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Acoustics Based Monitoring and Diagnostics for the Progressive Deterioration of Helical Gearboxes

Chinese Journal of Mechanical Engineering 2021年第4期34卷 98-109页

作者： Kaibo Lu James Xi Gu Hongwei Fan xiuquan sun Bing Li Fengshou Gu College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan 030024China School of Engineering University of BoltonBolton BL35ABUK College of Mechanical Engineering Xi’an University of Science and TechnologyXi’an 710054China Centre for Efficiency and Performance Engineering University of HuddersfieldHuddersfield HD13DHUK. School of Industrial Automation Beijing Institute of TechnologyZhuhai 519088China

Gearbox condition monitoring(CM)plays a significant role in ensuring the operational reliability and efficiency of a wide range of critical industrial systems such as wind turbines and *** and timely diagnosis of gear faults will improve the maintenance of gearboxes operating under sub-optimal conditions,avoid excessive energy consumption and prevent avoidable damages to *** study focuses on developing CM for a multi-stage helical gearbox using airborne *** on signal phase alignments,Modulation Signal Bispectrum(MSB)analysis allows random noise and interrupting events in sound signals to be suppressed greatly and obtains nonlinear modulation features in association with gear *** coherence is evaluated for selecting the reliable bi-spectral peaks for indication of gear deterioration.A run-to-failure test of two industrial gearboxes was tested under various loading *** omnidirectional microphones were fixed near the gearboxes to sense acoustic information during *** has been shown that compared against vibration based CM,acoustics can perceive the responses of vibration in a larger areas and contains more comprehensive and stable information related to gear dynamics variation due to ***,the MSB magnitude peaks at the first three harmonic components of gear mesh and rotation components are demonstrated to be sufficient in characterizing the gradual deterioration of gear ***,the combining of MSB peaks with baseline normalization yields more accurate monitoring trends and diagnostics,allowing the gradual deterioration process and gear wear location to be represented more consistently.

关键词： Acoustics Modulation Signal Bispectrum Helical gearbox Gear wear

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Analyses of d-^(6,7)Li and d-^(7,9)Be Reactions

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Chinese journal of nuclear physics 1997年第2期19卷 103-109页

作者： Han Yinlu Shen Qingbiao Zhang Jingshang Liu Weiping Bai Xixiang China Institute of Atomic Energy,P.O.Box 275(41),Beijing 102413Zhang Zhengjun sun xiuquan Department of Physics,Northwest University,Xian 710069 中国原子能科学院北京西北大学物理系陕西西安

Aiming at the production of 6He,8Li and 7Be radioactive beams,various nuclear dataof d+6,7Li and d+9Be reactions at incident energies spanning 0,1～30.0 MeV are obtained bycalculation with the distorted wave Born approximation,preequilibrium nuclear reaction andHauser-Feshbach（HF）*** cross sections of d+7Be reaction are also *** show that the experimental measurement for d+7Be reaction is feasible at HI-13 tandemaccelerator.

关键词： ~6He ~8Li and ~7Be Radioactive beam

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在重离子碰撞中的K^-介子吸收对其产生的影响

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高能物理与核物理 2000年第1期24卷 49-59页

作者：李庆峰李祝霞孙秀泉中国原子能科学研究院北京102413 西北大学物理系西安710069

用ＲＢＵＵ方法研究了中高能重离子碰撞中Ｋ－介子产额及谱的情况．我们发现Ｋ＋／Ｋ－产额比是与核系统大小相关的，这种相关性与Ｋ－介子在核介质中所受的吸收效应有关．还研究了在三种不同核系统中的Ｋ平均吸收路程，发现Ｋ－平均... 详细信息

用ＲＢＵＵ方法研究了中高能重离子碰撞中Ｋ－介子产额及谱的情况．我们发现Ｋ＋／Ｋ－产额比是与核系统大小相关的，这种相关性与Ｋ－介子在核介质中所受的吸收效应有关．还研究了在三种不同核系统中的Ｋ平均吸收路程，发现Ｋ－平均吸收路程在轻核系统中与在中、重核系统中存在较大的差别，从而定量地解释了这种Ｋ＋／Ｋ－比与核系统的相关性．研究结果给出了核介质对Ｋ－介子的吸收程度还与不同反应道的贡献有关，这是导致Ｂπ→Ｋ－Ｘ道在核系统，特别是在轻、中量核系统中起重要作用的一个重要原因。

关键词：重离子碰撞 K^-介子吸收

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Analyses of d+16O and p+19F Reaction

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中国核科技报告 1997年第S2期 40-46页

作者： Han Yinlu Shen Qingbiao (China Nuclear Data Center, CIAE)Zhang Zhengjun sun xiuquan (Department of Physics, Northwest University, Shaanxi)

