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Online since: March 2010
Authors: Kan Zheng, Xiang Zhang, Wen He Liao
Structure Characteristic Analysis and
Optimization Design for Microsatellite
Kan Zheng1,a, Wenhe Liao2,b
and Xiang Zhang3,c
1
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and
Astronautics, China
2
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and
Astronautics, China
3
Academy of Frontier Science, Nanjing University of Aeronautics and Astronautics, China
a
zk92800@nuaa.edu.cn, b
cnwho@nuaa.edu.cn, czhxiang2002@nuaa.edu.cn
Keywords: Microsatellite, FEM, Optimization design, Sequential quadratic programming,
Honeycomb sandwich panel
Abstract.
The principles of simplifying FEM are as following: The panels of the main structure for the satellite are the anisotropic materials, which are typically aluminum honeycomb sandwich panels.
Jin: Journal of Shanghai Jiaotong University, Vol. 36 (11) (2002), pp.1572-1575
[5] Biegler L T, Nocedal J, Schmid C: SIAM Journal of Optimization, Vol. 5 (3)(1995), p.314
The principles of simplifying FEM are as following: The panels of the main structure for the satellite are the anisotropic materials, which are typically aluminum honeycomb sandwich panels.
Jin: Journal of Shanghai Jiaotong University, Vol. 36 (11) (2002), pp.1572-1575
[5] Biegler L T, Nocedal J, Schmid C: SIAM Journal of Optimization, Vol. 5 (3)(1995), p.314
Online since: November 2011
Authors: Li Ming Hu, Jian Wang
Acknowledgment
The financial support from National Natural Science Foundation of China (Project No. 50879038), Ministry of education (NCET-07-0480) and Beijing Scientific Research Program (D07050601510000) are gratefully acknowledged.
Johnson, Air distribution during in situ air sparging: an overview of mathematical modeling, Journal of Hazardous Materials Vol. 72(2000), p. 265-282
Schaap and M.T. van Genuchten, A modified Mualem-van Genuchten formulation for improved description of the hydraulic conductivity near saturation, Vadose zone Journal.
Johnson, Air distribution during in situ air sparging: an overview of mathematical modeling, Journal of Hazardous Materials Vol. 72(2000), p. 265-282
Schaap and M.T. van Genuchten, A modified Mualem-van Genuchten formulation for improved description of the hydraulic conductivity near saturation, Vadose zone Journal.
Online since: December 2014
Authors: Do Bum Kim, Byong Jeong Choi
The effect of combined materials in composite beam is achieved with the shear connector at upper flange.
Reference to a book: [2] Research Institute of industrial Science & Technology Write, Composite slabs and beams using steel decking, Korean, 2011
S.K., Flexural Capacity of the Profiled Steel Composite Beams with Truss Deck Plate, Journal of Korean Society of Steel Construction, KSSC, Vol. 19, No. 4 (2007), pp.413-423
Canadian Journal of Civil Engineering, 19(1992), 1-10
Reference to a book: [2] Research Institute of industrial Science & Technology Write, Composite slabs and beams using steel decking, Korean, 2011
S.K., Flexural Capacity of the Profiled Steel Composite Beams with Truss Deck Plate, Journal of Korean Society of Steel Construction, KSSC, Vol. 19, No. 4 (2007), pp.413-423
Canadian Journal of Civil Engineering, 19(1992), 1-10
Online since: December 2012
Authors: R.A. Siregar, J.C. Leong, M.J. Hasnul, N. Liyana Tajul Lile
Hasebe: Detection and Diagnosis of Blockage in Parallelized Microreactors (Chemical Engineering Journal 167 (2011) 483–489)
Muhamad Azmi: Blockage Detection in Circular Pipe Using Vibration Analysis (International Journal on Advanced Science Engineering Information Technology Vol. 2 (2012) No. 3)
Roslan: Vibration Analysis of Blocked Circular Pipe Flow (Applied Mechanics and Materials Vol. 165 (2012) pp 197-201)
Muhamad Azmi: Blockage Detection in Circular Pipe Using Vibration Analysis (International Journal on Advanced Science Engineering Information Technology Vol. 2 (2012) No. 3)
Roslan: Vibration Analysis of Blocked Circular Pipe Flow (Applied Mechanics and Materials Vol. 165 (2012) pp 197-201)
Online since: February 2011
Authors: Yu Qing Yan, Ming Gao
Fire Retardant Cellulose Characterized by Thermal Degradation
Behavior
Ming Gao1, a, Yuqing Yan1, b,
1Department of Environmental Engineering, North China University of Science and Technology, Box 206,Yanjiao Beijing 101601, China
agaoming@ncist.edu.cn, byanyuqing@ncist.edu.cn
Key words: Cotton Cellulose, DTA, Fire Retardant, TG
Abstract.
