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Calculation of collision frequency function for aerosol particles in free molecule regime in presence

Xiaowei LUO, Yannick BENICHOU, Suyuan YU

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 506-510 doi: 10.1007/s11708-013-0275-5

Abstract: The collision frequency function for aerosol particles has already been calculated for the free moleculemagnetic force, electric force and molecular forces, created by particles themselves, recalculated the collisionfrequency in the case of particles much smaller than the mean free path of the gas (free molecule regimeAttractive forces increase naturally the collision frequency, while repulsive forces decrease it.

Keywords： aerosol particles     collision frequency function     coagulation    

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Anti-collision monitoring based on detecting casing head vibration induced by drill movements

He Baosheng,Liu Gang,Wang Shuangping,Wen Min

Strategic Study of CAE 2011, Volume 13, Issue 5,   Pages 74-78

Abstract: justify;">Now encryption adjustment wells are getting widely used in offshore, and the risk of well collisionWell anti-collision is becoming more and more important.An anti-collision monitoring system based on detecting casing head vibration induced by drilling movementsacceleration sensors were fixed on the casing head to fell the vibration, the time domain analysis and frequencyIt also indicates that the anti-collision monitoring system for detecting casing head vibration is practicable

Keywords： encryption adjustment well     anti-collision     risk well     vibration signal     time domain analysis     frequency    

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An efficient stochastic dynamic analysis of soil media using radial basis function artificial neural

P. ZAKIAN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 470-479 doi: 10.1007/s11709-017-0440-8

Abstract: this study, the stochastic dynamic analysis of soil mass is performed by finite element method in the frequency

Keywords： stochastic analysis     random seismic excitation     finite element method     artificial neural network     frequency    

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Calculation and research on deepwater drilling riser flexural equation and natural frequency

Jiang Wei

Strategic Study of CAE 2011, Volume 13, Issue 5,   Pages 66-73

Abstract: Therefore, simple calculation method for natural frequency of drilling riser was achieved.

Keywords： deepwater drilling     drilling riser     flexural equation     natural frequency     shape function    

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The research of ship-bridge collision protection system for Taizhou Bridge

Shen Gang,Fu Yaohua,Jin Yunnlong

Strategic Study of CAE 2010, Volume 12, Issue 4,   Pages 73-77

Abstract:

The risk of ship collision to the center tower located at the edge ofcombination of ship navigation planning, bridge parameters and characteristics of bridge foundation, the ship collisionThe safety of the bridge and effectiveness of the protection system under ship collision is studied by

Keywords： ship-bridge collision     ship-collision force     the numerical simulation of ship collision     pile supported    

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An Intelligent System for Navigation Collision Prevention

Hao Yanling,Liu Yuhong,Sun Feng,Sun Yao

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 48-53

Abstract:

The purpose of this thesis is to developing and exploiting an intelligent system for collision prevention, namely “Intelligent Collision Prevention Expert System for Navigation”(NICPES).KR, procedure KR and neural network KR, to represent and store all kinds of knowledge for navigation collisionFor-some problems in collision prevention region, the NICPES builds a set of models to solve them.These models comprise the models of judging collision risk, the model of determining collision prevention

Keywords： collision prevention     expert system     neural network     fuzzy technique     multi-target optimizing    

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Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of preload

Ye GAO, Wei SUN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 358-368 doi: 10.1007/s11465-019-0539-9

Abstract: identifying such parameters was described based on the measured natural frequencies and amplitudes of the frequencyResults indicated that the support stiffness and damping of the hoop exhibited frequency-dependent characteristics

Keywords： inverse identification     pipeline hoop     frequency response function     mechanical parameters     preload    

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Identification of dynamic stiffness matrix of bearing joint region

Feng HU, Bo WU, Youmin HU, Tielin SHI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 289-299 doi: 10.1007/s11465-009-0064-3

Abstract: The dynamic stiffness matrix of the bearing joint region can be identified by measuring the matrix of frequencyresponse function (FRFs) of the substructure (axle) and whole structure (assembly of the axle, bearing

Keywords： frequency response function (FRFs)     dynamic stiffness     finite element     synthetic substructure method     joint    

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Frequency-hopping transmitter fingerprint feature recognition with kernel projection and joint representation Research Articles

Ping SUI, Ying GUO, Kun-feng ZHANG, Hong-guang LI

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 8,   Pages 1133-1146 doi: 10.1631/FITEE.1800025

Abstract: Frequency-hopping (FH) is one of the commonly used spread spectrum techniques that finds wide applications

Keywords： Frequency-hopping     Fingerprint feature     Kernel function     Joint representation     Transmitter recognition    

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Modeling and analysis of landing collision dynamics for a shipborne helicopter

Dingxuan ZHAO, Haojie YANG, Carbone GIUSEPPE, Wenhang LI, Tao NI, Shuangji YAO

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 151-162 doi: 10.1007/s11465-020-0617-z

Abstract: based on small-angle approximation to improve the simulation model for shipborne helicopter landing collisionResults show that the proposed dynamic model can simulate the collision motion of helicopter landing

