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The gap between the rotor and the ball bearing in a wide temperature range increases with the increase in temperature. At the same time, the internal clearance of the bearing changes with the temperature. The inner ring of the bearing is subject to increased friction torque, which reduces its speed. This results in the deviation of the characteristic frequency of the outer ring defect, which is not conducive to the fault diagnosis of the ball bearing and the stable operation of the equipment. Considering the temperature-variable gap between the rotor and the bearing, a dynamic model of the bearing with an outer ring defect in a wide temperature range was established. The time-domain waveform and frequency of the model were analyzed. The simulation and test results show that the bearing vibration increases with the temperature, and the characteristic frequency of the outer ring defect decreases with the increasing temperature. Properly increasing the interference between the rotor and the bearing according to process requirements is beneficial for reducing the bearing system vibration in a wide temperature range and improving the accuracy of bearing defect frequency identification. The results provide reference for the use and health monitoring of ball bearings in a wide temperature range.
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宽温域内轴与球轴承间的间隙随温度升高而增大,同时轴承内部间隙也随温度变化而变化,轴承内圈受到增大的摩擦力矩,使内圈转速降低,从而导致外圈缺陷特征频率出现偏差,不利于球轴承的故障诊断和设备的稳定运行。考虑轴与轴承间的温变间隙,建立了宽温域内含外圈缺陷的轴承动力学模型,分析了模型的时域波形和频谱。仿真和试验结果表明,轴承振动随温度升高而加剧,外圈缺陷特征频率随温度升高而降低。根据工艺要求,适当增加轴与轴承间的过盈量,有利于降低宽温域内轴承系统的振动,提高轴承缺陷频率识别的准确性。研究结果为球轴承在宽温域的使用和健康监测提供了参考。
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, authorsList=夏冰新, 王丹, 商丽, 范磊, 邢智慧, 高国伟)}, authors=[Author(id=1228282207089914874, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=17604136033@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1228282207198966785, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, authorId=1228282207089914874, language=EN, stringName=Bingxin XIA, firstName=Bingxin, middleName=null, lastName=XIA, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=School of Mechanical Engineering, Shenyang Urban Construction University, Shenyang 110167, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1228282207287046147, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, authorId=1228282207089914874, language=CN, stringName=夏冰新, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=沈阳城市建设学院 机械工程学院,沈阳 110167, bio={"content":"
夏冰新,女,1988年生,辽宁抚顺人,硕士,讲师;主要研究方向为故障诊断;E-mail:17604136033@163.com。
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夏冰新,女,1988年生,辽宁抚顺人,硕士,讲师;主要研究方向为故障诊断;E-mail:17604136033@163.com。
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25(2):25-27.(In Chinese), articleTitle=Study on thermal deformation of hollow piece in steady temperature field, refAbstract=null)], funds=[Fund(id=1228282215876981033, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, awardId=LJKXM202109, language=EN, fundingSource=Foundation of Liaoning Provincial Department of Education(LJKXM202109), fundOrder=null, country=null), Fund(id=1228282215944089900, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, awardId=LJKXM202109, language=CN, fundingSource=辽宁省教育厅基金项目(LJKXM202109), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1228282206964085740, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, xref=null, ext=[AuthorCompanyExt(id=1228282206972474349, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, companyId=1228282206964085740, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Mechanical Engineering, Shenyang Urban Construction University, Shenyang 110167, China), AuthorCompanyExt(id=1228282206980862959, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, companyId=1228282206964085740, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=沈阳城市建设学院 机械工程学院,沈阳 110167)])], figs=[ArticleFig(id=1228282211397464258, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Fig.1, caption=
