Design technology of improving firing dispersion of MLRS

To improve firing dispersion of Multiple Launch Rocket System(MLRS),the launching dynamic model of MLRS and the simulation system of firing dispersion of MLRS were established by using transfer matrix method of multibody system.The simulation results were validated by the modal test results of the vibration characteristic for MLRS.The vibration characteristic,dynamics response and firing dispersion of MLRS under different firing environments were simulated,and the influencs of firing dispersion of MLRS with different firing orders and firing intervals was researched,the optimal firing orders and firing intervals for improving firing dispersion of MLRS was obtained.A smaller firing device with variable firing orders and intervals for MLRS were designed and actualized,and the firing technology with higher firing dispersion of MLRS by the optimal firing orders and firing intervals could be realized.In some firing dispersion test,the firing dispersion of MLRS is improved over twenty percent by using the firing technology.