基于形状因子的螺栓紧固力超声检测方法研究

doi:10.3969/j.issn.1000-1093.2019.04.024

兵工学报 ›› 2019, Vol. 40 ›› Issue (4): 880-888.doi: 10.3969/j.issn.1000-1093.2019.04.024

基于形状因子的螺栓紧固力超声检测方法研究

潘勤学，邵唱，肖定国，潘瑞鹏，刘晓豪

(北京理工大学机械与车辆学院, 北京 100081)

收稿日期:2018-06-04 修回日期:2018-06-04 上线日期:2019-06-10
作者简介:潘勤学(1981—)，男，副教授，硕士生导师。 E-mail: panqx@bit.edu.cn
基金资助:
国家国防科技工业局技术基础科研项目（JSZL2017602B002）

Study of Ultrasonic Measurement Method for Bolt Fastening Force Based on Shape Factor

PAN Qinxue， SHAO Chang， XIAO Dingguo， PAN Ruipeng， LIU Xiaohao

(School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081，China)

Received:2018-06-04 Revised:2018-06-04 Online:2019-06-10

摘要/Abstract

摘要： 针对螺栓轴向应力分布不均匀对现有螺栓紧固力超声检测模型的影响，以及模型中关键参数难以确定的问题，提出螺栓形状因子概念和确定方法。建立基于形状因子和材料因子的螺栓紧固力超声检测模型，分析了温度对检测系数和超声传播时间变化量的影响。通过有限元仿真与实验标定相结合方法，获得了45号钢的材料因子和M20、M16标准粗牙全螺纹螺栓的形状因子。使用标定参数对螺栓试样进行紧固力测量实验，测量结果和预置紧固力吻合良好，验证了该方法的有效性和可靠性。

关键词: 螺栓紧固力, 有限元, 超声检测, 形状因子

Abstract: For the influence of the nonuniform distribution of axial stress on the existing ultrasonic measurement model and the difficulty to determinate the key parameters in the model, the concept and determination method of bolt shape factor are proposed, and an ultrasonic measurement model for bolt fastening force based on shape factor is established. On the basis of the proposed model, the influence of temperature on detection coefficient and acoustic time difference is analyzed. The material factor of 45# steel, and the shape factors of M20 and M16 standard full thread bolts are obtained through finite element simulation and experimental calibration. The fastening forces of bolt samples were measured with the calibration parameters. The measured results are in good agreement with the preset fastening force, which verifies the validity and reliability of the method. Key

Key words: boltfasteningforce, finiteelement, ultrasonicmeasurement, shapefactor

中图分类号:

TB553

潘勤学，邵唱，肖定国，潘瑞鹏，刘晓豪. 基于形状因子的螺栓紧固力超声检测方法研究[J]. 兵工学报, 2019, 40(4): 880-888.

PAN Qinxue， SHAO Chang， XIAO Dingguo， PAN Ruipeng， LIU Xiaohao. Study of Ultrasonic Measurement Method for Bolt Fastening Force Based on Shape Factor[J]. Acta Armamentarii, 2019, 40(4): 880-888.

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基于形状因子的螺栓紧固力超声检测方法研究

Study of Ultrasonic Measurement Method for Bolt Fastening Force Based on Shape Factor

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