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Iterative finite element model of nonlinear viscoplastic analyses for blended granular porous media

WU Yuching, ZHU Cimian

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4, Pages 464-473 doi: 10.1007/s11709-007-0063-6

Abstract: The iterative finite element model, in which an element is used to represent a single particle, is generatedto analyze the global behavior of multiple-material aggregates of materially nonlinear viscoplastic

Keywords： nonlinear viscoplastic iterative behavior multiple-material

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The study of hybrid model identification, computation analysis and fault location for nonlinear dynamic

XIE Hong, HE Yi-gang, ZENG Guan-da

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2, Pages 233-237 doi: 10.1007/s11465-006-0003-5

Abstract: This paper presents the hybrid model identification for a class of nonlinear circuits and systems viaAfter discussing the method to establish the hybrid model and introducing the hybrid model identification, a set of relative formulas are derived for calculating the hybrid model and computing the Volterraseries solution of nonlinear dynamic circuits and systems.Results show that the method has high accuracy and efficiency for fault location of nonlinear dynamic

Keywords： block-pulse function nonlinear multiple diagnosis combination

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Mean wind load induced incompatibility in nonlinear aeroelastic simulations of bridge spans

Zhitian ZHANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3, Pages 605-617 doi: 10.1007/s11709-018-0499-x

Abstract: It is shown that, in cases of low wind speeds, the IF-denoted model reflects correctly the mean windload properties, and results in correct mean structural responses; in contrast, the RF-denoted modelAt very high wind speeds, however, even the IF-denoted model can lead to significant deviation from theincompatibility at high wind speeds, a methodology of subtraction of pseudo-steady effects from the aeroelastic model

Keywords： bridge aerodynamics nonlinear aeroelastic model Pseudo-steady mean wind loads

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General expression for linear and nonlinear time series models

Ren HUANG, Feiyun XU, Ruwen CHEN

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1, Pages 15-24 doi: 10.1007/s11465-009-0015-z

Abstract: However, some nonlinear factors are within the practical system; thus, it is difficult to fit the modelThis paper proposes a general expression for linear and nonlinear auto-regressive time series modelsThe model simulation and experiments show that the GNAR model can accurately approximate to the dynamiccharacteristics of the most nonlinear models applied in academics and engineering.The proposed GNAR model is flexible and effective.

Keywords： linear and nonlinear autoregressive model system identification time series analysis

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Vibration suppression of speed-controlled robots with nonlinear control

Paolo BOSCARIOL,Alessandro GASPARETTO

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2, Pages 204-212 doi: 10.1007/s11465-016-0380-3

Abstract:

In this paper, a simple nonlinear control strategy for the simultaneous position tracking and vibration

Keywords： industrial robot nonlinear control vibration damping model-free control motion control

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Method for solving the nonlinear inverse problem in gas face seal diagnosis based on surrogate models

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0689-z

Abstract: inferring the input fault parameters for the observed output or solving the inverse problem of the physical modelThe presented work develops a surrogate-model-assisted method for solving the nonlinear inverse problemin limited physical model evaluations.routine that benefits from the rapidity of the surrogate models and the reliability of the physical modelcan effectively identify the parameters that induce the abnormal signal output with limited physical model

Keywords： surrogate model gas face seal fault diagnosis nonlinear dynamics tribology

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Geometrical nonlinear deformation model and its experimental study on bimorph giant magnetostrictive

LIU Wei, JIA Zhenyuan, WANG Fuji, ZHANG Yongshun, GUO Dongming

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3, Pages 313-317 doi: 10.1007/s11465-008-0048-8

Abstract: According to nonlinear elastic theory, a nonlinear deformation model of the bimorph GMF is establishedExperiments on TbDyFe/Polyimide (PI)/SmFe and TbDyFe/Cu/SmFe are then conducted to verify the proposed modelResults indicate that the nonlinear deflection curve model is in good conformity with the experimental

Keywords： magnetostrictive nonlinear magnetostriction inaccurate geometrical nonlinearity

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machine-learning-based system identification of dynamical systems under control: application towards the modelpredictive control of a highly nonlinear reactor system

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2, Pages 237-250 doi: 10.1007/s11705-021-2058-6

Abstract: Advanced model-based control strategies, e.g., model predictive control, can offer superior control ofThis work articulates an integrated system identification procedure for deriving black-box nonlinearcontinuous-time multiple-input multiple-output system models for nonlinear model predictive control.model predictive controller for a highly nonlinear continuous stirred tank reactor system.This demonstration of how such system models could be identified for nonlinear model predictive control

Keywords： nonlinear model predictive control black-box modeling continuous-time system identification machine

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Model-based nonlinear control of hydraulic servo systems: Challenges, developments and perspectives

Jianyong YAO

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2, Pages 179-210 doi: 10.1007/s11465-018-0464-3

