loads. A variable-admittance cooperative control strategy for dual-WMM transport is proposed to ensure synchronized motion and adaptive force regulation during collaborative manipulation. In addition, a unified framework that integrates configuration optimization with compliant cooperative control is established, enabling strict constraint enforcement, improved load capacity, and robust coordination between the two WMMs. Extensive simulations demonstrate the effectiveness of the proposed methods in improving load-handling performance and ensuring coordinated, compliant cooperative manipulation.
