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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 fall

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 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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Dynamic simulation of GEH-IES with distributed parameter characteristics for hydrogen-blending transportation

Frontiers in Energy doi: 10.1007/s11708-023-0914-4

Abstract: energy system (IES), making it more problematic to cope with the equipment failure, demand response and dynamicNevertheless, dynamic simulation of distribution parameters of gas–electricity–hydrogen (GEH) energy

Keywords： gas–electricity IES     dynamic simulation     hydrogen blending     power to gas (P2G)     renewable energy    

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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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Research on the dynamic mechanical characteristics and turning tool life under the conditions of excessively

Genghuang HE, Xianli LIU, Fugang YAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 329-334 doi: 10.1007/s11465-012-0303-x

Abstract:

The dynamic mechanical characteristics of excessively heavy-duty cutting were analyzed based on theBy investigating the influence of dynamic mechanical characteristics on the tools’ failure in limitedheavy-duty cutting processes, the model of dynamic shearing force in the cutting area was establishedHowever, the experimental results showed that the dynamic shear flow stress in the cutting area greatly

Keywords： extreme loading cutting     shear flow stress     dynamic cutting force     fatigue fracture    

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Dynamic characteristics of a shrouded blade with impact and friction

Xumin GUO, Jin ZENG, Hui MA, Chenguang ZHAO, Lin QU, Bangchun WEN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 209-226 doi: 10.1007/s11465-019-0566-6

Abstract: A simplified computational model of a twisted shrouded blade with impact and friction is established. In this model, the shrouded blade is simulated by a flexible Timoshenko beam with a tip-mass, and the effects of centrifugal stiffening, spin softening, and Coriolis force are considered. Impact force is simulated using a linear spring model, and friction force is generated by a tangential spring model under sticking state and a Coulomb friction model under sliding state. The proposed model is validated by a finite element model. Then, the effects of initial gap and normal preload, coefficient of friction, and contact stiffness ratio (the ratio of tangential contact stiffness to normal contact stiffness) on system vibration responses are analyzed. Results show that resonant peaks become inconspicuous and impact plays a dominant role when initial gaps are large between adjacent shrouds. By contrast, in small initial gaps or initial normal preloads condition, resonant speed increases sharply, and the optimal initial normal preloads that can minimize resonant amplitude becomes apparent. Coefficient of friction affects the optimal initial normal preload, but it does not affect vibration responses when the contact between shrouds is under full stick. System resonant amplitude decreases with the increase of contact stiffness ratio, but the optimal initial normal preload is unaffected.

Keywords： twisted shrouded blade     dynamic analysis     impact     friction     separate–stick–slip motion    

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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 correspondingdeformation of the ball-screw under periodically varying heat sources, this paper describes the thermal dynamiccharacteristics of the ball-screw under such conditions.By 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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Effect of dilution rate on dynamic and steady-state biofilm characteristics during phenol biodegradation

Veena Bangalore Rangappa, Vidya Shetty Kodialbail, Saidutta Malur Bharthaiyengar

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0863-9

Abstract: Dynamic and steady state biofilm characteristics depend on dilution rate (DR).paper reports the studies on the effect of dilution rate on the physical, chemical and morphological characteristicsThus, the performance of PPBR in terms of dynamic and steady-state biofilm characteristics associated

Keywords： Biofilm     Exopolymeric substances     Phenol     Dilution rate     Pulsed plate bioreactor    

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Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 9-9 doi: 10.1007/s11465-021-0665-z

Abstract: This paper aims to establish the model of mesh relationship and reveal the vibration characteristicsBased on the mesh stiffness and USTE considering gear wear, a gear dynamic model is established, andthe vibration characteristics of gear wear are numerically studied.Comparison with the experimental results verifies the proposed dynamic model based on the new mesh relationship

Keywords： gear wear     mesh relationship     mesh stiffness     transmission error     vibration characteristics    

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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: By solving the amplitude-frequency characteristics and phase-frequency characteristics of the transfersteady-state response of thermal deformation of the ballscrew is obtained, and the thermal dynamics characteristicsThrough 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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Dynamic characteristics of a magnetorheological pin joint for civil structures

Yancheng LI,Jianchun LI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 15-33 doi: 10.1007/s11465-014-0283-0

Abstract: A test scheme is designed to obtain the dynamic performance of MR pin joint in the dominant earthquakecomputationally-efficient model is proposed by introducing a hyperbolic element to accurately reproduce its dynamic

Keywords： Magnetorheological pin joint     hyperbolic hysteresis model experimental testing frequency dependence    

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Title Author Date Type Operation

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 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

Dynamic simulation of GEH-IES with distributed parameter characteristics for hydrogen-blending transportation

Journal Article

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

ZHU Zhiwen, WANG Zhaoxiang, CHEN Zhengqing

Journal Article

Research on the dynamic mechanical characteristics and turning tool life under the conditions of excessively

Genghuang HE, Xianli LIU, Fugang YAN

Journal Article

Dynamic characteristics of a shrouded blade with impact and friction

Xumin GUO, Jin ZENG, Hui MA, Chenguang ZHAO, Lin QU, Bangchun WEN

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

Effect of dilution rate on dynamic and steady-state biofilm characteristics during phenol biodegradation

Veena Bangalore Rangappa, Vidya Shetty Kodialbail, Saidutta Malur Bharthaiyengar

Journal Article

Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

Journal Article

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

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

Journal Article

Dynamic characteristics of a magnetorheological pin joint for civil structures

Yancheng LI,Jianchun LI

Journal Article