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Dynamic characteristics of an NC table with phase space reconstruction

Linhong WANG, Bo WU, Runsheng DU, Shuzi YANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 179-183 doi: 10.1007/s11465-009-0018-9

Abstract: Based on the theory and method for phase space reconstruction, the correlation dimension, maximum Lyapunovexponent, and dynamic time series measured from the NC table were analyzed.characteristic quantities such as the power spectrum, phase trajectories, correlation dimension, and maximum Lyapunovexponent are extracted from the measured time series.

Keywords： NC table     chaotic characteristic     phase-space reconstruction     correlation dimension     maximum Lyapunov exponent    

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Parameter value selection strategy for complete coverage path planning based on the Lü system to perform specific types of missions Research Article

Caihong LI, Cong LIU, Yong SONG, Zhenying LIANG

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 2,   Pages 231-244 doi: 10.1631/FITEE.2200211

Abstract: We propose a novel for the ; to construct a chaotic robot to accomplish the task. The algorithm can meet the requirements of high randomness and coverage rate to perform specific types of missions. First, we roughly determine the value range of the parameter of the ; to meet the requirement of being a dissipative . Second, we calculate the s to narrow the value range further. Next, we draw the phase planes of the to approximately judge the topological distribution characteristics of its trajectories. Furthermore, we calculate the of the variable for those good ones to judge its random characteristics. Finally, we construct a chaotic robot using variables with the determined parameter values and simulate and test the coverage rate to study the relationship between the coverage rate and the random characteristics of the variables. The above selection strategy gradually narrows the value range of the parameter according to the randomness requirement of the coverage trajectory. Using the proposed strategy, proper variables can be chosen with a larger to construct a chaotic robot with a higher coverage rate. Another chaotic , the Lorenz , is used to verify the feasibility and effectiveness of the designed strategy. The proposed strategy for enhancing the coverage rate of the mobile robot can improve the efficiency of accomplishing CCPP tasks under specific types of missions.

Keywords： mobile robot     Lü     system     Complete coverage path planning (CCPP)     Parameter value selection strategy     Lyapunovexponent     Pearson correlation coefficient    

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Robust control based on the Lyapunov theory of a grid-connected doubly fed induction generator

Ridha CHEIKH, Arezki MENACER, Said DRID

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 191-196 doi: 10.1007/s11708-013-0245-y

Abstract: So, to achieve this objective, the Lyapunov approach is used associated with a sliding mode control to

Keywords： doubly fed induction generator (DFIG)     vector control     Lyapunov function     power factor unity     active power    

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Numerical Investigation of the Pressure Exponent in Gas Turbine Combustor Efficiency Similitude Study

Yang Rui,Wang Yingshi

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 83-87

Abstract:

The effect of combustion process on the pressure exponent N in gas turbine combustor efficiency similitudeIt is suggested that for hydrocarbon fuel, the pressure exponent N may be selected as 1.6〜2.0 when the

Keywords： combustor efficiency similitude study     pressure exponent     numerical simulation    

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Model reduction of contact dynamics simulation using a modified Lyapunov balancing method

Jianxun LIANG, Ou MA, Caishan LIU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 383-391 doi: 10.1007/s11465-011-0244-9

Abstract: reduction approach for finite-element based multibody contact dynamics simulation, based on a modified Lyapunov

Keywords： contact dynamics     dynamic simulation     model reduction     finite element method    

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Robust direct power control based on the Lyapunov theory of a grid-connected brushless doubly fed induction

M. Abdelbasset MAHBOUB,Said DRID,M. A. SID,Ridha CHEIKH

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 298-307 doi: 10.1007/s11708-016-0411-0

Abstract: Therefore, to achieve this objective, the Lyapunov approach is used associated with a sliding mode control

Keywords： brushless doubly fed induction generator (BDFIG)     vector control     Lyapunov theory     power factor unity     active    

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Robust nonlinear control via feedback linearization and Lyapunov theory for permanent magnet synchronous

Ridha CHEIKH, Arezki MENACER, L. CHRIFI-ALAOUI, Said DRID

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 180-191 doi: 10.1007/s11708-018-0537-3

