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Online since: July 2014
Authors: Gunalan Muthu, Subramaniam Shanmugam, Arunachalam R. Veerappan
Exergy loss in the collector can be minimized by integrating higher reflectivity material.
International journal of thermal sciences, 46, 1304 – 1310
[3] M.Eswaramoorthy, S.Shanmugam, Thermodynamic analysis of solar parabolic dish thermoelctric generator, International journal of renewable energy technology, 1(3) 2010 348-360
International journal of thermal sciences, 46, 1304 – 1310
[3] M.Eswaramoorthy, S.Shanmugam, Thermodynamic analysis of solar parabolic dish thermoelctric generator, International journal of renewable energy technology, 1(3) 2010 348-360
Online since: July 2014
Authors: Ting Hua Huang, Shu Hai Fan, Lan Juan Dong
Analyze According to the changeover process of AS shield, which is Preparation, Changeover, Checking/Debugging and Measuring, the project members analyze the possible causes from 5M1E (Man, Machine, Material, Method, Measurement, Environment) through brainstorming.
Acknowledgements This work was supported by National Natural Science Foundation of China (Grant No. 71171110 and No. 71371097).
International Journal of Production Economics.
International Journal of Production Economics.
Acknowledgements This work was supported by National Natural Science Foundation of China (Grant No. 71171110 and No. 71371097).
International Journal of Production Economics.
International Journal of Production Economics.
Contact Stress Analysis on a Large-Sized Four Contact-Point Slewing Bearing with Negative Axial Play
Online since: February 2013
Authors: Hai Feng Zhu, Yan Shuang Wang
Contact Stress Analysis on A Large-Sized Four Contact-Point Slewing Bearing with Negative Axial Play
Yanshuang Wang1,a, Haifeng Zhu1,b
1Henan University of Science and Technology, Luoyang 471003, China
aEmail:hkd_wang_yan_shuang@126.com
Key words: bearing; four point contact; negative play; contact stress
Abstract: The analysis method on contact stresses between balls and inner/outer ring raceways of a large-sized four contact-point slewing bearing with negative axial play was present.
Table 1 Parameters of the computed bearing Four contact-point slewing bearing Number of ball N 256 Inner raceway groove curvature coefficient fi 0.53 Outer raceway groove curvature coefficient fo 0.53 Ball diameter Db(mm) 45 Pitch diameter dm(mm) 2215 Shear elastic modulus E(N/m2) Poisson’s ratio 0.3 the mass density of the ball material (kg/m3) 7300 When the axial play is -0.03mm,.the distribution of the contact stresses between balls and the left-inner raceway is shown as Figure 3, the according maximum contact stress is 975.5MPa.The distributions of the contact stress between balls and the right-inner raceway, right-outer raceway, left-outer raceway are similar to the above, the according maximum contact stresses are 982.7MPa, 974.9MPa and 968.1MPa.
Journal of Tribology, Transactions of the ASME, Vol.114(1992), p.530-539
High-speed ball bearing analysis[J] Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Vol.220(2006), p.537-544
Table 1 Parameters of the computed bearing Four contact-point slewing bearing Number of ball N 256 Inner raceway groove curvature coefficient fi 0.53 Outer raceway groove curvature coefficient fo 0.53 Ball diameter Db(mm) 45 Pitch diameter dm(mm) 2215 Shear elastic modulus E(N/m2) Poisson’s ratio 0.3 the mass density of the ball material (kg/m3) 7300 When the axial play is -0.03mm,.the distribution of the contact stresses between balls and the left-inner raceway is shown as Figure 3, the according maximum contact stress is 975.5MPa.The distributions of the contact stress between balls and the right-inner raceway, right-outer raceway, left-outer raceway are similar to the above, the according maximum contact stresses are 982.7MPa, 974.9MPa and 968.1MPa.
Journal of Tribology, Transactions of the ASME, Vol.114(1992), p.530-539
High-speed ball bearing analysis[J] Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Vol.220(2006), p.537-544
Online since: June 2013
Authors: Fuh Kuo Chen, Shi Wei Liu
Springback becomes more significant when stamping the advanced high strength steel because of the high yield stress of material.
