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Study on anti-sliding stability of hydraulic structures on subbed soils

Zhou Junliang

Strategic Study of CAE 2010, Volume 12, Issue 3, Pages 4-14

Abstract:

To make a study on the anti-sliding stablity of foundation of hydraulicstructures on subbed soils, and based on the result by anti-sliding tests of dragged concreting clipplates in foundation pits, the anti-sliding stablity of foundation on subbed soils was determind.It is worked out a design method to determine the sliding frictional resistances and the forms of slidingstructure;a formula for the the anti-sliding move of subbed soils and a rule to distinguish the plane

Keywords： anti-sliding test of dragged concreting clip plates the forms of the largest displacement and slidingmove anti-sliding friction coefficient design and calculation wethod

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Study on anti-sliding stability of hydraulic structures on subbed soils (continued)

Zhou Junliang

Strategic Study of CAE 2011, Volume 13, Issue 9, Pages 22-30

Abstract:

A study on the anti-sliding stability of hydraulic structures on subbedUsing the anti-sliding test results of dragged concreting pressure plate in foundation pits, the decreasedvalue of anti-sliding bearing capacity after spring back influenced of subbed soil is determined; envelopeof anti-sliding shear stress and friction coefficient are also quantitatively determined.and creepy slippage of subbed soil, to determine sliding contour creep, and limit the maximum compressive

Keywords： anti-sliding test of dragged concreting pressure plate strength envelop of shear stress friction coefficient forms of displacement and sliding creep slippage of subbed soil design and calculation method

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Friction Theory for Toroidal Drive

Xu Lizhong,Huang Zhen

Strategic Study of CAE 2002, Volume 4, Issue 3, Pages 63-67

Abstract: the relationship between relative motions of the toroidal drive, the method for calculation of the slidingBased on above-mentioned results, formulae of the friction coefficient between the planet and statorBased on EHL theory, formulae of the friction coefficient between the planet and stator or worm underThen, formulae of the friction coefficient between the planet and stator or worm under mixed frictionDependences of the friction coefficient between the planet and stator on the parameters under profile

Keywords： toroidal drive friction coefficient sliding factor

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Anti-sliding safety assessment for main saddle on middle tower of Taizhou Bridge

Ruan Xin,Ruan Jing,Chen Airong and Guo Ji

Strategic Study of CAE 2012, Volume 14, Issue 5, Pages 71-74

Abstract: Three methods to assess the safety of saddle sliding on middle tower of the Taizhou Bridge are presentedprobabilistic model of load effect and structure resistance is established, and reliability index of anti-sliding

Keywords： three-tower two-span suspension bridge middle tower saddle deterministic assessment probabilistic assessment

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Interfacial potential barrier theory of friction and wear

XU Zhongming, DING Lingyun, HUANG Ping, XU Zhongming

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3, Pages 276-282 doi: 10.1007/s11465-008-0043-0

Abstract: An interfacial potential barrier theory to calculate friction and wear is proposed by considering theThe theory suggests that the performance of friction and wear depends on the magnitude and distributionbarrier and standard interfacial potential barrier are then studied and the formulas to calculate the frictionforce, friction coefficient, and quantity of adhesion wear are derived based on the theory.The calculation results of the friction force with some existing experimental data are consistent with

Keywords： coefficient standard interfacial interaction formulas calculation

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Effect of friction coefficients on the dynamic response of gear systems

Lingli JIANG, Zhenyong DENG, Fengshou GU, Andrew D. BALL, Xuejun LI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3, Pages 397-405 doi: 10.1007/s11465-017-0415-4

Abstract: The change in the lubrication conditions is modeled by the changes in the friction coefficients, therebydemonstrated by the mean and root mean square values calculated by the simulated responses under different friction

Keywords： dynamic response friction coefficient wind loads wind turbine gearbox

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Tribological properties of onion like fullerenes and NiFe

Ruixiang WANG,Yihao ZHANG,Haizhou WU

Frontiers in Energy 2021, Volume 15, Issue 1, Pages 208-212 doi: 10.1007/s11708-017-0454-x

Abstract: A novel way for a compressor to improve its coefficient of performance and enhance its reliability byrefrigeration lubricants additive were investigated using SRV (II), a multi-functional reciprocating frictionThe results showed that the friction coefficient was decreased from 0.15 to 0.04.

