平面焊接残余应力九极磁测探头仿真分析

基金项目:

国家科技支撑计划资助项目(2009BAK58B02)

江苏省科技厅资助项目(BK2010503，BZ200951)

详细信息

Simulation Analysis of Nine Pole Magnetic Sensors of Flat Welding Residual Stress

摘要: 焊接残余应力的磁测法是近年来发展的一种新方法，其磁测的关键在于传感器的设计。常规的传感器为二极或四极，测量误差较大。试验采用了九极传感器，测量时不需要旋转，减少了测量误差。采用高磁导率材料作探头，通过电磁仿真，优化了探头的结构、外形及线圈激励匝数，并对影响因素进行分析。九极传感器为残余应力的快速测量提供了一种先进手段。
- 平面焊接 /
- 残余应力 /
- 切应力差法 /
- 九足探头
Abstract: Magnetic welding residual stress measurement method is a new method developed in the recent years. The key to the residual stress measurement is magnetic sensor design. It has large measurement error at the conventional sensor with two or four poles. In this paper, the sensor with nine poles could reduce the measurement error and was not needed need to rotate when the measurements were done. With the high permeability material and the electromagnetic simulation, the structure, shape and number of turns of the probe were optimized. The affecting factors were also analyzed. The nine-pole-sensor provided an advanced means for the fast residual stress measurement
- Flat welding /
- Residual stress /
- Difference method of shear stress /
- Nine pole magnetic sensors

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