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轿车 车身 设计

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轿车车身设计,轿车,车身,设计

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?sSmN T ? gUf?y?Y?rT?N? 1018391i9F9N)0fNl1 ?X?|?bsS?cO?X?N ?OW,?I?lOFTHTO?ysS?hNgc(pO?y 41-JSeygcsSItlt341g?;u1r1;?Q?TYil 09 xi1 FP:RkRRSI IF?Ss?xsS?Nu?NSOcb+N ?TN!?RSW IC JS?br7u?O?esSYe?t?yfN?tQX?YPhf?glQf?JSb?_f?v?NxvzDesign and Research On Semi-integral Bodyof a Coach BusO?YT?*m?mNNT?y?f?zc?Ye?H?Y? Ye?cfMO|+R?zUx?XT?eg? 2 0 1 2 t 1 2 g 2 ?eIXd ?(W?f?teSO?g-N?f?e/fb?ST?eT?S?R?vb?S?RUSCQ?S/f:NXN?c?O?g?R?v?R?USCQ0O:Nb?S?RUSCQ?f?(W?f?L?v?z-N?b?Sweg?S?XN?f?SvQ?T?yYBg?w?vqQTO(u0?f?N?_Y?v;b?R?/f?N?f?f?O:N?SO,?Vdk?f?f?(Wte*N?f?|?-NSg?_?v0WMO,f?:_?TR?vYOW?v?csQ?|0R?f?vO(u?T?T?hQ0O:N?f?v?R?USCQ?:N?S:g?c?O?O)R?v?O?s?X?v:NvQ?NXN?c?O?hQ?vXNPW?s?X?O?bXN?MQ?S0R?f?L?Oz-N?v/c?R0jV?X0?l?N?Sf?Yv?RlP?vq_?T?(W?Su?N?NEe?e?hQ?vf?g?TXN?O?b?|?g?R?N?Q?XN?SL?N ?b?v$O?0teg?wyO?v?SU?T?Nm4ls?vN?e?c?N?N?XNf?hQ?T?BlN?e?c?T?e1u?N?n?v?Q?s?O?_?f?N?f?N?T?v_?S4ls?Bl?eg?Bltef?ST?NwQg?Y?v:_?TR?So?Y?v/c?Ryr?T?e:N?NM?NO?l?Bl=?Q?f?0b:N?Nbg?f?u?NONbb?4N?vNS?,g?b?vJSb?_lQf?f?_Y?vQ?NN?0JSb?_?yf?g?vfW?yr?_/f0Wg?g?T?vf?gq?c:NN*NteSO0?(W?vf?g?S?hNq?c/e?dr?0?cgI?g?g?N?f?g?T0Wg?g?q?c?c(WNw?6qT?QN?/?S?Of?g0MR/T?Vf?g?Tv?v?g?qbN*N?te?vf?mQb?SO00Wg?g?Tf?gqQTb?T?y?w?Vdk?y?g?y:NJSb?_f?0,g?e?N?b?b?v LCK6899H JSb?_f?_?S?R:N?OncU_xvz?e?HQL?Nf?;SO?eHh?vnx?S?f?vR+R?g0f?IIN萨?g?N?SgsQ?N?v?eHhL?N?6qT?bb?vdkkJSb?_?f?f?L?N?v?09hncdkkf?v;SOn?N?kf?v-N?w?TGW?w?vt?w?RM?Q0(Wdk?WxN?(uPg?e?Rf?v?w?dkkf?v?g?v:_?L?N!h8h?gh?fdkkf?g?v:_?n?dkk?f?v?Bl10gT?dkkJSb?_?f?f?vMRT?V?g0?g0?S?O?g?N?Sv?v?g?T0Wg?gL? CAD ?!j?TgP?CQR?g0?R?g?S?N?fdkkf?g?v:_?n?dkk?f?v?Bl0(Wt?!h8hT?S?7hf?NdkkJSb?_?f?f?vTt?S?S?0NFO?n?f?:_?N?v?Bl?(Wf?v?S?0?ctef?0?s?OI?eb?wQg?8?v?z4x0sQ.?lQf?JSb?_f?gP?CQR?gIIIABSTRACTIn the bus structure, the body is bearing unit and functional unit. As bearingunit, body in the passenger car driving to pressure from roads and other variouscomplex load role. Car many important assembly components are body for thecarrier, so the body in the whole bus system occupies very important position, thestrength and stiffness of the direct influence on the bus service life and security.As a functional unit, the body should provide the driver with convenient workingenvironment, for the crew to provide comfortable riding environment, protectthem from bus when exercising vibration, noise, exhaust gas invasion and outsideharsh climate; in the traffic accident, reliable body structure and occupantprotection system helps to reduce the crew and pedestrian injuries caused by. Inrecent years, with the development of society and the improvement of economiclevel, people on the ride comfort and safety requirements continue to increase, atthe same time as the energy problems, the car industry of passenger car productdevelopment level of increasingly demanding: it requires the vehicle and parts hasenough strength and rigidity and good vibration characteristic at the same timerequirements; reduce weight, reduce fuel consumption. This has become the placein bus production enterprises face a difficult problem, but this topic design anddevelopment of the semi-integral bus is a very good solution to this problem.Semi monologues structure characteristic is the body floor frame and thechassis frame are combined into a whole. The chassis frame welding bracket, aconnecting board body chassis components, the chassis frame and body floorskeleton is welded, and then with the left / right side frame, front / rear wall frameand the top frame welding into the body. The floor of the vehicle body frame anda chassis frame bearing together, so called the semi-integral body.In this paper, with task group assumed LCK6899H semi-integral bodydevelopment plan is the basis of research, firstly the vehicle overall designscheme and design, and separately to the chassis, bodywork, body modeling andrelated components technology design are introduced; then a semi-integral busbody design calculation, according to the vehicles overall arrangement, thecalculation of vehicle load, uniform load distribution of axle load, based onmaterial mechanics theories on vehicle longitudinal strength check, the resultsshow that the vehicle longitudinal beam strength to meet the strengthrequirements of passenger cars. Once again a semi integral bus body skeleton,IVbefore and after the frame side frame and roof frame and a floor framework forCAD modeling and finite element analysis. Finally through the prototype tests ofthis paragraph of semi-loading bus body design rationality and reliability. It notonly can meet the requirements of the strength of the body, in the vehicleslightweight design, improve vehicle comfort, energy conservation andenvironmental protection and other aspects are very important breakthroughKey Words: Coach bus, Semi-integral body, Design, Finite elementanalysis?v U_Xd ? . IABSTRACT . III, 1 ?z ? ? . 11.1 xvzof . 11.2 xvzaIN . 21.3 CAD ?b/g?v?SU?i? . 21.4 JSb?f?b/g?vxvz?s?r . 31.5 ,g?vxvz?Q?S?vh . 3, 2 ?z f?v;SO? . 52.1 f?v;SO?eHh . 52.2 f?nb_ . 62.3 f?;N?:?vnx? . 62.4 f?(?Spe?vnx? . 72.5 f?;N?Spe?vnx? . 82.6 ,g?z;? . 9, 3 ?z JSb?f? 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