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Transfer function solving, simulating and testing of thermal dynamics characteristics of a ballscrew

Junyong XIA, Bo WU, Youmin HU, Tielin SHI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 233-241 doi: 10.1007/s11465-010-0014-0

Abstract: Based on the theory of heat transfer, the transfer function between the thermal deformation of any pointBy solving the amplitude-frequency characteristics and phase-frequency characteristics of the transferfunction, the steady-state response of thermal deformation of the ballscrew is obtained, and the thermaldynamics characteristics of the lead screw under the influence of multi-heat sources are further studiedThrough tests of the steady-state response of thermal deformation, the thermal dynamics characteristics

Keywords： ballscrew     Laplace transform     transfer function     thermal dynamic characteristics    

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Numerical solution, simulation and testing of the thermal dynamic characteristics of ball-screws

XIA Junyong, HU Youmin, WU Bo, SHI Tielin

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 28-36 doi: 10.1007/s11465-008-0007-4

Abstract: This research focuses on the characteristics of how a ball-screw changes its temperature correspondingBy simulating and modeling the temperature field and thermal deformation of the ball-screw under periodicallyvarying heat sources, this paper describes the thermal dynamic characteristics of the ball-screw underBy testing the thermal dynamic characteristics of the ball-screw, the numerical solution is validated

Keywords： numerical solution     temperature corresponding     temperature distribution     end-most     ball-screw    

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Numerical study of thermal characteristics of double skin facade system with middle shade

Shaoning LIU, Xiangfei KONG, Hua YANG, Minchao FAN, Xin ZHAN

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 222-234 doi: 10.1007/s11708-017-0480-8

Abstract: In this paper, a 3D dynamic simulation was conducted to analyze the influence of MS combined with DSFon the indoor thermal characteristics.the shade in the three seasons are different, and different conditions effectively enhance the indoor thermalcharacteristics.According to the climate characteristics of winter and transition season, in winter, early spring, and

Keywords： middle shade     position     thermal characteristics     double skin facade    

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Dynamic characteristics of molten droplets and hot particles falling in liquid pool

Liangxing LI, Weimin MA, Huixiong LI, Tingkuan CHEN,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 246-251 doi: 10.1007/s11708-009-0077-y

Abstract: The dynamic characteristics of molten droplets and hot particles at the very beginning of their fallA high melting point and thermal conductivity as well as lower heat capacity contribute to dramatic variation

Keywords： dynamic characteristics     molten droplets     high-temperature particles     fuel and coolant interactions    

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Air-bearing position optimization based on dynamic characteristics of ultra-precision linear stages

CHEN Xuedong, LI Zhixin

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 400-407 doi: 10.1007/s11465-008-0060-z

Abstract: emulate the complex interaction of the finite element model (FEM) developed in this paper and the system dynamicHowever, the dynamic characteristics including mode frequency, mode shape, and response amplitude areThe best and worst positions are obtained using the dynamic characteristic analysis.the connection position of different components in manufacture elements and to implement the system dynamiccharacteristics optimization when the connection position can be changed.

Keywords： manufacture     different     interaction     air-bearings     response amplitude    

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Dynamic characteristics of NC table with SVD

WANG Linhong, WU Bo, DU Runsheng, YANG Shuzi

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 385-391 doi: 10.1007/s11465-008-0052-z

Abstract: This paper employs the SVD (singular value decomposition) method to study dynamic characteristics ofsingular spectrum of the signals is acquired with SVD; principal components of the signals are found out; dynamiccharacteristics of the signals and their contributing factors are studied by extracting dynamic characteristicsResults indicate that signal characteristics of the previous two principal components are apparent, basedon which dynamic characteristics of chaotic signal can be extracted.

Keywords： Acceleration     vibration source     chaotic     energy     dynamic    

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Experimental investigations on operating characteristics of a closed loop pulsating heat pipe

Yu WANG

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 134-141 doi: 10.1007/s11708-015-0354-x

Abstract: The operating characteristics were studied for the variation of heat input, filling ratio (FR) and inclinationImportant insight into the operational characteristics of PHP has been obtained.

