CAJ | 학술논문

提出了一种基于系统解卷积技术的波纹管压浆质量检测方法，利用系统分析技术结合解卷积补偿特性处理回波信号，并分析处理后的波形的首波响应时间，对缺陷的位置及大小做出判断。利用有限元进行了理论模拟仿真，采用系统解卷积技术处理并分析回波数据，结果表明解卷积后的波形的首波的响应时间与缺陷表面深度值存在一一对应关系。通过实际制作模型并进行实验测量，验证了仿真的结果。
제출료일충기우계통해권적기술적파문관압장질량검측방법，이용계통분석기술결합해권적보상특성처리회파신호，병분석처리후적파형적수파향응시간，대결함적위치급대소주출판단。이용유한원진행료이론모의방진，채용계통해권적기술처리병분석회파수거，결과표명해권적후적파형적수파적향응시간여결함표면심도치존재일일대응관계。통과실제제작모형병진행실험측량，험증료방진적결과。
A nondestructive test for corrugated pipe based on systemic de-convolution technique is proposed in this paper. The grouting compactness is estimated by this technique through processing the impact echo signals. The positions and size of defects can be obtained by analyzing the beginning time of the head wave in de-convolution results. A model containing 4 different defects is constructed and simulated by using finite element method. The simulation results demonstrate that the complex scattering signals caused by grouting defects are hardly to be distinguished. The collected impact-echo signals are processed by signal processing of systemic de-convolution. It is found that the surface depth of the defect is directly related to the beginning time of the head wave in de-convolution result. Several actual models are constructed and measured, and the results are consistent well with simulated prediction.