CAJ | 학술논문

在刚性转子动平衡修正中，对有效的振动信号进行检测和提取是直接关系到后期计算与动平衡修正效果好坏的最关键的一个环节，谐波小波具有良好的盒形谱特性、存在明确的函数表达式、时域定位准确和算法实现简单等优点，而在谐波小波的基础上实现的谐波小波包算法既拥有谐波小波的优点，并且还能对分析频段进行任意的划分，以便提取和分析更加细致的信息，通过模拟给出了采样信号，并使用谐波小波包算法对采样信号进行滤波处理，有效地滤除了干扰信号，最终成功地提取到了目标振动信号。
재강성전자동평형수정중，대유효적진동신호진행검측화제취시직접관계도후기계산여동평형수정효과호배적최관건적일개배절，해파소파구유량호적합형보특성、존재명학적함수표체식、시역정위준학화산법실현간단등우점，이재해파소파적기출상실현적해파소파포산법기옹유해파소파적우점，병차환능대분석빈단진행임의적화분，이편제취화분석경가세치적신식，통과모의급출료채양신호，병사용해파소파포산법대채양신호진행려파처리，유효지려제료간우신호，최종성공지제취도료목표진동신호。
In rigid rotor dynamic balance correction,the effective vibration signal detection and extraction are the most criti?cal link which are related to the later calculation and dynamic balance correction effect directly. The harmonic wavelet has ad?vantages of good box?like spectrum characteristic,explicit function expression,accurate positioning in time domain and simple algorithm realization. The harmonic wavelet packet algorithm based on harmonic wavelet has advantages of harmonic wavelet and can divide any analyzed frequency band arbitrarily for extraction and analysis of the more detailed information. The simulated sample signal is provided in this paper. The filtering processing for the sample signal is proceeded by harmonic wavelet packet algorithm to filter out the interference signals effectively. The target vibration signal was extracted successfully.