Size Optimal Design of an Internal Grinding Machine based on Stiffness Analysis

被引：0
作者：
Park S.H. [1 ]
Ko H.B. [1 ]
Kang H.L. [1 ]
Han S.H. [1 ]
机构：
[1] Dept. of Mechanical Engineering, Dong-A Univ.
来源：
Transactions of the Korean Institute of Electrical Engineers | 2022年 / 71卷 / 05期
关键词：
Dynamic Stiffness; Internal Grinding Machine; Response Surface Model; Size Optimal Design; Static Stiffness; Wheel Bearing;
D O I：
10.5370/KIEE.2022.71.5.708
中图分类号：
学科分类号：
摘要：
The internal grinding machine is a precision grinder used when producing the outer race of automobile wheel bearings, whose surface roughness should be ensured within a 0.6μm. A machining procedure with such precision is affected significantly by the structural rigidity of grinding wheel set and support structure. The structural rigidity parameters, such as static and dynamic stiffness, are crucial in high efficiency grinding to ensure a high accuracy surface roughness. Therefore, it is necessary to ensure the sufficient static and dynamic stiffness of the grinding wheel set and support structure, in which a lightweight design should be carried out via a size optimal design technique. In this study, a dynamic analysis was conducted to evaluate the static and dynamic stiffness parameters of the support structure for the internal grinding machine. These stiffness parameters were estimated numerically using the static and dynamic compliances obtained through the dynamic analysis under harmonic excitation. The size optimal design was carried out to identify the optimal design variables, such as a thickness of 43 ribs in the support structure, while the static and dynamic stiffness parameters required for a precision machining were maintained at 200 and 37N/μm, respectively. The result of the lightweight design indicated that the weight of the support structure was decreased approximately 10% compared with that of the initial design. © 2022 The Korean Society of Mechanical Engineers.
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页码：461 / 469
页数：8
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