車輛外覆蓋件沖壓橘皮的成因分析與工藝優化

閆超, 高興昌, 王樂, 張晉彰

(山東鋼鐵集團·日照有限公司, 山東日照 276800)

摘要: 針對DC04 冷軋板試沖壓一款商用車頂蓋表面出現橘皮缺陷問題, 對產生沖壓橘皮的原因進行了理論分析, 并進行現

場處理和工藝優化。經過對該零部件的生產工藝過程參數進行了調整優化, 消除了板面橘皮現象, 達到用戶外觀質量驗收標準。

關鍵詞: 冷軋板沖壓; 缺陷分析與控制; 橘皮缺陷 ; 工藝優化

中圖分類號: 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

氣囊部品靜態展開測試標準解析及測試平臺搭建

盧文明, 楊欣霖, 劉俊岐, 孫海洋

(中汽研汽車檢驗中心(天津) 有限公司 , 天津 300000)

摘要: 安全氣囊能夠在汽車發生碰撞后彈出, 使車內乘員與相對松軟的氣囊袋接觸, 吸收部分碰撞能量, 從而使車內乘員的

傷害程度盡可能降低。通過對駕駛員安全氣囊、副駕駛安全氣囊、側面氣囊、側面安全氣簾的靜態展開測試技術研究, 確定駕駛

員安全氣囊、副駕駛安全氣囊、側面氣囊、側面安全氣簾的靜態展開測試性能參數, 完成氣囊部品靜態展開測試平臺的搭建, 提

升了氣囊部品靜態展開測試的準確性, 能夠為氣囊設計以及生產提供準確的氣囊靜態展開性能參數以及檢測技術支持。

關鍵詞: 氣囊部品; 靜態展開; 靜態參數; 測試平臺

中圖分類號: 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

變速器高速嘯叫問題的分析與改進

童啟明, 雷江泉, 杜天義

(江鈴汽車股份有限公司, 江西南昌 330000)

摘要: 變速器作為汽車的核心零部件, 對變速器的研究直接影響到整車的NVH 水平, 在整車開發過程中變速器NVH 性能為

整車性能的一個重要指標。對變速器傳遞路徑的機制進行了分析, 并制定了變速器殼體增加加強筋和優化變速器齒形參數的方案。

經過仿真分析、主觀駕評、客觀測試均證明車內階次噪聲改善明顯, 該方法能夠有效解決變速箱嘯叫問題。

關鍵詞: 變速器; 嘯叫; 階次噪聲; 傳遞誤差

中圖分類號: 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

轎車后排路噪問題分析與改進

許靜超, 黃劍鋒, 白龍, 張志達, 謝然

(廣州汽車集團汽車工程研究院NVH 部, 廣東廣州 511434)

摘要: 為了解決勻速后排路噪超標問題, 對底盤懸架車身接附點振動進行了調查, 測試結果表明后減振器與車身接附點z 向

對應后排路噪峰值頻率處振動偏大。為了有針對性地優化減振器阻尼力降低減振器上安裝點對車身的振動激勵, 自主設計了后減

振器工作速度測試方法。利用測試數據提取得到的減振器速度特性曲線, 優化該工作速率段減振器阻尼力并進行了實車驗證。結

果表明: 優化措施改善了該工況路噪水平, 達到了目標要求。

關鍵詞: 路噪; 減振器; 位移測試

中圖分類號: 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

十輻Y 字型輪轂鋁合金車輪設計及有限元分析

麻春輝

(承德石油高等?？茖W校汽車工程系, 河北承德 067000)

摘要: 設計了一種十輻Y 字型輪轂車輪并運用SolidWorks 建立三維模型, 分析并計算車輪的受力情況作為邊界條件, 將模型

簡化后導入ANSYS Workbench, 利用CAE 分析技術對輪轂的整體結構、強度等方面進行了研究。經過載荷計算和有限元分析發現

輪輻根部的連接處是最容易出現疲勞的部位, 其次是螺栓孔和中心孔由于在轉動過程中經常受預緊力和彎矩也很容易出現疲勞。

在改進輪轂結構時, 可以在螺栓孔之間安置徑向加強筋或者增加輪輻的厚度來提高輪轂的疲勞壽命, 經分析驗證了該設計方案的

可行性。為后續的進一步優化改進及模態分析、疲勞分析提供參考。

關鍵詞: 鋁合金車輪; 結構設計; 有限元方法; 強度分析

中圖分類號: 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

自動變速器內部固定機構研究

李佳朦, 張東亮, 姚文博, 譚艷軍, 林霄喆

(寧波上中下自動變速器有限公司, 浙江寧波 315800)

摘要: 結合某雙離合自動變速器(DCT) 殼體設計時出現的案例, 根據CAE 分析結果對影響因素進行探討。結果表明, 增加

駐車壓板與駐車軸間隙, 能從根源上改變作用力的傳遞方向, 可有效減小作用在定位銷上的作用力。通過有限元分析, 對駐車濫

用工況及駐車30%坡度情況下, 不同駐車軸與駐車壓板間隙時變速器殼體上相應的安裝孔及定位銷孔的應力和應變進行了仿真,

仿真分析表明: 應力和應變控制在合理設計范圍內, 提高了變速器設計的可靠性。

關鍵詞: 自動變速器; 駐車機構; CAE 分析; 可靠性

中圖分類號: 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