Asnafi: International Journal of Mechanical Sciences, Vol. 43 (2001), No. 1, p. 5-37
Chu: International Journal of Solids in Structure, Vol. 27 (1991), p. 1035-1046
Asnafi: International Journal of Mechanical Sciences, Vol. 43 (2001), No. 1, p. 5-37
Chu: International Journal of Solids in Structure, Vol. 27 (1991), p. 1035-1046
Online since: October 2009
Authors: Li Xun Zhang, Li Quan Wang, Xiao Dong Xing, Jun Liu
Due to the load
condition and character of the structure, the maximum stress of the structure appears in the doorpost
position, it's value is 273Mpa which is less than the material bending strength, so it meets the require
of the work condition.
Ranjbar: Engineering Failure Analysis, Vol. 16(2009), p. 923 [2] You-Gang Tang, Su-Xia Zhang, Cong Yi: Journal of Sound and Vibration, Vol. 97(2006), p. 408 [3] Ching-Yu Hsu, Cho-Chung Liang, Sheau-Wen Shiah, Chan-Yung Jen: Ocean Engineering, Vol. 32(2005) , p. 1098 [4] R.Curran, G.Gomis, S.Castagne, J.Buttereld, T.Edgar, C.Higgins, C.McKeever: International Journal of Production Economics, Vol. 109(2007) , p. 27 [5] Rivka Oxman: Design Studies, Vol. 127(2007) , p. 229 [6] Yuan-JyeTseng, Yu-WenKao, Feng-YiHuang: Computers in Industry, Vol. 59 (2008), p. 798 [7] A.Coulibaly, R.Houssin, B.Mutel: Computers in Industry, Vol. 59(2008), p. 438 [8] Yong Bai, Qiang Bai: Subsea Pipelines and Risers (Elsevier Science Ltd, United States 2005).
Ranjbar: Engineering Failure Analysis, Vol. 16(2009), p. 923 [2] You-Gang Tang, Su-Xia Zhang, Cong Yi: Journal of Sound and Vibration, Vol. 97(2006), p. 408 [3] Ching-Yu Hsu, Cho-Chung Liang, Sheau-Wen Shiah, Chan-Yung Jen: Ocean Engineering, Vol. 32(2005) , p. 1098 [4] R.Curran, G.Gomis, S.Castagne, J.Buttereld, T.Edgar, C.Higgins, C.McKeever: International Journal of Production Economics, Vol. 109(2007) , p. 27 [5] Rivka Oxman: Design Studies, Vol. 127(2007) , p. 229 [6] Yuan-JyeTseng, Yu-WenKao, Feng-YiHuang: Computers in Industry, Vol. 59 (2008), p. 798 [7] A.Coulibaly, R.Houssin, B.Mutel: Computers in Industry, Vol. 59(2008), p. 438 [8] Yong Bai, Qiang Bai: Subsea Pipelines and Risers (Elsevier Science Ltd, United States 2005).
Online since: September 2011
Authors: Lei Liu, Yan Xuan, Lan Wang, Jia Lin Sun
Theoretical Analysis and Simulation Study on Track Rigidity of Turnout
Lei Liu 1, a ,Yan Xuan1,b ,Lan Wang1,c ,Jia lin Sun1,d
1 Railway Science and Technology Research and Development Center, China Academy of Railway Sciences, Beijing,100081,China
aliulei222@126.com,bxuanyan1972@126.com, clwang@rails.com.cn, dsjl@rails.com.cn
Keywords: Track Rigidity, Turnout, Inhomogeneous, Simulation
Abstract: Seriously inhomogeneous track rigidity of turnout will strengthen the dynamic response of wheel/rail system and shorten its service life.
Refer to design material, 63 Sleepers is established in the model (as is shown in Table 1).
Vehicle System Dynamics, 2000, 33(suppl): 131-142 [5] Kenney J T.Steady 2 state Vibrations of Beam on Elastic Foundation for Moving Load[J].Journal of Applied Mechanics,1954,21(12):36-43
Refer to design material, 63 Sleepers is established in the model (as is shown in Table 1).
Vehicle System Dynamics, 2000, 33(suppl): 131-142 [5] Kenney J T.Steady 2 state Vibrations of Beam on Elastic Foundation for Moving Load[J].Journal of Applied Mechanics,1954,21(12):36-43
Online since: February 2014
Authors: Ling Jiang, Juan Du
Estimate the budgets of the 5 projects mentioned above by the estimation method based on chaotic post-processing SVM-PCA, the results are shown in Figure 3
It can be concluded from Figure 3 that by method based on chaotic post-processing SVM-PCA, items consuming huge amount of material are well predicated which could be guide of the following project.