After the oxidative decomposition stage, mass losses of the residual materials of cellulose are found to be slow in the temperature range 350-485°C.
L.Bhatnagar: British Polymer Journal, Vol.22 (1990) p.107 [4] P.
Heuberger: Journal of Analytical and Applied Pyrolysis, Vol. 87(2010), p.93 [5] M.
After the oxidative decomposition stage, mass losses of the residual materials of cellulose are found to be slow in the temperature range 350-485°C.
L.Bhatnagar: British Polymer Journal, Vol.22 (1990) p.107 [4] P.
Heuberger: Journal of Analytical and Applied Pyrolysis, Vol. 87(2010), p.93 [5] M.
Online since: October 2012
Authors: Xue Peng Liu, Dong Mei Zhao
Through the comparison also show that blank and treatment of wood activated carbon products of acid number are better than petroleum coke center of activated carbon, first of all this and system of the raw material wood activated carbon.
Through the comparison also show that blank and treatment of wood activated carbon products of acid number are better than petroleum coke center of activated carbon, first of all this May and system of the raw material wood activated carbon.
References [1] Wang Hong_juan Xi Hong_xia Zhang ,i Activation Energy for Desorption of n-Hexanol on Modified Activated Carbons, Journal of South China University of Technology(Natural Science),2002.7: 1503-1506 [2]Wang Kunping Xu Qianqian,etc , Effect of several different treatment methods on surface chemical properties of actived carbon, Chinese Journal of Environmental Engineering,, 2012.2: 1561-581 [3] XU San-Kui LI Li-Min1, etc., Hydrogenation of Glucose Using Ru/Activated Carbon Catalysts: Effects of Modification Methods on Surface Properties of Activated Carbon, Acta Physico-Chimica Sinica, 2012.1:120-137 [4] Xingya Cai, Applied Study on the Superficial Transformation of Active Carbon in the Hydration of Ethylene Oxide to N-propyl alcohol, Dalian university of chemical technology,2000.6
Through the comparison also show that blank and treatment of wood activated carbon products of acid number are better than petroleum coke center of activated carbon, first of all this May and system of the raw material wood activated carbon.
References [1] Wang Hong_juan Xi Hong_xia Zhang ,i Activation Energy for Desorption of n-Hexanol on Modified Activated Carbons, Journal of South China University of Technology(Natural Science),2002.7: 1503-1506 [2]Wang Kunping Xu Qianqian,etc , Effect of several different treatment methods on surface chemical properties of actived carbon, Chinese Journal of Environmental Engineering,, 2012.2: 1561-581 [3] XU San-Kui LI Li-Min1, etc., Hydrogenation of Glucose Using Ru/Activated Carbon Catalysts: Effects of Modification Methods on Surface Properties of Activated Carbon, Acta Physico-Chimica Sinica, 2012.1:120-137 [4] Xingya Cai, Applied Study on the Superficial Transformation of Active Carbon in the Hydration of Ethylene Oxide to N-propyl alcohol, Dalian university of chemical technology,2000.6
Online since: December 2012
Authors: Jian Hong Fang, Yu Zhang, An Hua Xu, Jian Kun Liu
Draw the curves of loading tests to single replacement pier and the soil between the piers, as shown in Figure.2.The curves are gradual smooth and regularity which reflect the characteristics of granular materials.
Acknowledgements The authors wish to acknowledge the support and motivation provided by National 973 Project of China (NO.2012CB026104) and National Science Foundation of China (NSFC) under Grant No.41171064.