Keywords： shipborne helicopter     landing model     Lagrange equations     dynamics     validation    

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Effects of elastic support on the dynamic behaviors of the wind turbine drive train

Shuaishuai WANG, Caichao ZHU, Chaosheng SONG, Huali HAN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 348-356 doi: 10.1007/s11465-017-0420-7

Abstract: Frequency response functions were used to examine how different elastic support parameters influence

Keywords： wind turbine drive train     elastic support     dynamic behavior     frequency response function    

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Controlling the contact levels of details for fast and precise haptic collision detection Article

A Ram CHOI, Sung Min KIM, Mee Young SUNG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8,   Pages 1117-1130 doi: 10.1631/FITEE.1500498

Abstract: For accurate and stable haptic rendering, collision detection for interactive haptic applications hasdetails (CLOD), which can fit objects while maintaining the balance between high speed and precision of collisionOur method is composed mainly of two parts: bounding sphere formation and two-level collision detectionTwo-level collision detection has two stages as well: fast detection of spheres and precise detectionOnce a collision is probed, a more precise detection is executed by examining the distance between a

Keywords： Collision detection     Haptic rendering     Bounding sphere     Clustering     Contact levels of details (CLOD)    

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Using improved particle swarm optimization totune PID controllers in cooperative collision avoidance Article

Xing-chen WU, Gui-he QIN, Ming-hui SUN, He YU, Qian-yi XU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1385-1395 doi: 10.1631/FITEE.1601427

Abstract: The introduction of proportional-integral-derivative (PID) controllersinto cooperative collision avoidancecontrollers usingan improved particle swarm optimization (PSO) algorithm, and to bettermanipulate cooperative collision

Keywords： Cooperative collision avoidance system (CCAS)     Improved particle swarm optimization (PSO)     PID controller    

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A frequency error estimation for isogeometric analysis of Kirchhoff–Love cylindrical shells

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0006-x

Abstract: A frequency error estimation is presented for the isogeometric free vibration analysis of Kirchhoff–LoveBy analyzing the discrete isogeometric equations with the aid of harmonic wave assumption, the frequencyIn particular, the governing relationship of the continuum frequency for Kirchhoff–Love cylindrical shellsis naturally embedded into the frequency error measures without the need of explicit frequency expressionsNumerical results not only thoroughly verify the theoretical convergence rates of frequency solutions

Keywords： isogeometric analysis     Kirchhoff–Love cylindrical shell     free vibration     frequency error     convergence    

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Dynamic response of precast segmental bridge columns under heavy truck impact

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 327-349 doi: 10.1007/s11709-023-0911-z

Abstract: simulation results demonstrated that the engine and cargo caused two major peak impact forces during collision

Keywords： precast segmental bridge columns     heavy truck     collision     dynamic response    

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Title Author Date Type Operation

Calculation of collision frequency function for aerosol particles in free molecule regime in presence

Xiaowei LUO, Yannick BENICHOU, Suyuan YU

Journal Article

Anti-collision monitoring based on detecting casing head vibration induced by drill movements

He Baosheng,Liu Gang,Wang Shuangping,Wen Min

Journal Article

An efficient stochastic dynamic analysis of soil media using radial basis function artificial neural

P. ZAKIAN

Journal Article

Calculation and research on deepwater drilling riser flexural equation and natural frequency

Jiang Wei

Journal Article

The research of ship-bridge collision protection system for Taizhou Bridge

Shen Gang,Fu Yaohua,Jin Yunnlong

Journal Article

An Intelligent System for Navigation Collision Prevention

Hao Yanling,Liu Yuhong,Sun Feng,Sun Yao

Journal Article

Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of preload

Ye GAO, Wei SUN

Journal Article

Identification of dynamic stiffness matrix of bearing joint region

Feng HU, Bo WU, Youmin HU, Tielin SHI

Journal Article

Frequency-hopping transmitter fingerprint feature recognition with kernel projection and joint representation

Ping SUI, Ying GUO, Kun-feng ZHANG, Hong-guang LI

Journal Article

Modeling and analysis of landing collision dynamics for a shipborne helicopter

Dingxuan ZHAO, Haojie YANG, Carbone GIUSEPPE, Wenhang LI, Tao NI, Shuangji YAO

Journal Article

Effects of elastic support on the dynamic behaviors of the wind turbine drive train

Shuaishuai WANG, Caichao ZHU, Chaosheng SONG, Huali HAN

Journal Article

Controlling the contact levels of details for fast and precise haptic collision detection

A Ram CHOI, Sung Min KIM, Mee Young SUNG

Journal Article

Using improved particle swarm optimization totune PID controllers in cooperative collision avoidance

Xing-chen WU, Gui-he QIN, Ming-hui SUN, He YU, Qian-yi XU

Journal Article

A frequency error estimation for isogeometric analysis of Kirchhoff–Love cylindrical shells

Journal Article

Dynamic response of precast segmental bridge columns under heavy truck impact

Journal Article