涂镀层厚度检测设备检测臂的仿真分析
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摘要
为提高涂镀层厚度检测设备检测臂工作时的可靠性,采用ANSYS对涂镀层厚度自动检测设备的检测臂进行模态分析,得到其前6阶固有频率和振型,并通过实验验证了模态信息的可靠性,随后通过对仿真及实验模态的振型形变分析确定了对检测臂稳定性影响最大的位置。为提高检测臂的稳定性,在检测臂的检测端加装减振器并在ADAMS中进行运动学仿真来验证减振器的减振性能。通过分析可知:文中设计的减振器能实现10%的减振效果,为消除振动对该类设备可靠性方面的影响提供了理论依据。
In order to improve the reliability of the inspection arm of the coating thickness detecting device, the modal analysis of the detection arm of the coating thickness automatic detecting device is carried out by ANSYS, and the first six natural frequencies and vibration modes of the detection arm of the coating thickness automatic detecting device are obtained. The reliability of the modal information is verified by experiments, the position that has the greatest influence on the stability of the detection arm is determined based on the analysis of the shape deformation of the simulation and experimental modes. Finally, a shock absorber is installed at this position and kinematics simulation is carried out in ADAMS to verify the vibration absorption performance of the shock absorber. The results show that the damper designed can achieve 10% damping effect, provide a theoretical basis for eliminating the influence of vibration on the reliability of such equipment.
In order to improve the reliability of the inspection arm of the coating thickness detecting device, the modal analysis of the detection arm of the coating thickness automatic detecting device is carried out by ANSYS, and the first six natural frequencies and vibration modes of the detection arm of the coating thickness automatic detecting device are obtained. The reliability of the modal information is verified by experiments, the position that has the greatest influence on the stability of the detection arm is determined based on the analysis of the shape deformation of the simulation and experimental modes. Finally, a shock absorber is installed at this position and kinematics simulation is carried out in ADAMS to verify the vibration absorption performance of the shock absorber. The results show that the damper designed can achieve 10% damping effect, provide a theoretical basis for eliminating the influence of vibration on the reliability of such equipment.
引文
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[2] 侯蓉, 徐光, 戴方钦,等. 镀层厚度对热镀锌热轧板耐蚀性的影响[J]. 材料保护, 2017, 50(6):5-8.
[3] BOTROS Y Y, VOLAKIS J L. Perfectly matched layer termination for finite‐element meshes: Implementation and application[J].Microwave & Optical Technology Letters,2015,23(3):166-172.
[4] 黄志强, 李刚, 陶知非,等. 可控震源振动器有限元模态分析与试验验证[J]. 工程设计学报, 2017(5):530-535.
[5] 李长玉, 李细霞. 某机床计算模态分析及其实验验证[J]. 组合机床与自动化加工技术, 2017(2):34-36.
[6] 郝凯强,平雪良,李巍.基于Pro/E和Workbench的炉窑直角搬运机器人结构设计与分析[J].机械传动,2014,38(7):100-103.
[7] 伍建军, 汪辉, 欧阳丹,等. 精密定位平台柔性支撑杆屈曲分析[J]. 组合机床与自动化加工技术, 2017(6):26-29.
[8] 陈果,程小勇,刘明华,等.用于管道减振的新型动力吸振器[J].中国机械工程,2014,25(23):3125-3131.