Keywords： closed loop pulsating heat pipe     thermal performance     operation limit     thermography    

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Thermal and hydraulic characteristics of a large-scaled parabolic trough solar field (PTSF) under cloud

Linrui MA, Zhifeng WANG, Ershu XU, Li XU

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 283-297 doi: 10.1007/s11708-019-0649-4

Abstract: To better understand the characteristics of a large-scaled parabolic trough solar field (PTSF) undercloud passages, a novel method which combines a closed-loop thermal hydraulic model (CLTHM) and cloudsimulation, all essential parameters, such as the total flowrate, flow distribution, outlet temperature, thermalIn addition, the mechanism of thermal and hydraulic unbalance caused by cloud passages are explained

Keywords： parabolic trough solar field (PTSF)     thermal hydraulic model     cloud passages     transients    

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Experimental research on dynamic operating characteristics of a novel silica gel-water adsorption chiller

WANG Dechang, WU Jingyi, WANG Ruzhu, DOU Weidong

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 347-351 doi: 10.1007/s11708-007-0052-4

Abstract: The dynamic operating characteristics of the chiller and the thermodynamic characteristics of the adsorberThe experimental results show that the dynamic operating characteristics of the chiller and the thermodynamiccharacteristics of the adsorber are satisfactory and that the cycle is a novel and effective adsorption

Keywords： satisfactory     suitable     recovery     adsorption capacity     thermodynamic    

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Dynamic characteristics analysis of active constrained layer damping plate with various boundary conditions

Jing LU, Yu XIANG, Qiao NI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 449-455 doi: 10.1007/s11465-011-0240-0

Abstract: precision integration approach, a high precision semi-analytical method was proposed to analyze the dynamiccharacteristics of the ACLD plate with various boundary conditions.

Keywords： active constrained layer damping (ACLD) plate     dynamic characteristics     semi-analytical method     extended    

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On the improvement design of dynamic characteristics for the roller follower of a variable-speed plate

Hui Ching FAN, Hong Sen YAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 5-15 doi: 10.1007/s11465-012-0310-y

Abstract: a variable input speed trajectory offers an alternative solution to flexibly achieve kinematic and dynamiccharacteristics, and then decrease the follower’s residual vibration.Then the motion characteristics between the plate cam and its roller follower are derived.Based on the motion equation derived from the dynamic model, the residual vibration of the follower isThe design procedure to improve the kinematic and dynamic motion characteristics is presented and two

Keywords： cam mechanism     variable input speed     kinematic design     dynamic design     optimal design    

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Theory analysis and system identification methods on thermal dynamics characteristics of ballscrews

XIA Junyong, HU Youmin, WU Bo, SHI Tielin

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 408-415 doi: 10.1007/s11465-008-0061-y

Abstract: Empirical model of machine tools on thermal error has been widely researched, which can compensate forthermal error to some extent but not suitable for thermal dynamic errors produced by dynamic heat sourcesidentification and BP artificial neural network (ANN) system identification) are put forward to establish a dynamiccharacteristic model of thermal deformation of ballscrews.The model of thermal error of the axis in a feed system of DM4600 vertical miller is established with

Keywords： square system     network     vertical miller     transfer     ANN    

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Isogeometric analysis of coupled thermo-elastodynamic problems under cyclic thermal shock

Asghar AMANI DASHLEJEH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 397-405 doi: 10.1007/s11709-018-0473-7

Abstract: the proposed method was verified against a two-dimensional benchmark example subjected to constant thermalThen a two-dimensional half-space benchmark example under thermal shock was solved.Finally, cyclic thermal shock (CTS) loading was applied on the half-space problem.