Abstract: The method is based on the differential geometric feedback linearization technique (DGT) and the Lyapunov

Keywords： conversion system     stochastic     differential geometric     feedback linearization     maximum power point tracking     Lyapunov    

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Construction of a new Lyapunov function for a dissipative gyroscopic system using the residual energy Personal View

Cem CİVELEK, Özge CİHANBEĞENDİ

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 4,   Pages 629-634 doi: 10.1631/FITEE.1900014

Abstract: The Lyapunov function is obtained as a residual energy function (REF).Hamiltonian and losses or dissipative energies (which are negative), and can be used for stability by Lyapunov

Keywords： Lyapunov function     Residual energy function     Stability of dissipative gyroscopic system    

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Guilin University of Electronic Technology ,Guilin,Guangxi 541004,China

Zhang Yuxian,Wang Hong

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 88-91

Abstract:

In order to study the residual stresses of auto fettage super high pressure vessel effectively,  a new model of stress and strain was developed in this paper.  The model is more closer to actual working condition for the steel applied in auto fettage super high pressure vessel through the strict mathematic testification.  The example to be given in this paper states how this model was established and how the error was analyzed.  The same example also shows that solving the new model of stress and strain based on general tensile curves is feasible and reliable indeed.  The model has theoretical signification and engineering practical value to a certain extend.

Keywords： low alloy high strength composite     model of stress and strain     hardening exponent    

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Smooth tracking control for conversionmode of a tilt-rotor aircraft with switching modeling Research Article

Kebi LUO, Shuang SHI, Cong PENG

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 11,   Pages 1591-1600 doi: 10.1631/FITEE.2300266

Abstract: This paper investigates the problem in conversion mode of a with a switching modeling method and a technique. Based on the nonlinear model of the conversion mode, a switched linear model is developed by using the Jacobian linearization method and designing the switching signal based on the mast angle. Furthermore, an scheme is designed to deal with the conversion mode control issue. Moreover, instead of limiting the amplitude of control inputs, a method is developed to create bumpless performance. Finally, the XV-15 is chosen as a prototype to illustrate the effectiveness of this developed control method.

Keywords： Tilt-rotor aircraft     State-tracking control     Switched linear systems     Time-scheduled multiple Lyapunov    

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Extrapolation reconstruction of wind pressure fields on the claddings of high-rise buildings

Yehua SUN, Guquan SONG, Hui LV

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 653-666 doi: 10.1007/s11709-018-0503-5

Abstract: The proposed method does require determination of the Hurst exponent and other parameters analysed from

Keywords： extrapolation reconstruction     proper orthogonal decomposition     Kriging method     von Kármán function     Hurst exponent    

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Improved R /S Method and Analysis and Forecast to China Fire Data

Fu Yuhua,Fu Anjie

Strategic Study of CAE 2004, Volume 6, Issue 5,   Pages 39-44

Abstract: the analysis of total fire number in China, two new data grouping methods for calculating the Hurst exponentThe difference of Hurst exponent AH is introduced to judge the possibility whether or not the next yearFor the R/S analysis of the calculated Hurst exponents, a new group of Hurst exponent H1,i. e. , Hurst exponent of Hurst exponent, and related △H1, can be reached, the rest high orderHurst exponent and related difference H2, △H2, H3, △H3 and

Keywords： R/S analysis     rescaled range analysis     high order Hurst exponent     total fire number of whole country     forecast    

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Adaptive tracking control for air-breathing hypersonic vehicles with state constraints Article

Gong-jun LI

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5,   Pages 599-614 doi: 10.1631/FITEE.1500464

Abstract: velocity, the altitude, and the pitch angle), a modified backstepping design is proposed where the barrier Lyapunov

Keywords： Hypersonic vehicle     Constraints     Output redefinition     Barrier Lyapunov function    

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Performance Evaluation in Automatic Target Recognition Based on Lyapunov Stability Theory

