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[期刊论文] 作者:Xiang Jiawei,He Zhengjia,Chen,
来源:固体力学学报:英文版 年份:2006
在间隔(BSWI ) 上基于 B 花键小浪,截断的圆锥形的壳元素的二个班被构造解决 axisymmetric 问题,即 BSWI 薄截断的圆锥形的壳元素和 BSWI 有独立斜坡变丑插值的中等厚的截断的...
THE CONSTRUCTION OF WAVELET-BASED TRUNCATED CONICAL SHELL ELEMENT USING B-SPLINE WAVELET ON THE INTE
[期刊论文] 作者:Xiang Jiawei,He Zhengjia,Chen,
来源:固体力学学报(英文版) 年份:2004
Based on B-spline wavelet on the interval (BSWI), two classes of truncated conical shell elements were constructed to solve axisymmetric problems, i.e. BSWI thi...
NEW METHOD FOR WEAK FAULT FEATURE EXTRACTION BASED ON SECOND GENERATION WAVELET TRANSFORM AND ITS AP
[期刊论文] 作者:Duan Chendong,He Zhengjia,Jian,
来源:机械工程学报(英文版) 年份:2004
A new time-domain analysis method that uses second generation wavelet transform (SGWT) for weak fault feature extraction is proposed. To extract incipient fault...
[期刊论文] 作者:Cheng Wei,He Zhengjia,Zhang Zh,
来源:仪器仪表学报 年份:2013
It has been challenging to correctly separate the mixed signals into source components when the source number is not known a priori.To reveal the complexity of...
[期刊论文] 作者:Li Fucai, He Zhengjia, Zi Yany,
来源:国际设备工程与管理:英文版 年份:2000
几台工业计算机和一个服务器被联合安装联机监视和涡轮发电机集合的诊断系统。系统的主要功能到监视器机组的家运用状况。通过分析跑的数据,技术员能检测是否在那里存在差错并......
[期刊论文] 作者:CHEN Xuefeng,HE Zhengjia,LI Bi,
来源:黑龙江科技学院学报 年份:2006
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:LI Bing,CHEN Xuefeng,HE Zhengjia,,
来源:Chinese Journal of Mechanical Engineering 年份:2013
Multiple crack identification plays an important role in vibration-based crack identification of structures. Traditional crack detection method of single crack...
NEW METHOD FOR WEAK FAULT FEATURE EXTRACTION BASED ON SECOND GENERATION WAVELET TRANSFORM AND ITS AP
[期刊论文] 作者:Duan Chendong,He Zhengjia,Jiang Hongkai,
来源:机械工程学报(英文版) 年份:2004
A new time-domain analysis method that uses second generation wavelet transform (SGWT) for weak fault feature extraction is proposed. To extract incipient fault...
THE CONSTRUCTION OF WAVELET-BASED TRUNCATED CONICAL SHELL ELEMENT USING B-SPLINE WAVELET ON THE INTE
[期刊论文] 作者:Xiang Jiawei,He Zhengjia,Chen Xuefeng,
来源:黑龙江科技信息 年份:2006
本文通过对荣华二采区10...
[期刊论文] 作者:Cheng Wei,He Zhengjia,Zhang Zhousuo,,
来源:仪器仪表学报 年份:2013
It has been challenging to correctly separate the mixed signals into source components when the source number is not known a priori.To reveal the complexity of...
[期刊论文] 作者:CHEN Xuefeng,LI Bing,HE Yuming,HE Zhengjia,
来源:中国机械工程学报 年份:2010
The presence of cracks in the rotor is one of the most dangerous and critical defects for rotating machinery. Defect of fatigue cracks may lead to long out-of-s...
[期刊论文] 作者:CHEN YiMin,ZI YanYang,CAO HongRui,HE ZhengJia,SUN HaiLiang,,
来源:Science China(Technological Sciences) 年份:2014
Wavelet denoising is an effective approach to extract fault features from strong background noise.It has been widely used in mechanical fault detection and show...
Steam turbine rotor crack detection using sifting process of EMD and B-spline wavelet on the interva
[期刊论文] 作者:Chen Xuefeng,Yang Zhibo,Li Bing,Zi Yanyang,He Zhengjia,,
来源:Engineering Sciences 年份:2013
A high-precision identification method for steam turbine rotor crack is presented. By providing the first three measured natural frequencies,contours for the sp...
[期刊论文] 作者:ZHANG ChunLin,LI Bing,YANG ZhiBo,XIAO WenRong,HE ZhengJia,,
来源:Science China(Technological Sciences) 年份:2013
Crack location identification, as one key destination of structural health monitoring, is still a challenge for operating rotor systems. The operating deflectio...
Steam turbine rotor crack detection using sifting process of EMD and B-spline wavelet on the interva
[期刊论文] 作者:Chen Xuefeng,Yang Zhibo,Li Bing,Zi Yanyang,He Zhengjia,
来源:中国工程科学(英文版) 年份:2004
...
A pseudo wavelet system-based vibration signature extracting method for rotating machinery fault det
[期刊论文] 作者:CHEN BinQiang,ZHANG ZhouSuo,ZI YanYang,YANG ZhiBo,HE ZhengJia,,
来源:Science China(Technological Sciences) 年份:2013
The rotating machinery,as a typical example of large and complex mechanical systems,is prone to diversified sorts of mechanical faults,especially on their rotat...
Tunable Q-factor wavelet transform denoising with neighboring coefficients and its application to ro
[期刊论文] 作者:HE WangPeng,ZI YanYang,CHEN BinQiang,WANG Shuai,HE ZhengJia,,
来源:Science China(Technological Sciences) 年份:2013
Fault diagnosis of rotating machinery is of great importance to the high quality products and long-term safe operation.However,the useful weak features are usua...
[期刊论文] 作者:胡桥,HE,ZhengJia,訾艳阳,雷亚国,刘京科,
来源:机械强度 年份:2005
针对机电设备运行状态受多因素影响,变化趋势复杂,难以用单一预测方法进行有效预测的问题,提出一种新的基于改进灰色系统-支持向量机-神经模糊系统的智能混合预测模型.该模型...
Maximal-overlap adaptive multiwavelet for detecting transient vibration responses from dynastic sign
[期刊论文] 作者:HE ShuiLong,ZI YanYang,ZHAO ChenLu,CHEN BinQiang,WANG XiaoDong,HE ZhengJia,,
来源:Science China(Technological Sciences) 年份:2014
Vibration signal is an important prerequisite for mechanical fault detection.However,early stage defect of rotating machineries is difficult to identify because...
[会议论文] 作者:张虹,guigang li,bin li,zhiqi chen,ruilin wang,lingjuan xu,yan xiang,yanyan he,zhengjia li,
来源:中华医学会第十四次全国眼科学术大会 年份:2009
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