Keywords： isogeometric analysis     coupled thermo-elastodynamic     dynamic analysis     generalized newmark     cyclic thermal    

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Computational fluid dynamic analysis of flutter characteristics for self-anchored suspension bridges

ZHU Zhiwen, WANG Zhaoxiang, CHEN Zhengqing

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 267-273 doi: 10.1007/s11709-008-0034-6

Abstract: This paper outlines the essentials and procedures of computational fluid dynamics (CFD) simulation applicable to evaluating flutter derivatives of bridge decks. An arbitrary Lagrangian-Eulerian (ALE) description of the flow around the moving rigid box girder combined with the finite volume discretization and multi-grid algorithm is presented. The proposed methods are employed to identify flutter derivatives of the bridge deck of the Sanchaji Self-anchored Suspension Bridge. The results agree well with ones from wind tunnel tests. It demonstrates accuracy and efficiency of the present method.

Keywords： discretization     computational     description     Self-anchored Suspension     simulation applicable    

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Thermal analysis of lubricated three-dimensional contact bodies considering interface roughness

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0672-8

Abstract: Surface roughness and thermal action are of remarkable importance in the lubrication performance of mechanicaltemperature rise and real 3D surface roughness due to the complexity of surface topography and temperature characteristicsIn this paper, a deterministic mixed thermal elastohydrodynamic lubrication model considering real 3Dsurface roughness and thermal effects is proposed.The influences of surface roughness and thermal effect on lubrication performance are revealed.

Keywords： thermal elastohydrodynamic lubrication     surface roughness effect     thermal effect     temperature characteristics    

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Title Author Date Type Operation

Transfer function solving, simulating and testing of thermal dynamics characteristics of a ballscrew

Junyong XIA, Bo WU, Youmin HU, Tielin SHI,

Journal Article

Numerical solution, simulation and testing of the thermal dynamic characteristics of ball-screws

XIA Junyong, HU Youmin, WU Bo, SHI Tielin

Journal Article

Numerical study of thermal characteristics of double skin facade system with middle shade

Shaoning LIU, Xiangfei KONG, Hua YANG, Minchao FAN, Xin ZHAN

Journal Article

Dynamic characteristics of molten droplets and hot particles falling in liquid pool

Liangxing LI, Weimin MA, Huixiong LI, Tingkuan CHEN,

Journal Article

Air-bearing position optimization based on dynamic characteristics of ultra-precision linear stages

CHEN Xuedong, LI Zhixin

Journal Article

Dynamic characteristics of NC table with SVD

WANG Linhong, WU Bo, DU Runsheng, YANG Shuzi

Journal Article

Experimental investigations on operating characteristics of a closed loop pulsating heat pipe

Yu WANG

Journal Article

Thermal and hydraulic characteristics of a large-scaled parabolic trough solar field (PTSF) under cloud

Linrui MA, Zhifeng WANG, Ershu XU, Li XU

Journal Article

Experimental research on dynamic operating characteristics of a novel silica gel-water adsorption chiller

WANG Dechang, WU Jingyi, WANG Ruzhu, DOU Weidong

Journal Article

Dynamic characteristics analysis of active constrained layer damping plate with various boundary conditions

Jing LU, Yu XIANG, Qiao NI

Journal Article

On the improvement design of dynamic characteristics for the roller follower of a variable-speed plate

Hui Ching FAN, Hong Sen YAN

Journal Article

Theory analysis and system identification methods on thermal dynamics characteristics of ballscrews

XIA Junyong, HU Youmin, WU Bo, SHI Tielin

Journal Article

Isogeometric analysis of coupled thermo-elastodynamic problems under cyclic thermal shock

Asghar AMANI DASHLEJEH

Journal Article

Computational fluid dynamic analysis of flutter characteristics for self-anchored suspension bridges

ZHU Zhiwen, WANG Zhaoxiang, CHEN Zhengqing

Journal Article

Thermal analysis of lubricated three-dimensional contact bodies considering interface roughness

Journal Article