车辆外覆盖件冲压橘皮的成因分析与工艺优化

闫超, 高兴昌, 王乐, 张晋彰

(山东钢铁集团·日照有限公司, 山东日照 276800)

摘要: 针对DC04 冷轧板试冲压一款商用车顶盖表面出现橘皮缺陷问题, 对产生冲压橘皮的原因进行了理论分析, 并进行现

场处理和工艺优化。经过对该零部件的生产工艺过程参数进行了调整优化, 消除了板面橘皮现象, 达到用户外观质量验收标准。

关键词: 冷轧板冲压; 缺陷分析与控制; 橘皮缺陷 ; 工艺优化

中图分类号: TG38

Cause Analysis and Process Optimization of Stamping Orange Peel for Vehicle Outer Covering Parts

YAN Chao, GAO Xingchang, WANG Le, ZHANG Jinzhang

(SD Steel·Rizhao Co. , Ltd. , Rizhao Shandong 276800, China) Abstract: Aiming at the defect of orange peel on the top surface of a commercial vehicle of DC04 cold-rolled sheet stamping, the reason

of orange peel was analyzed theoretically, and the field treatment and process optimization were carried out. After adjusting and optimizing the

production process parameters of the parts, the phenomenon of orange peel on the board is eliminated, and the appearance quality of the parts

reaches the acceptance standard of the users.

Keywords: Cold rolled sheet stamping; Defect analysis and control; Orange peel defect; Process optimization

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1-210429161I9334.pdf

气囊部品静态展开测试标准解析及测试平台搭建

卢文明, 杨欣霖, 刘俊岐, 孙海洋

(中汽研汽车检验中心(天津) 有限公司 , 天津 300000)

摘要: 安全气囊能够在汽车发生碰撞后弹出, 使车内乘员与相对松软的气囊袋接触, 吸收部分碰撞能量, 从而使车内乘员的

伤害程度尽可能降低。通过对驾驶员安全气囊、副驾驶安全气囊、侧面气囊、侧面安全气帘的静态展开测试技术研究, 确定驾驶

员安全气囊、副驾驶安全气囊、侧面气囊、侧面安全气帘的静态展开测试性能参数, 完成气囊部品静态展开测试平台的搭建, 提

升了气囊部品静态展开测试的准确性, 能够为气囊设计以及生产提供准确的气囊静态展开性能参数以及检测技术支持。

关键词: 气囊部品; 静态展开; 静态参数; 测试平台

中图分类号: U463. 85

Airbag Parts Static Deployment Test Technology Research and Test Platform Construction

LU Wenming, YANG Xinlin, LIU Junqi, SUN Haiyang

(CATARC Automotive Test Center Co. , Ltd. , Tianjin 300000, China) Abstract: The airbag can be ejected after the collision of the car, so that the occupants in the car can contact with the relatively soft airbag

bag to absorb part of the collision energy. Make the occupants in the car as low as possible. The static deployment test technology of driver

airbag, front passenger airbag, side airbag and side air curtain was studied. And the performance parameters of the static deployment test

of the driver airbag, front passenger airbag, side airbag, and side air curtain were determined. The construction of a static deployment test

platform for airbag components was completed. The accuracy of the static deployment test of airbag components is improved. It can provide accurate

airbag static deployment performance parameters and detection technical support for airbag design and production.

Keywords: Airbag parts; Static deployment; Static parameters; Testing platform

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1-210429155314J4.pdf

变速器高速啸叫问题的分析与改进

童启明, 雷江泉, 杜天义

(江铃汽车股份有限公司, 江西南昌 330000)

摘要: 变速器作为汽车的核心零部件, 对变速器的研究直接影响到整车的NVH 水平, 在整车开发过程中变速器NVH 性能为

整车性能的一个重要指标。对变速器传递路径的机制进行了分析, 并制定了变速器壳体增加加强筋和优化变速器齿形参数的方案。

经过仿真分析、主观驾评、客观测试均证明车内阶次噪声改善明显, 该方法能够有效解决变速箱啸叫问题。

关键词: 变速器; 啸叫; 阶次噪声; 传递误差

中图分类号: U463. 2

Analysis and Improvement of Some Transmission High Speed Rattle

TONG Qiming, LEI Jiangquan, DU Tianyi

(Jiangling Motors Corporation, Ltd. , Nanchang Jiangxi 330000, China) Abstract: Transmission is the core part of the vehicle, and the study of transmission directly affects the vehicle NVH performances.

Therefore, transmission NVH performance is an important indicator of the vehicle performance in the process of vehicle development. Transfer

paths mechanism of transmission was analyzed, the scheme of adding stiffeners to the transmission case and optimizing the parameters of the

transmission tooth profile was formulated. Through simulation analysis, subjective evaluation and objective test, it is proved that the order

noise of vehicle is improved obviously, and this method can effectively solve the problem of transmission rattle. Keywords: Transmission; Rattle; Order noise; Transfer error

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1-2104291545595T.pdf

轿车后排路噪问题分析与改进

许静超, 黄剑锋, 白龙, 张志达, 谢然

(广州汽车集团汽车工程研究院NVH 部, 广东广州 511434)

