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1 2014

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Determining Parameters of Recoil Reduction System with Spring and Magnetorheological Damper Intended for Special Object

Bajkowski M., Makuch A., Lindemann Z.

Machine Dynamics Research

2014

Vol. 38, No. 3

87-96

The system considered in this paper consists of a real time operated armament module, i.e. the large-calibre special object. The methodology for calculating parameters of a recoil reduction spring is presented. The characteristics of the damping system based on the magnetorheological (MR) dampers are included. The most important feature was to maintain constant rate of fire, regardless damping, provided by the controlled MR damper. Furthermore, it was important to maintain the proper operation of the piston rod, which should always reach the maximum displacement position and come back to the initial position, regardless the number of operation cycles per minute. In our case 600-650 cycles per minute were considered. The theoretical results were compared with numerical simulations using Finite Element Analysis (FEA), which gave fair agreement.