A Remote Multi-barrel Rocket Launching Vehicle Emission Dynamics Simulation

With the rapid development of military technology in the world, the multiple launch rocket system (hereafter called MLRS for shot) is endowed with more new missions, and the bran-new campaign task requires higher firing accuracy and better maneuverability for rocket. On the basis of theory of firing dynamics, this article mainly make research on MLRS, establish multiple rigid body dynamics model of launch vehicle of MLRS by using virtual prototype software, research launch sequence and interval, and get approving purpose. The main research works in this article are as follows:a. On the basis of entity model, with thorough understanding of structural principle of launching system and logical predigestion and hypothesis, to establish multiple rigid body dynamics model of MLRS by using theory of multiple rigid body dynamics and virtual prototype technology.b. Make calculation and analysis of single firing stability with the established virtual prototype model, compare the simulating result data with the engineering arithmetic data and test result to verify the correctness of this virtual prototype and validity of simulating result.c. To study out possible typical launching sequence according to the structural characteristics of system and the establishing principle of launching sequence of"lower tube comes after upper tube, left and right tube by turns", and analyze initial disturbance of rocket under established launching sequence through dynamics simulating comparison so as to provide reasonable basis for determining reasonable launching sequence.d. To research launching process of MLRS model, and determine proper firing interval as per vibrating and attenuating characteristics of port of storage-transport-launch box so as to reduce initiative of next rocket in firing.This article establishes the dynamics launching model of launch vehicle, the dynamics analysis show that the more symmetrical and closer to center the launching sequence, the better the launching effect, and the more benefit to reduce initiative disturbance the inequi-interval launching. These work have helpful reference to overall conceptual design of MLRS.