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The Study of an Improved Algorithm About Hilbert Energy Spectrum
Yang Jianwen,Jia Minping,Xu Feiyun,Hu Jianzhong
Strategic Study of CAE 2005, Volume 7, Issue 7, Pages 55-59
The Hilbert energy spectrum's principle in HHT is analyzed in the paper; Aimed to solve the endinstantaneous spectrum figure, the cause is researched and ARMA model is introduced in the calculation of Hilbertmethods, the advanced method is proved to be able to improve the end problem effectively and optimize the Hilbert
Keywords: Hilbert transform the distortion of end instantaneous parameter intrinsic mode function
Image-based 3D model retrieval using manifold learning None
Pan-pan MU, San-yuan ZHANG, Yin ZHANG, Xiu-zi YE, Xiang PAN
Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 11, Pages 1397-1408 doi: 10.1631/FITEE.1601764
Keywords: Model retrieval Euclidean space Riemannian manifold Hilbert space Metric learning
Lian Jijian,Li Chengye,Liu Fang,Ma Bin
Strategic Study of CAE 2011, Volume 13, Issue 12, Pages 38-44
In the long-term service period, many factors may lead to serious damages and deficiencies to the structure, such as complicated working conditions, inadequate investigation and design, poor management, aging of structure, etc. Therefore, it's very important to study the online monitoring method for flood discharge. According to the special advantages of HHT in instantaneous characteristics analysis and signal processing, an online monitoring method for flood discharge structure damage based on HHT is put forward in this paper. Firstly, after obtaining the HHT energy spectrum of measured responses, the energy distribution vector, defined as ηi , can be calculated. Then, because of the η i differences between undamaged and damaged situations, we determine the structure anomaly indexes and the warning threshold. Finally, having been calculating the anomaly indexes of adjacent time periods, the damage online monitoring can be realized. The results from the numerical simulation test of a guide wall demonstrate that the anomaly indexes mentioned above can accurately identify the structure damage and have anti-noise ability to some degree. However, the further research for estimating the damage location and degree need to be developed in the next period.
Keywords: flood discharge structure Hilbert-Huang Transform the energy distribution vector anomaly index warning
The “Tiangong” Chinese Space Station project
Yang HONG
Frontiers of Engineering Management 2018, Volume 5, Issue 2, Pages 278-283 doi: 10.15302/J-FEM-2018202
Keywords: manned space station space station project basic design
Application and development of modern long-span space structures in China
Shilin DONG, Yang ZHAO, Dong XING
Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3, Pages 224-239 doi: 10.1007/s11709-012-0166-6
Keywords: modern long-span space structures rigid space structures flexible space structures rigid-flexible combinedspace structures application and development
Coordinated Development of Space Science, Space Technology, and Space Application in China
Zhou Jianping, Wu Ji
Strategic Study of CAE 2023, Volume 25, Issue 2, Pages 59-66 doi: 10.15302/J-SSCAE-2023.02.007
Keywords: aerospace industry space science space technology space application coordinated development sharingof space data
Exploration and research of space physics and space weather
Wang Chi
Strategic Study of CAE 2008, Volume 10, Issue 6, Pages 41-45
Space physics is a fast-growing cross-discipline science with the advanceSpace environment is becoming more and more important as the fourth living environment for human beingStarting from the early 1990s, space weather is born by applying the fundamentals of space physics toon our high-tech systems on the earth and in space.physics and space weather exploration and study, and introduces the suggested space physics and space
Keywords: space physics space weather space physics exploration strategic plan
Research Status and Future Development of Deep Space Security
Wu Ke, Zhang Zhe, Yang Wenfei, He Jianfeng, Zhang Tianzhu, Jian Kangkang, Wu Weiren
Strategic Study of CAE 2022, Volume 24, Issue 4, Pages 240-248 doi: 10.15302/J-SSCAE-2022.04.023
Keywords: deep space security space radiation threat planetary protection space heritage protection space legislation
Frontiers of Chemical Science and Engineering Pages 1623-1631 doi: 10.1007/s11705-022-2202-y
Keywords: bimetallic adsorbents confined space mesoporous silica propene/propane separation
Corrosion damage assessment and monitoring of large steel space structures
Bo CHEN, You-Lin XU, Weilian QU,
Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3, Pages 354-369 doi: 10.1007/s11709-010-0088-0
Keywords: large steel space structure atmospheric corrosion stress corrosion cracking corrosion damage damage assessment
Achievements and development ofChina’s space activities
Wang Liheng
Strategic Study of CAE 2008, Volume 10, Issue 12, Pages 10-12
This paper describes the current situation of the international spaceactivities, summarizes the new trends of the new space programs in the world and their characteristics, briefly introduces the brilliant achievements of China's space activities, and gives a full prospectfor the future development of China's space activities.
