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| 1 | Bifurcation and Chaos Analysis of Nonlinear Rotor System with Axial-grooved Gas-lubricated Journal Bearing Support显示文摘Axial-grooved gas-lubricated journal bearings have been widely applied to precision instrument due to their high accuracy, low friction, low noise and high stability. The rotor system with axial-grooved gas-lubricated journal bearing support is a typical nonlinear dynamic system. The nonlinear analysis measures have to be adopted to analyze the behaviors of the axial-grooved gas-lubricated journal bearing-rotor nonlinear system as the linear analysis measures fail. The bifurcation and chaos of nonlinear rotor system with three axial-grooved gas-lubricated journal bearing support are investigated by nonlinear dynamics theory. A time-dependent mathematical model is established to describe the pressure distribution in the axial-grooved compressible gas-lubricated journal bearing. The time-dependent compressible gas-lubricated Reynolds equation is solved by the differential transformation method. The gyroscopic effect of the rotor supported by gas-lubricated journal bearing with three axial grooves is taken into consideration in the model of the system, and the dynamic equation of motion is calculated by the modified Wilson-θ-based method. To analyze the unbalanced responses of the rotor system supported by finite length gas-lubricated journal bearings, such as bifurcation and chaos, the bifurcation diagram, the orbit diagram, the Poincaré map, the time series and the frequency spectrum are employed. The numerical results reveal that the nonlinear gas film forces have a significant influence on the stability of rotor system and there are the rich nonlinear phenomena, such as the periodic, period-doubling, quasi-periodic, period-4 and chaotic motion, and so on. The proposed models and numerical results can provide a theoretical direction to the design of axial-grooved gas-lubricated journal bearing-rotor system. | ZHANG Yongfang HEI Di Lü Yanjun WANG Quandai MüLLER Norbert | 2014 | Chinese Journal of Mechanical Engineering2014，27，2： | 9 |
| 2 | Radiosonde temperature trends and their uncertainties over easte-rn China显示文摘 | Guo Yanjun Thome P W McCarthy M P | 2008 | Int J Climatol2008，28，： | 1 |
| 3 | Depth detection of surfaee- breaking cracks in concrete plates using fundamental Lamb mo- des 显示文摘 | Yang Yanjun Cascante G Polak M A | 2009 | NDT&E International2009，42，： | 1 |
| 4 | Radiosonde temperature trends and their uncertainties over eastern China显示文摘 | Guo Yanjun Thorne P W McCarthy M P | 2007 | International Journal of Climatology2007，，： | 1 |
| 5 | Health benefits of sea buckthorn for the prevention of cardiovascular diseases显示文摘 | XU Yanjun KAUR M RESHVINDER S | | 0，，01： | 1 |
| 6 | Pomegranate juice metabolites, ellagic acid and urolithin A, synergistically inhibit androgen-independent prostate cancer cell growth via distinct effects on cell cycle control and apoptosis 显示文摘 | Roberto V Yanjun Z Susanne M H | 2013 | Evid Based Complement Alternat Med2013，，： | 1 |
| 7 | Text document clustering based on frequent word meaning sequences显示文摘 | Li Yanjun Chung M S Holt J D | 2008 | Data & Knowledge Engineering2008，61，1： | 1 |
| 8 | Text document clustering based on neighbors 显示文摘 | LUO Congnan LI Yanjun Chung S M | 2009 | Data and Knowledge Engineering2009，68，11： | 1 |
| 9 | Paridis saponins inhibiting carcinoma growth and metastasis in vitro and in vivo显示文摘 | Shuli M Wenyuan G Yanjun Z | 2011 | Arch Pharm Res2011，34，1： | 1 |
| 10 | Timing, duration, and transitions of the last interglacial Asian monsoon 显示文摘 | Yuan Daoxian Cheng Hai Edwards R L Dykoski C A Kelly M J Zhang Meiliang Qing Jiaming Lin Yushi Wang Yongjin Wu Jiangyin Dorale J A An Zhisheng Cai Yanjun | 2004 | Science2004，304，5670： | 1 |
| 11 | Herp is dually regulated by both the endoplasmic reticulum stress-specific branch of the unfolded protein response and a branch that is shared with other cellular stress pathways显示文摘 | Ma Yanjun Hendershot L M | | 0，，14： | 1 |
| 12 | Paridis sap-onins inhibiting carcinoma growth and metastasis in vitroand in vivo显示文摘 | SHULI M WENYUAN G YANJUN Z | 2011 | Arch Pharm Res2011，34，1： | 1 |
| 13 | Text document clustering based on neighbors 显示文摘 | Luo Congnan Li Yanjun Soon M Chung | 2009 | Data & Knowledge Engineering2009，68，11： | 1 |
| 14 | Adsorbed silica in stalagmite carbonate and its relationship to past rainfall 显示文摘 | Hu Chaoyong Huang Junhua Fang Nianqiao Xie Shucheng Henderson G M Cai Yanjun | 2005 | Geochim Cosmochim Acta2005，69，9： | 1 |
| 15 | Effect of va- rious sludge digestion conditions on sulfonamide, macroli- de, and tetracycline resistance genes and class I integrons 显示文摘 | Yanjun M Christopher A W John T N | 2011 | Environmental Science & Technology2011，45，18： | 1 |
| 16 | Depth detection of surface-breaking cracks in concrete plates using fundamental Lamb modes显示文摘 | YANG Yanjun CASCANTE G POLAK M A | 2009 | NDT&E Interna- tional2009，42，6： | 1 |
| 17 | Human tumor cell growth inhibition by nontoxic anthocyanidins, the pigments in fruits and vegetables显示文摘 | ZHANG Yanjun VAREED S K NAIR M G | 2005 | Life Sci2005，76，13： | 1 |
| 18 | Text clustering with feature selection by using statistical data显示文摘 | Li Yanjun Luo Congnan Chung S M | 2008 | IEEE Transactions Knowledge and Data Engineering2008，20，5： | 1 |
| 19 | Timing,duration,and transitions of the last interglacial Asian monsoon显示文摘 | Yuan Daoxian Cheng Hai Edwards R L Dykoski C A Kelly M J Zhang Meiliang Qing Jiaming Lin Yushi Wang Yongjin Wu Jiangying Dorale J A An Zhisheng Cai Yanjun | | 0，，： | 1 |
| 20 | Paridis saponitis inhibitingcarcinoma growth and metaslasis in vitro and in vivo 显示文摘 | Shuli M Wenyuan G Yanjun Z el al | 2011 | Arch PliannRes2011，34，1： | 1 |
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