The nuclear data of d+O reaction at incident energies spanning 0.1 to 35.0 MeV were obtained by calculation with optical model, distorted wave Born approximation, preequilibrium nuclear reaction and Hauser-Feshbach th... 详细信息

关键词： F Reaction O and p Analyses of d

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Analysis and Prediction of the Cross Sections of d+~6Li and d+~7Be Reactions for Energy up to 30 MeV

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中国核科技报告 1997年第S3期 33-41页

作者： HanYinlu ShenQingbiao Zhang Jingshang (Chinese Nuclear Data Center, CIAE)Zhang Zhengjun sun xiuquan (Physics Department, Northwest University, Shannxi)

A set of deuteron optical potential parameters is obtained based on the relevant experimental data, and various nuclear data of d+~6Li reaction at incident energies spanning 0.1～30 MeV were calculated with the Distorted Wave Born Approximation, preequilibrium nuclear reaction and Hauser-Feshbach (HF) *** cross sections of d+~7Be reaction were predicted. The results show that the experimental measure- ment for d+~7Be reaction is feasible at HI-13 tandem accelerator.

关键词： Be Analysis and Prediction of the Cross Sections of d Reactions for Energy up to 30 MeV and d Li

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Calculation and Analysis of Neutron Induced Reaction on 185,187Re and NatRe

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中国核科技报告 1998年第S2期 49-57页

作者： Han Yinlu Yu Baosheng (China Nuclear Data Center, CIAE)Zhang Zhengjun sun xiuquan (Department of Physics, Northwest University, Shaanxi)

Based on the relevant experimental data of Re and neighbor nucleus W, and the theoretical model calculations, neutron induced reaction cross sections, the energy spectrum, angular distribution, double differential cross section and γ-production data were calculated forRe at incident neutron energies below 20 MeV. The calculated results were compared with experimental data.

关键词： Nat)Re Calculation and Analysis of Neutron Induced Reaction on

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Calculation of Neutron Induced Reactions on 105,108Pd in Energy from 0.05 to 20 MeV

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中国核科技报告 1998年第S2期 3-5页

作者： Zhang Zhengjun sun xiuquan Zhang Jianshu (Depart, of Physics, Northwest University, Shanxi)Han Yinlu Shen Qingbiao (China Nuclear Data Center, CIAE)

A set of neutron optical potential parameters for energy from 0.05 to 20 MeV is obtained on the basis of available experimental data ofpd and neighbor nuclei. Based on this set of optical potential parameters, all cross sections of neutron induced reaction onPd are calculated. The calculated results reproduce the experimental data well.

关键词： Pd in Energy from 0.05 to 20 MeV In Calculation of Neutron Induced Reactions on

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Calculation and Analysis of d+~7Li Reaction

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中国核科技报告 1997年第S3期 51-58页

作者： Han Yinlu Shen Qingbiao Zhang Jingshang (Chinese Nuclear data Center, CIAE)Zhang Zhengjun sun xiuquan (Physics Department, Northwest University, Shannxi)

The cross sections of d+~7Li reaction at incident energies spanning 0.1～30 MeV were obtained by calculation with the Distorted Wave Born approximation,preequi- librium nuclear reaction and Hauser-Feshbach (HF) theori... 详细信息

关键词： Li Reaction Be Calculation and Analysis of d

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Calculation of Neutron Induced Reaction on 103Rh in Energy from 0.002 to 25 MeV

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中国核科技报告 1996年第S2期 47-54页

作者： sun xiuquan Zhang Zhengjun (Department of Physics, Northwest University, Shaanxi)Han Yinlu Shen Qingbiao ( China Nuclear Data Center, CIAE )

A set of neutron optical potential parameters for the energy from 0.002 to 25 MeV is obtained on the basis of available experimental data. Based on this set of optical potential parameters, the elastic scattering angular distributions and all cross sections of neutron induced reaction on103Rh are calculated. The calculated results reproduce the experimental data well.

关键词： Calculation of Neutron Induced Reaction on Rh in Energy from 0.002 to 25 MeV

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Calculation and Analysis of Neutron Induced Reactions on 175, 176Lu and NatLu in Energy Region 1 keV～20 MeV

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中国核科技报告 1995年第S1期 22-28页

作者： Han Yinlu Shen Qingbiao( China Nuclear Data Center, CIAE )sun xiuquan Xiao Ling Zhang Zhengjun( Physics Department, Northwest University, Shaanxi)

A set of neutron optical potential parameters for 1 kev≤E_n≤20 MeV is obtained on the basis of the relevant experimental data, and all cross sections of neutron induced reaction on175,175,NatLu are calculated. The c... 详细信息

关键词： Lu and MeV Nat)Lu in Energy Region 1 keV Calculation and Analysis of Neutron Induced Reactions on

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