Li Yanpeng,Li Xiang,Wang Hongqiang,Zhuang Zhaowen,Liang Diannong

Strategic Study of CAE 2005, Volume 7, Issue 7,   Pages 39-42

Abstract: Then, with the application of Lyapunov stability theory, the stability of performance in ATR system is

Keywords： automatic target recognition     performance evaluation     stability    

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The Control Strategy of SVG in Outer Loop Controller Based on Artificial Immunity Algorithm

Yang Jianning,Sun Yukun,Li Zicheng,Sun Yunyuan

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 30-35

Abstract:

The control strategy of SVG controller in outer loop based on artificial immunity arithmetic was brought forward in this paper in control technique about voltage error—reactive power in static var generator's controller in allusion to complex control object of multi-dimensional and non-linear power system.  Bionically simulating the immune process of human body in which the immunity system can bring excellent antibody for biting evil invasive antigen and maintain normal function, the control strategy takes voltage fluctuate as equivalence antigen and produces antibody for voltage stabilization. Output reference value of reactive power instruction in inner loop is gained by identifying voltage change factor in power system which corresponds to antigen mater in immunity system and setting model with fuzzy scheme for cell activation process with Mamdani fuzzy reasoning and gravitational and center fuzzy measure.  The control scheme of simulation immune mechanism brought forward in the paper is proved effective on stability of power system through the outline parameter training of the SVG simulation controller on on power system of one generator with two close loop structur the fault influence analysis about short circuit in triphase symmetry power system and comparison with parameter change by PI control manner.

Keywords： power system     SVG     mimic humoral immune response model (MHIRM)     Lyapunov energy function    

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Title Author Date Type Operation

Dynamic characteristics of an NC table with phase space reconstruction

Linhong WANG, Bo WU, Runsheng DU, Shuzi YANG

Journal Article

Parameter value selection strategy for complete coverage path planning based on the Lü system to perform specific types of missions

Caihong LI, Cong LIU, Yong SONG, Zhenying LIANG

Journal Article

Robust control based on the Lyapunov theory of a grid-connected doubly fed induction generator

Ridha CHEIKH, Arezki MENACER, Said DRID

Journal Article

Numerical Investigation of the Pressure Exponent in Gas Turbine Combustor Efficiency Similitude Study

Yang Rui,Wang Yingshi

Journal Article

Model reduction of contact dynamics simulation using a modified Lyapunov balancing method

Jianxun LIANG, Ou MA, Caishan LIU

Journal Article

Robust direct power control based on the Lyapunov theory of a grid-connected brushless doubly fed induction

M. Abdelbasset MAHBOUB,Said DRID,M. A. SID,Ridha CHEIKH

Journal Article

Robust nonlinear control via feedback linearization and Lyapunov theory for permanent magnet synchronous

Ridha CHEIKH, Arezki MENACER, L. CHRIFI-ALAOUI, Said DRID

Journal Article

Construction of a new Lyapunov function for a dissipative gyroscopic system using the residual energy

Cem CİVELEK, Özge CİHANBEĞENDİ

Journal Article

Guilin University of Electronic Technology ,Guilin,Guangxi 541004,China

Zhang Yuxian,Wang Hong

Journal Article

Smooth tracking control for conversionmode of a tilt-rotor aircraft with switching modeling

Kebi LUO, Shuang SHI, Cong PENG

Journal Article

Extrapolation reconstruction of wind pressure fields on the claddings of high-rise buildings

Yehua SUN, Guquan SONG, Hui LV

Journal Article

Improved R /S Method and Analysis and Forecast to China Fire Data

Fu Yuhua,Fu Anjie

Journal Article

Adaptive tracking control for air-breathing hypersonic vehicles with state constraints

Gong-jun LI

Journal Article

Performance Evaluation in Automatic Target Recognition Based on Lyapunov Stability Theory

Li Yanpeng,Li Xiang,Wang Hongqiang,Zhuang Zhaowen,Liang Diannong

Journal Article

The Control Strategy of SVG in Outer Loop Controller Based on Artificial Immunity Algorithm

Yang Jianning,Sun Yukun,Li Zicheng,Sun Yunyuan

Journal Article