Experimental analysis and dynamic model of a gun magneto-rheological damper

PDF(1202 KB)

Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (1) : 64-67.

论文

Experimental analysis and dynamic model of a gun magneto-rheological damper

LI Zhao-chun1,2; WANG Jiong1

Author information +

History +

Abstract

As the gun magneto-rheological damper works in the conditions of high impulsive loading, its dynamic characteristic and mechanical model are different from the common MR damper. A MR damper used for recoil system is designed according to a type of gun. The dynamic tests under 5 kind of current are carried out which verifies the feasibility of the MR damper to control the recoil motion. The experimental analysis results show that the output force of the MR damper is not only related with the applied current and recoil velocity but also with the inertia force, gas pressure in the cylinder, and the complexity of MR effect when subjected to impact loading. An improved polynomial model, which is of simple form, easy to solve the inverse model and suitable for real time control, is presented in this paper. After parameter identification, the polynomial model can well describe the relationship of recoil velocity and output force during recoil motion.

Key words

magneto-rheological damper / dynamic model / impulsive load / gun

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

LI Zhao-chun; WANG Jiong . Experimental analysis and dynamic model of a gun magneto-rheological damper[J]. Journal of Vibration and Shock, 2012, 31(1): 64-67