Harris: Ground improvement Géotechnique, V 58, Issue 5, p. 399 –404 (2008) [2] Dong Wei,Yan Shuwang, Feng Shouzhong and Yan, Fusheng,: Study on dynamic compaction replacement for reinforcing freeway roadbed in wetlands Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, v 28, n SUPPL. 1, p 2966-2972(2009) [3] Huang, Xiao-Bo,Zhou, Li-Xin, He Shu-Jun and Zhou Hu-Xin: Study on test of saline soil ground treatment with the soaking and dissolving combined dynamic compaction method Yantu Lixue/Rock and Soil Mechanics, v 27, n11, p 2080-2084, (2006) [4] Liu Jiankun, Zeng Qiaoling and Hou Yongfeng, in: Subgrade Engineering, China Building Industry Publishers (2006) [5] (GB50021-2001)Code for Geotechnical Engineering Investigation, The People's Republic of China Ministry of Construction (2002)
Chinese Journal of Geotechnical Engineering, v 33, n SUPPL. 1, 251-254 (2011)
Acknowledgements The authors wish to acknowledge the support and motivation provided by National 973 Project of China (NO.2012CB026104) and National Science Foundation of China (NSFC) under Grant No.41171064.
Harris: Ground improvement Géotechnique, V 58, Issue 5, p. 399 –404 (2008) [2] Dong Wei,Yan Shuwang, Feng Shouzhong and Yan, Fusheng,: Study on dynamic compaction replacement for reinforcing freeway roadbed in wetlands Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, v 28, n SUPPL. 1, p 2966-2972(2009) [3] Huang, Xiao-Bo,Zhou, Li-Xin, He Shu-Jun and Zhou Hu-Xin: Study on test of saline soil ground treatment with the soaking and dissolving combined dynamic compaction method Yantu Lixue/Rock and Soil Mechanics, v 27, n11, p 2080-2084, (2006) [4] Liu Jiankun, Zeng Qiaoling and Hou Yongfeng, in: Subgrade Engineering, China Building Industry Publishers (2006) [5] (GB50021-2001)Code for Geotechnical Engineering Investigation, The People's Republic of China Ministry of Construction (2002)
Chinese Journal of Geotechnical Engineering, v 33, n SUPPL. 1, 251-254 (2011)
Online since: March 2013
Authors: Bing Chen, Zhong Jun Yin, Ming Le Deng
Calculation analysis of natural frequency of Pipe conveying fluid resting on Pasternak foundation
Bing Chen 1, a, Ming-le Deng 2,b and Zhong-jun Yin 3,c
1,2,3Mechanical Engineering School of University of Science and Technology Beijing, Beijing, China
a bingchen9803@ustb.edu.cn, b dengml1987@yahoo.cn, c yinzhongjun@ustb.edu.cn
Keywords: Pipe conveying fluid; natural frequency; complex mode method; Galerkin method; Pasternak foundation.
The complex mode method and Galerkin mode truncation method Suppose T=Γ-Π(1-2vδ) and T denote pretension force; ignore influence of gravity, and damping induced material dissipation and flow; the situation of steady flow is studied in this paper, namely ; equation (2) can be simplified to a homogeneous form, (3) (3) is a linear partial differential equation which can be solved by the complex mode method, a complex transcendental equation that contains information of natural frequency can be solved by numercial method, and the specified transformati- on process can be found in refs [4]
Note that the existence of influence of gravity and material dissipation are also ignored in the solving process of Galerkin method.
[4] Xiaodong Yang, Jiduo Jin: Journal of Vibration and Shock [J], Vol. 27(3) (2008), p.81-86.
[5] Huanhuan Qi, Jian Xu: Journal of Vibration and Shock, Vol. 30(1) (2011), p.148-151.
The complex mode method and Galerkin mode truncation method Suppose T=Γ-Π(1-2vδ) and T denote pretension force; ignore influence of gravity, and damping induced material dissipation and flow; the situation of steady flow is studied in this paper, namely ; equation (2) can be simplified to a homogeneous form, (3) (3) is a linear partial differential equation which can be solved by the complex mode method, a complex transcendental equation that contains information of natural frequency can be solved by numercial method, and the specified transformati- on process can be found in refs [4]
Note that the existence of influence of gravity and material dissipation are also ignored in the solving process of Galerkin method.
