电子设计仿真测试开发dt3车身设计及car body design and simulation2017apac dt

1、Advanced Method and Process for AutomotiveBody Forward Conceptual Design汽车车身正向概念设计先进方法与流程Huan Qin10/15/20172017/10/15Contents目录Conceptual design process of automotive body车身概念设计流程1Structural analysis methods for car-body车身结构分析方法2Optimization algorithms优化算法3Optimal design of car-body structure车身结构优化设

2、计41. Conceptual design processof automotive body 车身概念设计流程Lower efficiency 效率低Longer period 周期长Lower reliability 可靠性低Lower design freedom 设计自由度低Reverse conceptual design逆向概念设计Higher efficiency 效率高Shorter period 周期短Higher reliability 可靠性高Forward conceptual design正向概念设计Higher design freedom设计自由度高2. Str

3、uctural analysis methodsfor car-body 车身结构分析Rotational springsExternal jointExternal jointkb4Fig. 2. The gFeoigm. e1t.rTichael mBoonf cBeIpWtuaclomn图2. 图白1车. 白身车概身念概结念构模几型何模型kb6ke6eRigid beambSemi-rigid co ectionsal stInternal jointsructureke4ke52. Structural analysis methods for car-body: TSMM 车身结构分

4、析方法Rotational springsExternal jointExternal jointkb4kb5ke6ekb6Rigid beambSemi-rigid coectionsu = ìu(x),static equilibriumfree vibrationL(u) = 0íu(x,t),îN = ìN(x),static equilibriumU = NuíN(x;w), free vibrationîQ = kuThe derivation for transfer stiffness matrix method传递刚

5、度矩阵法的推导Sd = PInternal jointske4ke52. Structural analysis methods for car-body: TSMM车身结构分析方法Rotational springsExternal jointExternal jointkb4kb5Q1¢Q¢2Q1Q2ke6ekb6Rigid beamu1¢u¢2u1u2bSemi-rigid coectionsbebeék11kkù éu ùéQ ùT12 ù é u1¢ &#

6、249;é u¢2 ùéT111211=êkú êu úêQ úêTú ê¢ úTë 2122 û ë 2 ûë 2 ûë 2122 û ë2 ûT = T T Tserbéù-k-1k-k-112 1112T= êú- kk-1 k-kk-1kë 2122 12 1122 12 ûThe

7、 derivation for transfer stiffness matrix method传递刚度矩阵法的推导éùT-1T-T-112 1112k = êú- TT-1TT-1TTë 2122 12 1122 12 ûInternal jointske4ke53. Optimization algorithms优化算法TitlebarContinuous ar discrete design variables 连续/离散变量Toolbar1Single-objective and multiple-objective 单目标/

8、多目标ColorbarPenGarlatpyh-parameterless approach 无惩罚参数23Elitist strategy 精英策略4Lower computational complexity 低计算复杂性ButtonDiversity-preservation mechanism 多样性保护机制56Parallel computing 并行RequFiirge.m3e. nTthseoGf UthIeoofp“tAimBiCzaDti”ontoaolgborxithm图3. “AB优C化D”算工法具的箱功的能图需形求用户界面73. Optimization algorit

9、hms:PPPGA 优化算法OptimumweightN7710.0109510.01269833711.288850.0126668013.5254100.01270224411.2445430.01267476510.8905220.01268106111.6322010.01270487112.0764320.0126706venNot given0.0126651411.4108310.0126702809.18540000.01273030014.2500000.0128334(Arora)Single-objective optimization单目标优化3. Optimization algorithms:PPPGA 优化算法Speedup using different parallel approaches不同并行方法的比3. Optimization algorithms:PPPGA 优化算法4. Optimal design of car-body structure 车身结构优化设计12678Topology