Model of the ball bearing-rotor system, figureFileSmall=UBmKG5sgU5p1jhLa6gWQJA==, figureFileBig=si72ss7sTJPts+Ts0QDRaw==, tableContent=null), ArticleFig(id=1228282211485544647, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=图1, caption=
球轴承-转子系统模型, figureFileSmall=UBmKG5sgU5p1jhLa6gWQJA==, figureFileBig=si72ss7sTJPts+Ts0QDRaw==, tableContent=null), ArticleFig(id=1228282211699454162, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Fig.2, caption=
Bearing-rotor system and simplified model of the deformed rotor, figureFileSmall=PPBHS6AtpoX3IUI9BwzRaw==, figureFileBig=wipqmNktnpSgcd3vn6ud8w==, tableContent=null), ArticleFig(id=1228282211800117463, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=图2, caption=
轴承-转子系统及转子变形的简化模型, figureFileSmall=PPBHS6AtpoX3IUI9BwzRaw==, figureFileBig=wipqmNktnpSgcd3vn6ud8w==, tableContent=null), ArticleFig(id=1228282213192626395, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Fig.3, caption=
Contact model between the rotor and the bearing inner ring after the thermal deformation, figureFileSmall=jJguPFoJ6XhZNq8ntM3iXw==, figureFileBig=M1VZJMcw+B6pA9G62xxYlA==, tableContent=null), ArticleFig(id=1228282213360398561, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=图3, caption=
热变形后轴与轴承内圈的接触模型, figureFileSmall=jJguPFoJ6XhZNq8ntM3iXw==, figureFileBig=M1VZJMcw+B6pA9G62xxYlA==, tableContent=null), ArticleFig(id=1228282213448478948, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Fig.4, caption=
Model of the bearing with the outer ring defect, figureFileSmall=UvNH/0H7fKb0AD17Vqacfw==, figureFileBig=S/CCXrdUtnauwzrIDz26BA==, tableContent=null), ArticleFig(id=1228282213553336553, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=图4, caption=
含外圈缺陷的轴承模型, figureFileSmall=UvNH/0H7fKb0AD17Vqacfw==, figureFileBig=S/CCXrdUtnauwzrIDz26BA==, tableContent=null), ArticleFig(id=1228282213653999852, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Fig.5, caption=
Model of the outer ring with the defect, figureFileSmall=xqhWDRuPk83kQ9B31IuvJQ==, figureFileBig=tQ9jdXT9jeEI6SHfNV3BnQ==, tableContent=null), ArticleFig(id=1228282213779828977, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=图5, caption=
外圈缺陷模型, figureFileSmall=xqhWDRuPk83kQ9B31IuvJQ==, figureFileBig=tQ9jdXT9jeEI6SHfNV3BnQ==, tableContent=null), ArticleFig(id=1228282213935018230, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Fig.6, caption=
Time domain waveform of the outer ring vibration, figureFileSmall=VUHGd3MCZvTgmBxsIB+b3Q==, figureFileBig=N96LUVtVTxtb3MsUwEHuEQ==, tableContent=null), ArticleFig(id=1228282214044070140, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=图6, caption=
外圈振动的时域波形, figureFileSmall=VUHGd3MCZvTgmBxsIB+b3Q==, figureFileBig=N96LUVtVTxtb3MsUwEHuEQ==, tableContent=null), ArticleFig(id=1228282214165704954, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Fig.7, caption=
Frequency spectrum of z-direction velocity signals in a wide temperature range of 100-500 K, figureFileSmall=l2cs1ce7FF/xLYphCHul7A==, figureFileBig=MtwH+eTYzQ36ZwnmDLRwRQ==, tableContent=null), ArticleFig(id=1228282214287339774, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=图7, caption=
100~500 K宽温域内z方向速度信号的频谱, figureFileSmall=l2cs1ce7FF/xLYphCHul7A==, figureFileBig=MtwH+eTYzQ36ZwnmDLRwRQ==, tableContent=null), ArticleFig(id=1228282214379614464, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Fig.8, caption=
Amplified frequency spectrum, figureFileSmall=vwPw++L9yrth/TC17Ti03Q==, figureFileBig=M5xPJWdxvlodhi3LQsc8lQ==, tableContent=null), ArticleFig(id=1228282214618689793, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=图8, caption=
放大频谱, figureFileSmall=vwPw++L9yrth/TC17Ti03Q==, figureFileBig=M5xPJWdxvlodhi3LQsc8lQ==, tableContent=null), ArticleFig(id=1228282214723547397, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Fig.9, caption=
Bearing fault simulation test bench, figureFileSmall=WC+azokrkkFNqEi28AJVkQ==, figureFileBig=TBsBgDoZp+ZZNVHSa4PgbQ==, tableContent=null), ArticleFig(id=1228282214811627784, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=图9, caption=
