Active lateral vibration suppression strategy for heavy vehicles based on centrifugal actuators

Abstract

This paper addresses lateral vibration suppression for heavy vehicles using a single-degree-of-freedom model equipped with dual-motor counter-rotating centrifugal actuators. Three control strategies are developed under varying information constraints. Under full-state feedback, a feedforward-feedback Linear Quadratic Regulator (LQR) achieves an 82.21% reduction in the vibration index with a control force utilization of just 1.61%, establishing the theoretical upper bound. Under acceleration-only feedback, an active damping strategy with an angular velocity adaptive mechanism reduces the vibration index by 77.71%, with peak displacement and acceleration reduced by 54.3% and 50.1%, respectively. Openloop control yields a 25.6% reduction as baseline. Comparative analysis shows that the acceleration-feedback strategy offers the optimal trade-off between suppression performance and practical feasibility under information-constrained conditions.