摘要: 为了解决匀速后排路噪超标问题, 对底盘悬架车身接附点振动进行了调查, 测试结果表明后减振器与车身接附点z 向

对应后排路噪峰值频率处振动偏大。为了有针对性地优化减振器阻尼力降低减振器上安装点对车身的振动激励, 自主设计了后减

振器工作速度测试方法。利用测试数据提取得到的减振器速度特性曲线, 优化该工作速率段减振器阻尼力并进行了实车验证。结

果表明: 优化措施改善了该工况路噪水平, 达到了目标要求。

关键词: 路噪; 减振器; 位移测试

中图分类号: U491. 9

Rear Seat Road Noise Analysis and Improvement of a Sedan

XU Jingchao, HUANG Jianfeng, BAI Long, ZHANG Zhida, XIE Ran

(NVH Div. GACR&D, Guangzhou Guangdong 511434, China) Abstract: Vibration investigation of attaching point of suspension and body was conducted to solve the excess problem of rear seat road

noise at constant speed during a sedan development effort by an independent brand. The result implies that the vibration of “z” direction of

rear absorber attachment to body is more excessive than others. Rear absorber working speed measurement method was invented independently

to improve damping ratio precisely according to the speed. Under the help of this method, the damping ratio was improved and the result was

verified. The results show that the optimization measures improve the rear seat road noise level and meet the target requirements.

Keywords: Road noise; Absorber; Displacement measurement

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1-2104291519231G.pdf

十辐Y 字型轮毂铝合金车轮设计及有限元分析

麻春辉

(承德石油高等专科学校汽车工程系, 河北承德 067000)

摘要: 设计了一种十辐Y 字型轮毂车轮并运用SolidWorks 建立三维模型, 分析并计算车轮的受力情况作为边界条件, 将模型

简化后导入ANSYS Workbench, 利用CAE 分析技术对轮毂的整体结构、强度等方面进行了研究。经过载荷计算和有限元分析发现

轮辐根部的连接处是最容易出现疲劳的部位, 其次是螺栓孔和中心孔由于在转动过程中经常受预紧力和弯矩也很容易出现疲劳。

在改进轮毂结构时, 可以在螺栓孔之间安置径向加强筋或者增加轮辐的厚度来提高轮毂的疲劳寿命, 经分析验证了该设计方案的

可行性。为后续的进一步优化改进及模态分析、疲劳分析提供参考。

关键词: 铝合金车轮; 结构设计; 有限元方法; 强度分析

中图分类号: U463. 42

Design of Aluminum Alloy Ten-spoke Y-shaped Wheel and Finite Element Analysis

MA Chunhui

(Automotive Engineering Department, Chengde Petroleum College, Chengde Hebei 067000, China) Abstract: A ten-spoke Y-shaped wheel was designed. The three-dimensional entity model was simplified and imported into ANSYS

Workbench, the overall structure and static strength of the wheel and so on were studied by using CAE analysis technology. After load calculation

and finite element analysis, it is found that the joint of the spoke root is the most prone to fatigue, the bolt hole and the center hole are also

prone to fatigue due to the preload and bending moment during the rotation. In the structure, radial stiffeners may be placed between the

bolt holes or the thickness of the spokes may be increased to improve the fatigue life of the hub, the feasibility of the design scheme is verified

by analysis. It provides reference for subsequent further optimization and improvement, modal analysis and fatigue analysis.

Keywords: Aluminum alloy wheel; Structural design; FEM; Strength analysis

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1-210429140559510.pdf

自动变速器内部固定机构研究

李佳朦, 张东亮, 姚文博, 谭艳军, 林霄喆

(宁波上中下自动变速器有限公司, 浙江宁波 315800)

摘要: 结合某双离合自动变速器(DCT) 壳体设计时出现的案例, 根据CAE 分析结果对影响因素进行探讨。结果表明, 增加

驻车压板与驻车轴间隙, 能从根源上改变作用力的传递方向, 可有效减小作用在定位销上的作用力。通过有限元分析, 对驻车滥

用工况及驻车30%坡度情况下, 不同驻车轴与驻车压板间隙时变速器壳体上相应的安装孔及定位销孔的应力和应变进行了仿真,

仿真分析表明: 应力和应变控制在合理设计范围内, 提高了变速器设计的可靠性。

关键词: 自动变速器; 驻车机构; CAE 分析; 可靠性

中图分类号: U463. 212

Study on Internal Fixing Mechanism of Dual Clutch Transmission

LI Jiameng, ZHANG Dongliang, YAO Wenbo, TAN Yanjun, LIN Xiaozhe

( Ningbo UMD Automatic Transmission Co. , Ltd. , Ningbo Zhejiang 315800, China) Abstract: Based on the case of a dual clutch transmission (DCT) housing design, according to the CAE analysis results, the influencing

factors were discussed. The results show that increasing the clearance between the parking pressure plate and the parking shaft can essentially

change the direction of the force and effectively reduce the force acting on the detent pin. Through finite element analysis, the stress and

strain of the corresponding mounting hole and locating pin hole on the transmission shell under the condition of parking abuse and parking 30%

slope with different clearance between the parking axle and the parking pressing plate are simulated. The simulation analysis shows that the

stress and strain are controlled within the reasonable design range, which improves the reliability of the transmission design.

Keywords: Dual clutch transmission (DCT); Parking mechanism; CAE analysis; Reliability

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1-21042911094W24.pdf