Science and technology, 2012, 28 (8) : 114-116
BULLETIN OF SCIENCE AND TECHNOLOGY , 2012, 28 (10) : 165-167
Journal of Mechanical Engineering. 2012, 48(10): 192-198
Science and technology, 2012, 28 (8) : 114-116
BULLETIN OF SCIENCE AND TECHNOLOGY , 2012, 28 (10) : 165-167
Journal of Mechanical Engineering. 2012, 48(10): 192-198
Online since: May 2016
Authors: Shi Qing Qi, Guo Sheng Ma, Lian Jie Ma
When the tubes cut is finished, the switch is turned on, clamping device releases pipe material, chainsaw stops working, the accumulative total register of main shaft length and frequency is reset.
Journal of Industry Applications, 2010 [4] Chen Guangfeng, Li Qingqing, Wang Weibin, Meng Zhuo.
Science in China Series E-Technology Science, 2009 [7] SHENCK N S, PARADISO J A.
Journal of Industry Applications, 2010 [4] Chen Guangfeng, Li Qingqing, Wang Weibin, Meng Zhuo.
Science in China Series E-Technology Science, 2009 [7] SHENCK N S, PARADISO J A.
Online since: August 2013
Authors: Mao Lin Xu, Li Yan Li
The Application of the TM30 Measuring Robot in the Open Pit Slope Monitoring
Maolin Xu , Liyan Li
(School of Civil Engineering, Liaoning University of Science and Technology, Anshan,Liaoning,114051)
598292749@qq.com
Keywords: TM30 measurement robot, auto monitoring, slope
Abstract.
The open pit slope deformation monitoring points were set up 66 points, respectively, in the ore body easily deformation and roughly along the pit vertical distribution, in order to eliminate error and ensure measurement accuracy, deformation monitoring point and reference point are used forced centering, and used the stainless steel plate material, as shown in Fig.2.
Reference [1].Yuqing,Mo. the journal of Fuyan normal institute. 2011, 28(2):53-56(in Chinese) [2].Zhiqun,Wu.Measuring robot data collection and the development and application of the pre-treat system.
Science and technology innovation herald.2010(21):2(in Chinese) [7].Yachun,mao.En’de,wang.yongsheng,chen.
The open pit slope deformation monitoring points were set up 66 points, respectively, in the ore body easily deformation and roughly along the pit vertical distribution, in order to eliminate error and ensure measurement accuracy, deformation monitoring point and reference point are used forced centering, and used the stainless steel plate material, as shown in Fig.2.
Reference [1].Yuqing,Mo. the journal of Fuyan normal institute. 2011, 28(2):53-56(in Chinese) [2].Zhiqun,Wu.Measuring robot data collection and the development and application of the pre-treat system.
Science and technology innovation herald.2010(21):2(in Chinese) [7].Yachun,mao.En’de,wang.yongsheng,chen.
Online since: August 2012
Authors: Xu Guang Min, Guo Liang Hu
Structure Design and Finite Element Analysis of a New Type Metallic-Disc Flexible Coupling for Diesel Generator Set
Xuguang Min1, a, Guoliang Hu2, b
1Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330038, P.R.
In this simulation, the power of the diesel generator set is 500kW, the material of the metallic-disc was selected 1Cr18Ni9Ti, the yield stress σs is 16kg/mm2, the Poisson's ratio ν is 0.3, and the elastic modulus E is 2×1010Pa.
(Nature Science Edition), Vol.35 (2007), No.4, p.96.
Wang: Journal of Engineering for Thermal Energy & Power, Vol. 17 (2002) No.3, p.308.
In this simulation, the power of the diesel generator set is 500kW, the material of the metallic-disc was selected 1Cr18Ni9Ti, the yield stress σs is 16kg/mm2, the Poisson's ratio ν is 0.3, and the elastic modulus E is 2×1010Pa.
(Nature Science Edition), Vol.35 (2007), No.4, p.96.
Wang: Journal of Engineering for Thermal Energy & Power, Vol. 17 (2002) No.3, p.308.