任旭东,汪舟,卢伟,罗素晖,王晓丽,邓小云,刘浩均,郑世祺,张旭.基于FEM–DEM的空心稳定杆内壁喷丸仿真分析[J].表面技术,2023,52(1):410-420.
REN Xu-dong,WANG Zhou,LU Wei,LUO Su-hui,WANG Xiao-li,DENG Xiao-yun,LIU Hao-jun,ZHENG Shi-qi,ZHANG Xu.FEM-DEM Simulation on Innner Wall Shot Peening of Hollow Stabilizer Bar[J].Surface Technology,2023,52(1):410-420 |
| 基于FEM–DEM的空心稳定杆内壁喷丸仿真分析 |
| FEM-DEM Simulation on Innner Wall Shot Peening of Hollow Stabilizer Bar |
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| DOI：10.16490/j.cnki.issn.1001-3660.2023.01.042 |
| 中文关键词: 空心稳定杆喷丸 FEM–DEM耦合仿真 模型简化 喷丸参数 残余应力分布 |
| 英文关键词:shot peening for hollow stabilizer bar FEM-DEM coupling simulation model simplification SP parameters residual stress distribution |
| 基金项目:校企合作项目(20211h0038) |
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| Author | Institution |
| REN Xu-dong | School of Automotive Engineering, Hubei Key Laboratory of Modern Automotive Components, Wuhan University of Technology, Hubei 430070, China |
| WANG Zhou | School of Automotive Engineering, Hubei Key Laboratory of Modern Automotive Components, Wuhan University of Technology, Hubei 430070, China;Hubei Collaborative Innovation Center of Automobile Parts Technology, Wuhan 430070, China |
| LU Wei | Guangzhou Huade Automotive Spring Co., Ltd., Guangzhou 511339, China |
| LUO Su-hui | Guangzhou Huade Automotive Spring Co., Ltd., Guangzhou 511339, China |
| WANG Xiao-li | School of Automotive Engineering, Hubei Key Laboratory of Modern Automotive Components, Wuhan University of Technology, Hubei 430070, China;Hubei Collaborative Innovation Center of Automobile Parts Technology, Wuhan 430070, China |
| DENG Xiao-yun | Guangzhou Huade Automotive Spring Co., Ltd., Guangzhou 511339, China |
| LIU Hao-jun | Guangzhou Huade Automotive Spring Co., Ltd., Guangzhou 511339, China |
| ZHENG Shi-qi | School of Automotive Engineering, Hubei Key Laboratory of Modern Automotive Components, Wuhan University of Technology, Hubei 430070, China |
| ZHANG Xu | School of Automotive Engineering, Hubei Key Laboratory of Modern Automotive Components, Wuhan University of Technology, Hubei 430070, China |
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| 中文摘要: |
| 目的 建立有限元–离散元耦合的喷丸模型，研究喷丸参数对空心稳定杆内壁残余应力场的影响规律。方法 基于ABAQUS有限元分析软件和“先整体后局部”的建模方法，建立26MnB5钢空心稳定杆全段和局部FEM–DEM喷丸模型，并对模型进行残余应力验证。通过局部喷丸模型研究弹丸撞击角度、速度、表面覆盖率和喷丸流量对稳定杆第4弯折处内壁残余应力场分布的影响规律。结果 残余应力场分布的实验值与仿真值的误差在7%以内，验证了模型的准确性。随着弹丸撞击角度的增大，最大残余应力和残余压应力层深也会随之增大，并在60°后达到饱和;当弹丸速度为80 m/s和100 m/s且弹丸数量为1∶1时，表面残余应力和最大残余应力分别约为−926 MPa和−1 309 MPa;随着弹丸覆盖率的增大，表面残余应力和最大残余应力均增大，但增幅变缓，在覆盖率为200%后基本达到饱和;随着喷丸流量的增大，表面残余应力和最大残余应力先增大后减小，在1.2 kg/min时达到最大值，分别约为−649 MPa和−1 049 MPa。结论 基于FEM–DEM的空心稳定杆内壁喷丸模型能够很好地预测残余应力场的分布，该研究为空心稳定杆内壁喷丸工艺的数值模拟提供了研究思路和理论支持。 |
| 英文摘要: |
| The transverse stabilizer bar is the key safety part in the suspension system of automobile. As a typical component affected by fatigue force, its performance is very important for driver's comfort, safety and handling stability in driving. Therefore, improving the fatigue performance of the stabilizer bar is very important to extend and reduce the service time and failure risk of the stabilizer bar. As a mechanical surface strengthening method widely used in industrial production, shot peening has become an essential process in the production process of stabilizer bar because of its obvious effect on fatigue life improvement. |
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