摘要
为探究圆柱滚子轴承在计入套圈柔性条件下外圈载荷的分布规律,建立了基于刚体套圈理论的力学模型和计入套圈柔性的有限元模型,求解并分析了套圈为柔性和刚性时不同载荷及转速下外圈载荷分布、应力应变及振动的变化规律.结果表明:在计入套圈柔性下,随着载荷的增加,轴承的承载数目由理论的四滚子承载变为六滚子承载,外圈的接触应力值小于相同时刻只计入四滚子承载时的接触应力值,外圈承载区域的增加趋势与接触刚度一致且趋向于对称分布.随着转速的增加,外圈的承载区域呈线性增加且向左偏移.载荷是影响轴承振动的主要因素,柔性套圈下的轴承振动值大于刚性套圈下的振动值.
In order to explore the distribution law of outer ring load of cylindrical roller bearings with fexible ring,a mechanical model based on rigid body ring theory and a finite element model with fexible ring were established,and the load distribution,stress-strain and vibration changes of outer ring under different loads and rotation speeds were solved and analyzed.The results show that,with the fexibility of the ring included,the bearing number changes from the theoretical four-roller load to six-roller load with the increase of load,and the contact stress of the outer ring is less than the stress value when only the four-roller load is counted at the same time.The increasing trend of the bearing area of the outer ring is consistent with the contact stiffness and tends to be symmetrical distribution.As the rotational speed increases,the bearing area of the outer ring increases linearly and shifts to the left.The load is the main factor affecting the bearing vibration.The bearing vibration value under the fexible ring is bigger than that under the rigid ring.
作者
周恒宇
周建星
金鹏程
余鹏飞
刘国春
ZHOU Hengyu;ZHOU Jianxing;JIN Pengcheng;YU Pengfei;LIU Guochun(School of Mechanical Engineering,Xinjiang University,Urumqi Xinjiang 830017,China)
出处
《新疆大学学报（自然科学版）（中英文）》
CAS
2023年第3期373-379,共7页
Journal of Xinjiang University(Natural Science Edition in Chinese and English)
基金
新疆维吾尔自治区重点研发计划项目“基于工业大数据的风电装备数字孪生关键技术研发与应用示范”(2021B01003-1)
新疆维吾尔自治区自然科学基金“面向损伤演化过程的风电机组主传动链多场性能研究”(2021D01C050)。
关键词
圆柱滚子轴承
套圈柔性
有限元模型
承载区域
cylindrical roller bearing
flexible ring
finite element model
bearing area
作者简介
周恒宇(1994-),男,硕士生,从事轴承动态特性的研究,E-mail:2216339781@qq.com;通讯作者:周建星(1982-),男,博士,教授,主要从事机械系统动力学的研究,E-mail:jianzhou82823@163.com.
