某款发动机下护板的热性能评估及改进

来源 :2017中国汽车工程学会汽车空气动力学分会学术年会 | 被引量 : 0次 | 上传用户：software222

【摘要】

：

针对某款车型近期市场上出现发电机不发电和机械风扇扇叶折断问题,提出增加下护板方案.文中对发动机下护板进行了三大轮多种方案的CFD分析论证,然后,通过在各种恶劣工况下的

【作者】

：

李现今

【机构】

：

北京新能源汽车股份有限公司北京102606

【出处】

：

2017中国汽车工程学会汽车空气动力学分会学术年会

【发表日期】

：

2017年9期

【关键词】

：

汽车发动机下护板热平衡计算流体动力学

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

针对某款车型近期市场上出现发电机不发电和机械风扇扇叶折断问题,提出增加下护板方案.文中对发动机下护板进行了三大轮多种方案的CFD分析论证,然后,通过在各种恶劣工况下的热平衡最高许用温度及热害点温度对比和CFD计算的流场结果与无护板状态对比,确定了最终下护板方案.结果表明发动机下护板经过改进优化后,不仅对发电机和机械风扇起到了有效的防护作用,而且也满足了底盘的热性能要求.

其他文献

A Study on the Light Weight Design for Rear CTBA using Topology Optimization

　　In this study,topology optimization technique was applied to CTBA(Coupled Torsion Beam Axle)which is one of the rear suspension systems satisfying the requi

会议

topology optimizationrear CTBAlightweight designfinite element method

Optimization of Multiple Characteristics of a Ventilated Pillar-Brake Disc Using Grey Relational Ana

　　Brake discs are brake system components that inhibit vehicle motion by converting kinetic energy to thermal energy via friction with brake pads during the p

会议

ventilated pillar-brake disccooling performancenatural frequencygrey relation

The Research on the Trajectories of Leaf Spring

　　The paper mainly introduces the trajectories of asymmetric leaf spring in the condition of the vehicle,and elaborates the using of the center expanding mapp

会议

trajectory of plate springtrajectory of the wheel centerDMU motion simulation

Engine Vibration Optimization and Lightweight Design

　　This paper takes an engine optimization design for the vibration velocity and light weight as the target.First the crankcase is optimized to control vibrati

会议

lightweightvibration optimizationNVHengine

Research on Reducing Oil Temperature of Hydraulic Power Steering System for Commercial Vehicle

　　The oil temperature of the commercial vehicle hydraulic power steering system is related to the bore diameter of power steering gear and parameters of power

会议

commercial vehicleshydraulic powersteeringoil temperature

Failure Analysis of Cracked Torsion Beam

　　The torsion beam for a certain model of motor vehicle cracked in the bench test.The analysis of cracked torsion beam through fracture microscopic analysis,m

会议

torsion beamdecarburizationcrack

Thermal Prediction and Protection of Heat Sensitive Components in the Underhood of a Multi-purpose V

　　The purpose of this paper is to investigatethe impacts of different under-cover structures on temperature fluctuations of heat sensitive parts,and to predic

会议

thermal predictionheat protectionCFDconjugate heat transfersteady state

Performance Analysis of Linear Motorsuspension Actuator

　　In order to solve the problems of little actuator output force,low efficiency and slow response speed,a linear motor sus-pension actuator with high precisio

会议

active suspensionelectromagneticactuatorfinite element analysiselectromagneti

The Study of Thermal Management and Control Strategy Based on the Transient System Model

　　In this paper,a model of engine,vehicle dynamic,cooling system,engine block,lubrication system and underhood has been established,furthermore,based on energ

会议

system modelcooling systemscheme optimizationelectronic water pumpcontrol st

Optimal Control Allocation for Trajectory and Stability Control of Electric Vehicle with In-wheel Mo

　　Tire blowout will cause serious safety problems and impair the vehicle stability.Many studies in the literature proposed the stability controller for the ti

会议

electric vehicletire blow-outsliding mode controlyaw ratetrajectory control

某款发动机下护板的热性能评估及改进

与本文相关的学术论文