航空学报 > 1985, Vol. 6 Issue (2): 128-134

云纹方法中一种新的试件栅拷贝技术

冯佩璋, 王惠茹   

  1. 飞机结构强度研究所
  • 收稿日期:1984-05-30 修回日期:1900-01-01 出版日期:1985-04-25 发布日期:1985-04-25

A NEW TECHNIQUE OF SPECIMEN GRATING COPY IN MOIRE METHOD

Feng Peizhang, Wang Huiru   

  1. Aircraft Structural Mechanics Institute
  • Received:1984-05-30 Revised:1900-01-01 Online:1985-04-25 Published:1985-04-25

摘要:

本文介绍了一种新的试件栅拷贝技术,结合空间虑波,条纹倍增及光学图像处理技术,可以测定轴、旋翼、柱壳及锥壳等曲表面裂纹尖端附近弹塑性应变场。该方法甚至还可以适用于转动的轴、飞轮和旋翼等表面应变场的测量。

Abstract:

A new technique of specimen grating copy is introduced in this paper. In combination with the techniques of space filtering, fringe multiplication and optical pattern handling, it can measure the elastic-plastic strain field at the crack tip in a curved surface, such as the surface of an axle, a pivoting wing, a pillar shell or a cone shell. This new technique even can be employed to measure the surface strain field in a rotary wing, a rotary axle or a flywheel.