针对虚拟样机技术的悬架参数优化与汽车平顺性仿真.pdf

长春工业大学硕士学位论文 Abstract While the ear isinmotion themain factors which affectthe fort isthe fort,and thefactors as animportant index forevaluating theperformance more and more highrequirements fortheperformance ofvehicle, which makes theresearch on vehicle fort iSalsomore the development puter technology and thevirtualprototype technology isalSOwidely used intheautomotive a strong support forthesimulationanalysis ofthedesign andthetheperformance ofthevehicle, andpromote the overall progress anddevelopment oftheautomobile industry。 Thisarticlewhich use thevirtualprototype technology and bination ofthe multi-body dynamics theory,use ADAMS dynamic analysistechnique,analysis fortsimulation for acertain vehicle virtual prototyping technology, using ADAMS/ponenttemplate,change it tothe various subsystems which subsystem covers the舶nt and rearsuspensions,the vehiclebody,steering, tiresandpower transmission andother ponents, and bining the subsystem modified e use theADAMS/Car Ride module, establishment of RPC format datafileroad excitation response,andsimulationanalysis of vehicledynamics model and the acceleration curve needed power spectraldensity curves. Finally,with grade Bandgrade C road asan incentive tothechassis,vibration as a response,simulation analysis ontheimplementation ofdynamic model,research theCar in fourdifferentspeed running resultsshow:the vehicle inthe Clevelroad, therearedifferencesand Blevelroad,but the acceleration power spectraldensity reaches thepeak when thefrequency is close ,with theincreaseofvehicle speed,the vibration ofvehicle inthe verticaldirection increased,and Clevelroad mon than vibrationgrade Broad isbig. Inorder toreflectthe detection accuracy ofsuspension system model,simulation analysis offrontsuspension ofcar,study intheautomobile vibration process,observe the change notmeet