The Analyses Of New Oil-gas Cab Composite Suspension

With the rapid development of commercial vehicle in China, vehicle comfort is also continuously improved.The cab suspension analysis is the effective way to improve vehicle comfort, and the cab suspension system design has important significance.Taking the new oil-gas cab composite suspension as the object of research, a detailed study of the fluid-solid coupling and different factors on suspension effect is carried out.Firstly, the paper based on CAE, established of cab suspension of fluid-solid coupling finite element model.Secondly, by using the finite element software ADINA, analysis the different initial pressure and different ply angle under different conditions of data of the oil-gas cab, and get the results.Then, through the real stiffness test, shock absorber dynamometer test on oil gas composite suspension further validate the performance.Finally, the real fatigue life test of this new type of composite cab suspension of the actual use of verification, to ensure that the new oil gas composite suspension design and analysis methods of validity.The paper taking a commercial vehicle as an example, compared separately adopting steel spring and gas oil composite suspension cab comfort, and get the conclusion that using the new type oil and gas composite suspended cab comfort is better than that of steel spring the cab’s, and verified the merit of model of oil and gas composite suspension.the research results also illustrate that the fluid-structure interaction finite element analysis method can not only solve the composite suspension the fluid-solid coupling problem, but also describe the composite suspension under different conditions the characteristic, and provides a means for the future of the cab composite suspension of further analysis.