摘要
研究了瞬态波在非均匀损伤混凝土介质中的传播,将连续非均匀损伤混凝土介质进行分层均匀损伤的近似处理,利用波谱系数传递矩阵和信号处理手段,计算了3种典型损伤模型对近似脉冲输入信号的时域响应.计算结果表明,由于损伤的存在,将导致响应波的波幅增大,波形畸变,损伤越大,这种增大和畸变的影响程度越明显.
Transient wave propagation in inhonmogeneous damaged concrete media was investigated. The eontinuous inhomogneous damaged eoncrete media was approximately treated as stratiform homogeneous damage. Using spectra transfermatrix and signal processing, impulse responses of three typical damaged models were calculated. The calculation showed that the amplitude of response wave was aggrandized and the waveform was distorted due to damage,and the aggrandizement and distortion were more evident with the increase of damage.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第6期38-41,共4页
Journal of Hunan University:Natural Sciences
基金
湖南省自然科学基金资助项目(03JJY3008)
教育部科学技术研究重点资助项目(104137)
关键词
瞬态波
损伤
响应
transient wave
damage
response