Keywords: China’s space activities new space programs achievements of China’s space activities
HHT-based crack identification method for start-up rotor
Bing LI, Chunlin ZHANG, Zhengjia HE
Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3, Pages 300-304 doi: 10.1007/s11465-012-0328-1
This paper presents a crack identification method for start-up rotor based on the Hilbert-Huang transformthis method, the instantaneous frequency (IF) of each intrinsic mode function is obtained through the Hilbert
Keywords: cracked rotor start-up Hilbert-Huang transform (HHT)
Jizu LV, Minli BAI, Long ZHOU, Jian ZHOU,
Frontiers in Energy 2010, Volume 4, Issue 3, Pages 392-401 doi: 10.1007/s11708-009-0066-1
Keywords: heat transfer space non-uniformity soot emission in-cylinder diesel
Senping WANG; Xiaolong LIU; Bo YUAN; Minjie SHI; Yanhui WEI
Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 9, Pages 1141-1152 doi: 10.1007/s11709-022-0866-5
Keywords: torsional stiffness strength design elastic buckling space truss arches out-of-plane
Application of MoS in the space environment: a review
Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0755-1
Keywords: MoS2 soft metal space environment surface texture synergistic effect vibration
Title Author Date Type Operation
The Study of an Improved Algorithm About Hilbert Energy Spectrum
Yang Jianwen,Jia Minping,Xu Feiyun,Hu Jianzhong
Journal Article
Image-based 3D model retrieval using manifold learning
Pan-pan MU, San-yuan ZHANG, Yin ZHANG, Xiu-zi YE, Xiang PAN
Journal Article
Study on online monitoring method for flood discharge structure damage based on Hilbert-Huang Transform
Lian Jijian,Li Chengye,Liu Fang,Ma Bin
Journal Article
Application and development of modern long-span space structures in China
Shilin DONG, Yang ZHAO, Dong XING
Journal Article
Coordinated Development of Space Science, Space Technology, and Space Application in China
Zhou Jianping, Wu Ji
Journal Article
Research Status and Future Development of Deep Space Security
Wu Ke, Zhang Zhe, Yang Wenfei, He Jianfeng, Zhang Tianzhu, Jian Kangkang, Wu Weiren
Journal Article
Fabrication of bimetallic Cu–Zn adsorbents with high dispersion by using confined space for gas adsorptive
Journal Article
Corrosion damage assessment and monitoring of large steel space structures
Bo CHEN, You-Lin XU, Weilian QU,
Journal Article
HHT-based crack identification method for start-up rotor
Bing LI, Chunlin ZHANG, Zhengjia HE
Journal Article
Effect of heat transfer space non-uniformity of combustion chamber components on in-cylinder heat transfer
Jizu LV, Minli BAI, Long ZHOU, Jian ZHOU,
Journal Article
Out-of-plane elastic buckling load and strength design of space truss arch with a rectangular section
Senping WANG; Xiaolong LIU; Bo YUAN; Minjie SHI; Yanhui WEI
Journal Article