Research And Design On Dynamic Support System For Vehicle Index Demonstration

Armored vehicle, which is the main shock and defence force of land army, plays an important role in the contemporary war. Correct scheme and scientific management are key factors in the development of armored vehicle. So it is crucial to do early demonstration well. During the course of demonstration, various kinds of technique indexes of vehicle system need to be computed and analyzed to test their correctness and feasibility. Therefore, dynamic support system for vehicle index demonstration is designed, which has important theoretical significance and particle value.Based on comprehensive analysis of development situation and problems of dynamic simulation system, aiming at solving disadvantage of traditional simulation models, dynamic support system, which combines simulation and experience, is proposed to meet different requires during the course of demonstration.In dynamic simulation part, based on Object-Oriented modeling method, vehicle dynamic system is divided into seven parts, including engine driveline, braking system steering system wheek bodywork and resistance. Their mathematical models are respectively presented after being abstracted and simplifed to actual subsystems. Based on mathematical models, all of subsystems' simulation models are established using Matlab/Simulink, which make up of the whole dynamic simulation model of vehicle system. In the model that is intuitionistic and comprehensible, limitation introduced by single vehicle performance tested in traditional simulation models is avoided. Finally, the correctness and feasibility of simulation model are proved by the results of various vehicle performances that match with the objective.In experience part, according to index chart of vehicle technical performance, different indexes are systematically classified. Experience Equation and Text Description, these two methods are adopted to compute vehicle technical indexes and test their feasibility. Materials accumulated continually in the course of demonstration are rational utilized to make vehicle demonstration system perfect, which avoid the boring work and alleviate the burden of demonstrator, such as consulting reference materials.Integrating above two parts, the design of dynamical support system platform is programmed by Java, Matlab and VC together. The platform has friendly Human-Computer interactive interface, and vehicle performance indexes simulated and computed by it under different conditions can acquire satisfied result.