变速器多学科仿真v1

1、变速器多学科仿真- Easy5+Adams+MSC Nastran+MSC Fatigue+Actran+SimManager姜正旭September 10, 2022汽车行业中的多学科MSC公司的多学科仿真技术变速器多学科仿真典型案例讨论目录29/10/2022多学科（MD）乘用车3虚拟试验场车门下沉（流程自动化）制动器啸叫分析（链式分析）发动机缸体分析（自动装配）共模型（碰撞和NVH）多学科（MD） 商用车4焊接应力和耐久性气动系统控制冷却系统分析气缸分析道路载荷分析传统的 CAE 仿真技术面临的挑战5挑战仿真次数和方案的增加仿真模型的复杂程度日益提高缺乏沟通和同步 数据量巨大产品质量与召

2、回点式CAE工具的局限造成设计缺陷缺乏共性238万辆车召回当今的工程需求共同的系统平台方便非专家使用企业系统健壮、稳定持续改进企业仿真，包括仿真速度、质量、结果可靠性跨学科单点仿真技术6运动仿真碰撞/显式非线性非线性线性前后处理技术AdamsDytranMarcMSC NastranPatran/SimXpert串行 迭代松散的耦合手工驱动MSC仿真技术79/10/2022世界上最完整的结构仿真环境可靠性 &疲劳寿命控制 &流体弹性 & 非线性试验数据验证噪声 &振动运动 &装配MSC.ADAMS安全性 &跌落冲压 & 成型MSC.NastranMSC.PatranMSC.MarcMSC.Fa

3、tigueMSC.DytranMSC.FlightLoadsMSC.GS-MesherMSC DesignerMSC.SuperForgeMSC.SuperFormMSC.NVH ManagerMSC.FEAMSC.EASY5MSC.visualNastranMSC.ThermalMSC.ActranDigimat多学科仿真应用-乘用整车8中频响应（800 Hz）整体的动态刚度（7倍）博格华纳269/10/2022BorgWarner was doing acoustic simulations with a BEM solver for assessing the noise radiate

4、d by its mechanical components BorgWarner engineers faced a major issue: the computation times were too long hence it was difficult to respect the design schedulesCase Study: Gearbox (1/2)27microphones location(size : 0.436 m * 0.245m)Nastran ModelInfinite elements interfaceActran IE/FE ModelPerform

5、ance, single loadcase:BorgWarner BEM Software: 1.5 hours (Xeon 64 bits machine)Actran: 8 minutes (Regular PC)A multiple loadcase would not take much more timeCase Study: Gearbox (2/2)200, 2000 Hz with a step of 30 HzPressure at master microphoneActran BEM solver200, 2000 Hz with a step of 30 HzRadiated powerActran BEM solverSila andi299/10/2022Case Study: Sila andi30Business: Automotive supplierChallenge: Reduce gearbox structure-borne noise emissionSolution: Complete VPD-based radiation solutionValue: Ca