[4] Xiaodong Yang, Jiduo Jin: Journal of Vibration and Shock [J], Vol. 27(3) (2008), p.81-86.
[5] Huanhuan Qi, Jian Xu: Journal of Vibration and Shock, Vol. 30(1) (2011), p.148-151.
Online since: August 2013
Authors: Wang Lin, Zuo Yun Li, Mo Liu, Jin Hua Ning
Green construction system, including:four specific contents: the green site, green resources, green production and green products;control in two levels: the production of material transformation process and control the whole process of product life cycle;Two objectives: resources ,reducing consumption of energy and ecological improvement in environment.The technical system shown in Table 1 [1].
(4) TABLE 1 The energy-saving index system of construction job-site based on green construction Energy-saving condition of Green Construction Green site selection Save land R1 Affect environment R2 Affect traffic and city R3 Green resource Save material R4 Save water R5 Save resource R6 Not environment damage R7 Waste reclamation R8 Green production Green production equipment R9 Green production technique R10 TABLE 2 The energy-saving levels relative index table Level Excellent Good Medium Poor Relative index 0.85-1 0.85—0.75 0.75—0.65 0—0.65 Mult- target evaluation vector synthesis measurement.
Hua zhong University of Science and Technology, 2007
[2] Li wanqing etc.The unascertained mathematics in the application of construction safety evaluation [J] vol 23 journal of hebei architecture technology institute, fusion eng.
[3] Yang zhimin.unascertained information mathematical treatment methods [J].journal of Chinese management, first (8) : 192-196
(4) TABLE 1 The energy-saving index system of construction job-site based on green construction Energy-saving condition of Green Construction Green site selection Save land R1 Affect environment R2 Affect traffic and city R3 Green resource Save material R4 Save water R5 Save resource R6 Not environment damage R7 Waste reclamation R8 Green production Green production equipment R9 Green production technique R10 TABLE 2 The energy-saving levels relative index table Level Excellent Good Medium Poor Relative index 0.85-1 0.85—0.75 0.75—0.65 0—0.65 Mult- target evaluation vector synthesis measurement.
Hua zhong University of Science and Technology, 2007
[2] Li wanqing etc.The unascertained mathematics in the application of construction safety evaluation [J] vol 23 journal of hebei architecture technology institute, fusion eng.
[3] Yang zhimin.unascertained information mathematical treatment methods [J].journal of Chinese management, first (8) : 192-196
Online since: February 2013
Authors: Yan Li, Lin Jin, Xiao Zhang, Miao Liu
(1)
Where P is the average pressure of the contact area,E is the elasticity coefficient of packing material, δ is the thickness of the liner, λmax is the maximum value of liner’s compressive deformation.The printing pressure of the contact area is:
F=23lpb
The coefficient of the tube material for the thermal conductivity is constant λ2, and its thickness is δ2.
Acknowledgement This study is supported by National Science and Technology Support Program (2012BAF13B05), Research Teams Project of Beijing Institute of Graphic Communication,And Institute Level Key Projects Funded by Beijing Institute of Graphic Communication (No. 23190112029).
[4] [4]WANG Shuang-cheng, WANG Qian: The calculation of water’s physical properties (The journal of Henan TV University, 2000, p.31) [5] CHENG Hong: Principles and design of the modern printing machinery (China Light Industry Press, Beijing 2007) [6] Wang Ye-ping: Journal of mechanical Vol. 29 (2002), p.20.
The coefficient of the tube material for the thermal conductivity is constant λ2, and its thickness is δ2.
Acknowledgement This study is supported by National Science and Technology Support Program (2012BAF13B05), Research Teams Project of Beijing Institute of Graphic Communication,And Institute Level Key Projects Funded by Beijing Institute of Graphic Communication (No. 23190112029).
[4] [4]WANG Shuang-cheng, WANG Qian: The calculation of water’s physical properties (The journal of Henan TV University, 2000, p.31) [5] CHENG Hong: Principles and design of the modern printing machinery (China Light Industry Press, Beijing 2007) [6] Wang Ye-ping: Journal of mechanical Vol. 29 (2002), p.20.