Search scope:
排序: Display mode:
Large engineering project in China based on questionnaire investigation
Xie Hongtao,Wang Mengjun
Strategic Study of CAE 2010, Volume 12, Issue 1, Pages 18-23
,The design idea and main contents of the questionnaire, which is about
Keywords: large engineering project decision-making stage questionnaire investigation correlation analysis
Fei Liu, Li Liu, Fang Zheng, Xiangdong Tang, Yongxin Bao, Yunxia Zuo
Frontiers of Medicine 2018, Volume 12, Issue 2, Pages 189-195 doi: 10.1007/s11684-017-0533-8
Keywords: obstructive sleep apnea Berlin Questionnaire Chinese surgical patients adverse respiratory event
Ecological compensation based on willingness to accept for conservation of drinking water sources
Linyu XU,Bing YU,Yang LI
Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1, Pages 58-65 doi: 10.1007/s11783-014-0688-3
Keywords: contingent valuation method questionnaire survey Miyun Reservoir
An investigation on modification mechanism of CH
Qiang XIN, Shanghong HUANG
Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3, Pages 293-300 doi: 10.1007/s11709-017-0403-0
Keywords: low temperature coal tar pitch modification road performance
Multi-scale investigation of active failure for various modes of wall movement
Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4, Pages 961-979 doi: 10.1007/s11709-021-0738-4
Keywords: discrete-element modelling granular materials retaining walls particle shape arching
Analytical and numerical investigation into the longitudinal vibration of uniform nanotubes
Masoud MASOUMI,Mehdi MASOUMI
Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2, Pages 142-149 doi: 10.1007/s11465-014-0292-z
In recent years, prediction of the behaviors of micro and nanostructures is going to be a matter of increasing concern considering their developments and uses in various engineering fields. Since carbon nanotubes show the specific properties such as strength and special electrical behaviors, they have become the main subject in nanotechnology researches. On the grounds that the classical continuum theory cannot accurately predict the mechanical behavior of nanostructures, nonlocal elasticity theory is used to model the nanoscaled systems. In this paper, a nonlocal model for nanorods is developed, and it is used to model the carbon nanotubes with the aim of the investigating into their longitudinal vibration. Following the derivation of governing equation of nanorods and estimation of nondimensional frequencies, the effect of nonlocal parameter and the length of the nanotube on the obtained frequencies are studied. Furthermore, differential quadrature method, as a numerical solution technique, is used to study the effect of these parameters on estimated frequencies for both classical and nonlocal theories.
Keywords: continuum theory differential quadrature method nanorod longitudinal vibration
Molecular dynamics investigation of mechanical properties of single-layer phagraphene
Ali Hossein Nezhad SHIRAZI
Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2, Pages 495-503 doi: 10.1007/s11709-018-0492-4
Keywords: phaqraphene mechanical properties crack propaqation molecular dynamics thermal effects
WANG Qikun, CHEN Kangmin
Frontiers in Energy 2007, Volume 1, Issue 4, Pages 435-440 doi: 10.1007/s11708-007-0063-5
Keywords: aerodynamic investigation centrifugal de-swirling circumferent
Experimental investigation of the influence on static and cyclic deformation of structural soft clay
CHEN Yunmin, CHEN Yingping, HUANG Bo
Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4, Pages 422-429 doi: 10.1007/s11709-007-0057-4
Keywords: consolidation deformation experimental undisturbed
ZHAO Zhiguo, XIE Maozhao
Frontiers in Energy 2008, Volume 2, Issue 1, Pages 59-65 doi: 10.1007/s11708-008-0022-5
Keywords: improved version impingement atomization hollow radius
Experimental investigation on desiccant air-conditioning system in India
Vijay MITTAL, B. Kant KHAN,
Frontiers in Energy 2010, Volume 4, Issue 2, Pages 161-165 doi: 10.1007/s11708-009-0070-5
Keywords: air ratios ambient conditions desiccant air-conditioning silica gel
An investigation into the vibration of harmonic drive systems
M. Masoumi, H. Alimohammadi
Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 409-419 doi: 10.1007/s11465-013-0275-5
Harmonic drive systems are precise and specific transmission gear systems which are beneficial in terms of the high transmission ratio and almost zero backlash. These inherent and spectacular properties result in using this mechanism in robotic and space sciences where the precision and lightwieght play an important role. This paper presents a vibration analysis of harmonic drive systems using the shell theory. Equations of vibration for the flexspline and the circular spline of the system are derived and used to find the natural frequencies for both parts and, moreover, vibration response of the system under the operating condition is calculated. Also, obtained vibration equations are utilized to study the effects of different involved parameters such as the geometry of the flexspline and its gear tooth, eccentricity, and unbalancing on the vibrational behavior of the system.
Keywords: harmonic drive system strain wave gearing mechanism vibration analysis natural frequencies
An investigation on prevalent strategies for XFEM-based numerical modeling of crack growth in porous
Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4, Pages 914-936 doi: 10.1007/s11709-021-0750-8
Keywords: numerical modeling extended finite element method porous media crack growth stress intensity factor
Test investigation on hydraulic losses in the discharge passage of an axial-flow pump
QIU Baoyun, CAO Haihong, JIANG Wei, GAO Zhaohui, WANG Fei
Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1, Pages 50-56 doi: 10.1007/s11465-007-0008-8
An investigation on stress distribution effect on multi- piezoelectric energy harvesters
Hailu YANG, Dongwei CAO
Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3, Pages 301-307 doi: 10.1007/s11709-017-0404-z
Keywords: piezoelectric transducer uneven stress impedance matching optimal energy output
Title Author Date Type Operation
Large engineering project in China based on questionnaire investigation
Xie Hongtao,Wang Mengjun
Journal Article
Identification of surgical patients at high risk of OSAS using the Berlin Questionnaire to detect potential
Fei Liu, Li Liu, Fang Zheng, Xiangdong Tang, Yongxin Bao, Yunxia Zuo
Journal Article
Ecological compensation based on willingness to accept for conservation of drinking water sources
Linyu XU,Bing YU,Yang LI
Journal Article
Analytical and numerical investigation into the longitudinal vibration of uniform nanotubes
Masoud MASOUMI,Mehdi MASOUMI
Journal Article
Molecular dynamics investigation of mechanical properties of single-layer phagraphene
Ali Hossein Nezhad SHIRAZI
Journal Article
Numerical investigation of aerodynamic performance influenced by circumferentially pre-swirling coming
WANG Qikun, CHEN Kangmin
Journal Article
Experimental investigation of the influence on static and cyclic deformation of structural soft clay
CHEN Yunmin, CHEN Yingping, HUANG Bo
Journal Article
Numerical investigation of the effects of fuel spray type on the interaction of fuel spray and hot porous
ZHAO Zhiguo, XIE Maozhao
Journal Article
Experimental investigation on desiccant air-conditioning system in India
Vijay MITTAL, B. Kant KHAN,
Journal Article
An investigation into the vibration of harmonic drive systems
M. Masoumi, H. Alimohammadi
Journal Article
An investigation on prevalent strategies for XFEM-based numerical modeling of crack growth in porous
Journal Article
Test investigation on hydraulic losses in the discharge passage of an axial-flow pump
QIU Baoyun, CAO Haihong, JIANG Wei, GAO Zhaohui, WANG Fei
Journal Article