Design for missile test system based on VI
A large amount of data acquisition,storage and analysis should be carried out during the research for some type of missile.Constructing a test system consisting of VI can greatly simplify the design,reduce the volume and weight,shorten the research interval and acquire a good flexibility.This paper introduces a general-purpose test platform for missile based on PXI bus and NI Series cards.It can acquire and test the data from analog,digital,bus and image channels and can communicate with the tested products.The test system has already been put into operation,which has features of appropriate design,reliable performance,accurate testing,convenient operation and satisfied results.
Abstract: Road profile and the technical condition of the suspension affect a large measure of comfort, road safety and endurance. This paper contains the theoretical study results of the offroad vehicle vibration when running on a bumpy section of road. For this purpose has been developed mechanical model of tire-suspension -self supporting bodyshell system with five degrees of freedom. The bodyshell was approximated by a flat plate, suspension and tires were modelled by four mass-damper-spring system attached to the four corners of the plate; the tire mass together with a mass suspension is concentrated at a single point. Vertical vibration displacement, velocity and acceleration of the body were determined using Matlab. Key words: vehicle vibration, vehicle mechanical modelling, road deformation.