机床回转工作台变形全局可靠性灵敏度分析

doi:10.13229/j.cnki.jdxbgxb.20230947

吉林大学学报(工学版) ›› 2025, Vol. 55 ›› Issue (6): 1906-1914.doi: 10.13229/j.cnki.jdxbgxb.20230947

机床回转工作台变形全局可靠性灵敏度分析

黄贤振^1,²(),马明斐¹,李超¹,王旭¹,荣治明³()

^1.东北大学机械工程与自动化学院，沈阳 110819
^2.东北大学航空动力装备振动及控制教育部重点实验室，沈阳 110819
^3.大连海洋大学应用技术学院，辽宁大连 116399

收稿日期:2023-09-06 出版日期:2025-06-01 发布日期:2025-07-23
通讯作者: 荣治明 E-mail:xzhhuang@mail.neu.edu.cn;rongzhiming@dlou.edu.cn
作者简介:黄贤振（1982-），男，教授，博士.研究方向：机械与系统可靠性.E-mail：xzhhuang@mail.neu.edu.cn
基金资助:
国家自然科学基金项目(U23B2098);国家自然科学基金项目(U22B2087);辽宁省应用基础研究计划项目(2023JH2/101300160)

Global reliability sensitivity analysis of deformation for machine tool rotary table

Xian-zhen HUANG^1,²(),Ming-fei MA¹,Chao LI¹,Xu WANG¹,Zhi-ming RONG³()

^1.School of Mechanical Engineering and Automation，Northeastern University，Shenyang 110819，China
^2.Key Laboratory of Vibration and Control of Aero-Propulsion Systems Ministry of Education of China，Northeastern University，Shenyang 110819，China
^3.Apllied Technology College of Dalian Ocean University，Dalian 116399，China

Received:2023-09-06 Online:2025-06-01 Published:2025-07-23
Contact: Zhi-ming RONG E-mail:xzhhuang@mail.neu.edu.cn;rongzhiming@dlou.edu.cn

摘要/Abstract

摘要：

针对机床加工过程中，回转工作台会因承受较大载荷而产生变形，进而影响加工精度和一致性的问题，提出了一种考虑随机因素影响的回转工作台变形行为的可靠性分析模型，将回转工作台视为系统，以回转工作台最大变形是否超过允许值为判别条件进行可靠性分析，探究了在不同载荷作用下，整个系统的全局可靠性变化规律，随后计算了各参数对系统失效现象的全局灵敏度。研究结果表明：工作台板、回转座、滑座的材料参数对回转工作台系统可靠性影响较大，其中弹性模量的灵敏度指标大于密度，泊松比最小。

关键词: 机械设计, 机床回转工作台, 静力学, 可靠性, 灵敏度

Abstract:

In view of the problem that the rotary table will deform due to bearing large loads during machine tool processing， which will affect the processing accuracy and consistency，this paper proposes a reliability analysis model for the deformation behavior of the rotary table that considers the influence of random factors. The model treats the rotary table as a system， and uses the maximum deformation of the rotary table as the criterion for reliability analysis. The study explores the global reliability changes of the entire system under different load conditions and calculates the global sensitivity of each parameter to system failure. The results indicate that the material parameters of the table plate， rotary seat， and sliding seat have a significant impact on the reliability of the rotary table system， with the sensitivity index of the elastic modulus being greater than that of density and Poisson's ratio being the smallest.

Key words: mechanical design, machine tool rotary table, statics, reliability, sensitivity

中图分类号:

TG659

黄贤振,马明斐,李超,王旭,荣治明. 机床回转工作台变形全局可靠性灵敏度分析[J]. 吉林大学学报(工学版), 2025, 55(6): 1906-1914.

Xian-zhen HUANG,Ming-fei MA,Chao LI,Xu WANG,Zhi-ming RONG. Global reliability sensitivity analysis of deformation for machine tool rotary table[J]. Journal of Jilin University(Engineering and Technology Edition), 2025, 55(6): 1906-1914.

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零件	材料	质量/kg
工作台板	HT300	188
回转座	HT300	150
滑座	HT300	580
鼠牙盘	38CrMoAlA	20×2
分油轴	45	13.7
活塞	45	39
油缸体	45	62
油缸端盖	45	5.6
蜗轮	ZQSn10-1	29.6
蜗杆	38CrMoAlA	9.2
转台轴承	GCR15SiMn	25

参数	数值	分布	变异系数
ρ₁/（kg·m^-3）	7 850	正态分布	0.05
E₁/GPa	212.5	正态分布	0.05
μ₁	0.29	正态分布	0.05
ρ₂/（kg·m^-3）	7 850	正态分布	0.05
E₂/GPa	210	正态分布	0.05
μ₂	0.28	正态分布	0.05
ρ₃/（kg·m^-3）	7 200	正态分布	0.05
E₃/GPa	110	正态分布	0.05
μ₃	0.28	正态分布	0.05

机床回转工作台变形全局可靠性灵敏度分析

Global reliability sensitivity analysis of deformation for machine tool rotary table

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