Keywords： refrigeration lubricants friction coefficient nano-composites reciprocating motion onion like fullerenes

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Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe

Ruixiang WANG,Yihao ZHANG,Yi LIAO

Frontiers in Energy 2020, Volume 14, Issue 3, Pages 644-648 doi: 10.1007/s11708-017-0453-y

Abstract: A novel way for a compressor to improve its coefficient of performance was proposed in this paper.Besides, the tribological properties of the nanocomposites were investigated using a four ball frictionconcentration of fullerenes nanocomposite is higher than 60 ppm and the concentration of nano-oil is 2 g/L, the frictioncoefficient decreases from 0.13 to 0.06 which means the wear is reduced.The coefficient of performance of the compressor under the air conditioning test condition can be raised

Keywords： rotary compressor friction coefficient nanocomposite materials coefficient of performance fullerenes

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Testing development of different surface treatments on pervious concrete

Mina YEKKALAR,Liv HASELBACH,Quinn LANGFITT

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4, Pages 385-393 doi: 10.1007/s11709-016-0351-0

Abstract: pervious concrete specimens both qualitatively from personal judgements, and quantitatively through static frictionspring balance test may be an acceptable methodology for comparative analyses with respect to static friction

Keywords： pervious concrete static coefficient of friction pedestrian

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Coulomb-type solutions for passive earth pressure with steady seepage

WANG Junjie, CHAI Hejun, LIN Xin, XU Jiamei

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 1, Pages 56-66 doi: 10.1007/s11709-008-0001-2

Abstract: on the general solutions, the variations of the critical inclination of the failure surface and the coefficientof passive earth pressure with increasing the effective friction angle of the soil mass, the soil/structurefriction angle, and the water/soil unit weight ratio are discussed.

Keywords： function coefficient Coulomb-type effective friction different drainage

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Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4, Pages 433-438 doi: 10.1007/s11465-007-0074-y

Abstract: actuator influenced by the mass of the metal sphere of the micro actuator, driving signal frequency, frictioncoefficient of the contact surface between the metal sphere and the friction block of the micro driving

Keywords： spherical micro-gripper friction coefficient dynamic frequency

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Stiction and Friction in Micro Electro Mechanical Systems

Wang Weiyuan

Strategic Study of CAE 2000, Volume 2, Issue 3, Pages 36-41

Abstract: Coating of anti-stiction films on the surface of Si microstructures and packaging of devices under dryThe preparation technology of anti-stiction films and its problems are described.Comparing with stiction, the friction is more complex.After using anti-stiction films, the stiction is fully prevented, and even the friction is apparentlyTo fabricate the films with anti-stiction and wear-resitsting ability are the key research projects in

Keywords： micro electro mechanical systems stiction friction anti-stiction films wear-resisting films

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Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Frontiers in Energy 2020, Volume 14, Issue 4, Pages 836-849 doi: 10.1007/s11708-017-0444-z

Abstract: It describes a coupling of sliding mode direct torque control (DTC) with sliding mode flux and speedThis algorithm uses direct torque control basics and the sliding mode approach.The sliding mode controller is used to generate reference voltages in stationary frame and give themThe second aim of this paper is to design a sliding mode speed/flux observer which can improve the control

Keywords： induction motor direct torque control (DTC) space vector modulation (SVM) sliding mode control (SMC) sliding mode observer (SMO) dS1104

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Obstacle-circumventing adaptive control of a four-wheeled mobile robot subjected to motion uncertainties

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0753-3

Abstract: Specifically, a novel anti-disturbance terminal slide mode control with adaptive gains is formulated,

Keywords： four-wheeled mobile robot obstacle-circumventing adaptive control adaptive anti-disturbance terminalsliding mode control sub-target dynamic tracking regression obstacle avoidance

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Analysis of nonlinear channel friction inverse problem

CHENG Weiping, LIU Guohua

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2, Pages 205-210 doi: 10.1007/s11709-007-0024-0

Abstract: decomposition (SVD) for general inverse matrices and the optimization algorithm are used to solve the channel frictionThe resolution and covariance friction inverse model in matrix form is developed to examine the reliability

Keywords： singular SVD second-order covariance Theoretical