The 2DOF vibration model of tracked vehicle based on the state space was constituted. Principle of the four kinds of fashionable active control algorithms were introduced in detail. Based on the typical sand-soil road excitation, the dynamic response of the tracked vehicle using MR damper was simulated. From the simulation result some valued conclusions can be drew as follows: (1) the four active control algorithms all can reduce the vehicle body's vibration in different degree, and the IOC (instantaneous optimal control) and IIOC (improved instantaneous optimal control) had a better effect on the vibration absorbing of tracked vehicle suspension system. (2) The IOC needed not to solve the Riccati function and its principle was simpler. Contrarily, the COC (classical linear optimal control), IOC and IIOC control algorithms used the whole state variables as feedback, so their feasibilities were not good. The LQG only used the structural acceleration as feedback and needed few sensors, so its cost is low and it is easier to realize. (3) The maximum control of this four kinds of active control algorithms were calculated, it can be guide to the design of MR damper. (4) Though the vibration reduction effect of the four kinds active control algorithms were all perfect, it was only a theoretic value because some conditions had be assumed to simple the calculation. The experimental value may be worse than those results, and this will be validated later.
Simulation of semi-active suspension of tracked vehicle based on MR damper
Simulation einer semi-aktiven Aufhängung eines Kettenfahrzeugs mit MR-Dämpfer
2011
5 Seiten, 3 Bilder, 4 Tabellen, 8 Quellen
(nicht paginiert)
Conference paper
Storage medium
English
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