轴承故障模拟试验台, figureFileSmall=WC+azokrkkFNqEi28AJVkQ==, figureFileBig=TBsBgDoZp+ZZNVHSa4PgbQ==, tableContent=null), ArticleFig(id=1228282214891319565, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Fig.10, caption=
Test frequency spectrum of the bearing vibration with the outer ring defect, figureFileSmall=s9b7USjXEntiIJKwGUob6w==, figureFileBig=tF8eywHzWe1OGlv2eVFAYg==, tableContent=null), ArticleFig(id=1228282214975205646, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=图10, caption=
含外圈缺陷的轴承试验振动频谱, figureFileSmall=s9b7USjXEntiIJKwGUob6w==, figureFileBig=tF8eywHzWe1OGlv2eVFAYg==, tableContent=null), ArticleFig(id=1228282215084257556, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Tab.1, caption=
Structural and physical parameters of the bearing
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 Parameter | 值Value |
|---|
| 滚动体数量Number of rolling elements N | 8 |
| 滚动体直径Diameter of rolling elements db/mm | 7.937 5 |
| 轴承节径Bearing pitch diameter dm/mm | 33.477 2 |
| 轴承宽度Bearing width /mm | 15 |
| 轴承游隙Bearing clearance γ/μm | 10 |
| 内圈厚度Thickness of inner ring /mm | 10 |
| 轴承材料密度Bearing material density /(kg/m3) | 7 850 |
| 热变形系数Coefficient of thermal deformation λ/K-1 | 1.25×10-5 |
| 弹性模量Elastic modulus E/GPa | 210 |
| 阻尼系数Damping coefficient c | 500 |
), ArticleFig(id=1228282215189115160, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=表1, caption=
轴承的物理和结构参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 Parameter | 值Value |
|---|
| 滚动体数量Number of rolling elements N | 8 |
| 滚动体直径Diameter of rolling elements db/mm | 7.937 5 |
| 轴承节径Bearing pitch diameter dm/mm | 33.477 2 |
| 轴承宽度Bearing width /mm | 15 |
| 轴承游隙Bearing clearance γ/μm | 10 |
| 内圈厚度Thickness of inner ring /mm | 10 |
| 轴承材料密度Bearing material density /(kg/m3) | 7 850 |
| 热变形系数Coefficient of thermal deformation λ/K-1 | 1.25×10-5 |
| 弹性模量Elastic modulus E/GPa | 210 |
| 阻尼系数Damping coefficient c | 500 |
), ArticleFig(id=1228282215293972763, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Tab.2, caption=
Main results of the vibration of the outer ring in the wide temperature range
, figureFileSmall=null, figureFileBig=null, tableContent=
振动峰值 Vibration peak/(mm/s) | 温度Temperature/K |
|---|
| 100 | 300 | 500 |
|---|
| y方向y-direction | 0.013 4 | 0.055 8 | 0.116 7 |
| z方向z-direction | 0.058 6 | 0.085 2 | 0.103 1 |
), ArticleFig(id=1228282215377858843, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=表2, caption=
宽温域外圈振动的主要结果
, figureFileSmall=null, figureFileBig=null, tableContent=
振动峰值 Vibration peak/(mm/s) | 温度Temperature/K |
|---|
| 100 | 300 | 500 |
|---|
| y方向y-direction | 0.013 4 | 0.055 8 | 0.116 7 |
| z方向z-direction | 0.058 6 | 0.085 2 | 0.103 1 |
), ArticleFig(id=1228282215482716446, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Tab.3, caption=
Correlation frequency components in the amplified frequency spectrum
, figureFileSmall=null, figureFileBig=null, tableContent=
频率分量 Frequency component | 温度Temperature/K |
|---|
| 100 | 300 | 500 |
|---|
| fbpfo | 152.61 | 151.97 | 150.96 |
| 2fbpfo | 305.22 | 303.91 | 301.93 |
| 3fbpfo | 458.08 | 455.91 | 452.89 |
), ArticleFig(id=1228282215566602531, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=CN, label=表3, caption=
放大频谱中的相关频率分量
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频率分量 Frequency component | 温度Temperature/K |
|---|
| 100 | 300 | 500 |
|---|
| fbpfo | 152.61 | 151.97 | 150.96 |
| 2fbpfo | 305.22 | 303.91 | 301.93 |
| 3fbpfo | 458.08 | 455.91 | 452.89 |
), ArticleFig(id=1228282215646294307, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1228282194112737848, language=EN, label=Tab.4, caption=
Comparison between test results and simulation results
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温度 Temperature/K | 仿真结果 Simulation results/Hz | 试验结果 Test results/Hz |
|---|
| 100 | 152.61 | 152.24 |
| 300 | 151.97 | 150.82 |
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试验结果与仿真结果对比
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温度 Temperature/K | 仿真结果 Simulation results/Hz | 试验结果 Test results/Hz |
|---|
| 100 | 152.61 | 152.24 |
| 300 | 151.97 | 150.82 |
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