Study On A Commercial Vehicle Cab Crashworthiness

There are different types of car crash, mainly including the collision, thepositive side collision and piled up. In the industry in China to members of thecollision protection and research work start later, in July2006, the car sidecollision members protection "national standards promulgated. Thecommercial vehicle cab occupant protection "national standards also in thenational automobile quality supervision and inspection center (Xiang Fan),China automotive technology research center, Dong Feng automobile company,the first automobile group companies, such as the draft, and in May12,2011,promulgated on January1,2012officially implemented. The domesticcommercial vehicle manufacturers listed vehicles must meet the new standards,to entering the market sales.In the domestic market, for commercial vehicle enterprise production ofthe size of the cab vast number manufacturer, technical level is uneven. Somebusinesses in the backward manufacturing method, structural design behindthe way completely take imitation, even some big enterprise, has the ability tohis cab production, mostly is the introduction of foreign technology, or directintroduce mold, According to the drawing simple to copy. Part of theindependent development focus on interior, face before, behind the safetyprotection is more difficult to members meet the requirements. With productmanagement, technological progress and improve the internationalcompetitiveness of the need, along with our country "commercial vehicle caboccupant protection" national standards promulgated for implementation of,the commercial vehicle crashworthiness cab to the performance analysisresearch, cab occupant safety protection and for the sustainable developmentof the enterprise itself to have the important meaning.In this paper a certain type of commercial vehicle for cab object,according to commercial vehicle CAD model and combining with commercialvehicle collision of the deformation of the body characteristic, establishes thecommercial vehicle crashworthiness finite element model performance;According to the national promulgated for implementation of the commercialvehicle cab occupant protection "national standards for commercial vehiclecab occupant protection requirements and testing methods, applied to the accurate load conditions, submit LS-DYNA solver for the analysis. Detailedanalysis of the Front Wall, A column, after the structure of the above that,around the deformation characteristics; The results show that the type ofperformance testing aspects into cab completely meet the national standards.