The Application Research Of Passenger Vehicle Bumper Design Cycle

The bumper is automobile body's important component. Bumper system usually by part constitutions and so on face guard, inside lining, crossbeam and support, the inside lining and the support attract for the main low speed cushion can the part. Its function mainly includes, the absorption relaxes the low speed collision energy to protect around the vehicles the part; Has the collision when with the pedestrian, protection pedestrian maximum limit; Satisfies the vehicles aerodynamics the request; Satisfies the automobile body modelling and the personalized request, the decoration and the beautified automobile body.Is different according to bumper's function, may divide into must attracts can the type and attracts can the type bumper. Must attracts can the type bumper, because does not have the inside lining, the support also basic does not attract energy, therefore the cushion attracts can ability be bad, only plays the decoration role basically, does not play the protective function, but the structure simple manufacture is easy, the cost is inexpensive, uses on our country's part light passenger train. Attracts can the type bumper own be able to absorb the collision energy. It mainly through inside lining and support's distortion absorbed energy. The majority of passenger vehicles use this pattern the bumper. The bumper is to strengthen the vehicles both sides in the automobile industry development's initial period the intensity to design, uses the metallic material manufacture to become. Until the 1970s-1980s, passenger vehicle's around bumper take the metallic material primarily, generally was with thickness as 3 millimeter above steel plate ramming Cheng UXING the channel steel, superficial chrome-plating processing, with the frame side-member riveted joint or welded in together. It has section of big gaps with the automobile body, is the part which likely attaches. Along with the automobile industry and the engineering plastics profession's development, as well as the near future auto safety design theory's consummation, the automobile will no longer pursue own around structure strongest, more will be the consideration public security, and will use the energy absorption and the consumption theory designs the bumper. Around present's passenger vehicle the bumper besides maintains the original protection function, but must pursue and the chassis modelling harmony and the unification, pursue's lightweight. In order to serve this kind of purpose, at present passenger vehicle's around bumper has basically used the plastic material, is called the plastic bumperThis article launches the design cycle analysis take the FAW passenger vehicle C301 passenger vehicle project as the basis, is divided five chapters. The first chapter mainly introduced that bumper's developing process and the inside and outside research condition, simultaneously to aspects and so on craft, design cycle has carried on the simple analysis.The second chapter the primary coverage is the design input which and the early rice process study requests to the bumper design cycle in carries on the showing analysis in the design earlier period.The third chapter the primary coverage is the bumper design initial period DFMEA compilation way and the importance, as well as layout design several ways and in design process application methods. The fourth chapter mainly introduced data model's setup procedure and the inspection method, as well as correlation control's request and the criterion, simultaneously introduce the 2D blueprint the general standard.The fifth chapter carries on the summary to the entire chapter paper, simultaneously explained this article in the practical application function and the significance.