Abstract: Essential nonlinearity is a unique feature and makes model-based nonlinear control more attractive, dueIn this paper, a discussion for challenges in model-based nonlinear control, latest developments andlow velocity tracking, severe disturbance, periodic disturbance, etc.; to handle various challenges, nonlinearsolutions including parameter adaptation, nonlinear robust control, state and disturbance observationresearch topics (measurement noise, constraints, inner valve dynamics, input nonlinearity, etc.) in nonlinear

Keywords： hydraulic servo system adaptive control robust control nonlinear friction disturbance compensation repetitive

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PRESS-based EFOR algorithm for the dynamic parametrical modeling of nonlinear MDOF systems

Haopeng LIU, Yunpeng ZHU, Zhong LUO, Qingkai HAN

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3, Pages 390-400 doi: 10.1007/s11465-017-0459-5

Abstract:

In response to the identification problem concerning multi-degree of freedom (MDOF) nonlinear systemsforward orthogonal regression (EFOR) based on predicted residual sums of squares (PRESS) to construct a nonlineardynamic parametrical model.Moreover, a 5-DOF nonlinear system is taken as a case to illustrate the modeling of the proposed algorithmResults indicate that the dynamic parametrical model of nonlinear systems, which depends on the PRESS-based

Keywords： MDOF dynamic parametrical model NARX model PRESS-based EFOR cantilever beam

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Nonlinear cumulative damage model for multiaxial fatigue

SHANG De-guang, SUN Guo-qin, DENG Jing, YAN Chu-liang

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3, Pages 265-269 doi: 10.1007/s11465-006-0035-x

Abstract: On the basis of the continuum fatigue damage theory, a nonlinear uniaxial fatigue cumulative damage modelIn order to describe multiaxial fatigue damage characteristics, a nonlinear multiaxial fatigue cumulativedamage model is developed based on the critical plane approach.The recurrence formula of fatigue damage model was derived under multilevel loading, which is used toThe results showed that the proposed nonlinear multiaxial fatigue cumulative damage model is better than

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reference tracking control design for a class of nonlinear systems with time-varying delays

Mei-qin LIU,Hai-yang CHEN,Sen-lin ZHANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9, Pages 759-768 doi: 10.1631/FITEE.1500053

Abstract: This paper investigates the trajectory tracking control for a class of nonlinear systems with timevaryingA unified model consisting of a linear delayed dynamic system and a bounded static nonlinear operatoris introduced, which covers most of the nonlinear systems with bounded nonlinear terms, such as themodel, and state feedback controller is presented.The reference model adopted here is modified to be more flexible.

Keywords： H∞ reference tracking Nonlinear system State feedback control Time-varying delays Unified model

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Nonlinear finite element analysis of short-limbed wall

Zhi ZHANG, Qian GU, Shaomin PENG, Quanzhi CAI

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2, Pages 125-130 doi: 10.1007/s11709-009-0025-2

Abstract: Combined with the actual project, this paper carries out a nonlinear finite element analysis on 2 groups

Keywords： short-limbed wall (SLW) nonlinear finite element separate model axial compression ratios

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Nonlinear elastic model for compacted clay concrete interface

R. R. SHAKIR, Jungao ZHU

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2, Pages 187-194 doi: 10.1007/s11709-009-0033-2

Abstract: In this paper, a nonlinear elastic model was developed to simulate the behavior of compacted clay concreteThe mathematical relations were then incorporated into the interface model.The performance of the model is verified with the experimental results.The verification shows that the proposed model is capable of predicting the interface shear stress versus

Keywords： interface modeling friction soil structure interface soil structure interaction simple shear test

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Analyzing the nonlinear vibrational wave differential equation for the simplified model of Tower Cranes

M.R. AKBARI,D.D. GANJI,A.R. AHMADI,Sayyid H. Hashemi KACHAPI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1, Pages 58-70 doi: 10.1007/s11465-014-0289-7

Abstract:

In the current paper, a simplified model of Tower Cranes has been presented in order to investigateand analyze the nonlinear differential equation governing on the presented system in three differentresults have been indicated that this approach is very efficient and easy so it can be applied for other nonlinearof study such as fluid mechanics, chemical engineering, etc. make AGM be a powerful and useful role modelfor researchers in order to solve complicated nonlinear differential equations.

Keywords： Algebraic Method (AGM) tower crane oscillating system angular frequency

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Title Author Date Type Operation

Iterative finite element model of nonlinear viscoplastic analyses for blended granular porous media

WU Yuching, ZHU Cimian

Journal Article

The study of hybrid model identification, computation analysis and fault location for nonlinear dynamic

XIE Hong, HE Yi-gang, ZENG Guan-da

Journal Article

Mean wind load induced incompatibility in nonlinear aeroelastic simulations of bridge spans

Zhitian ZHANG

Journal Article

General expression for linear and nonlinear time series models

Ren HUANG, Feiyun XU, Ruwen CHEN

Journal Article

Vibration suppression of speed-controlled robots with nonlinear control

Paolo BOSCARIOL,Alessandro GASPARETTO

Journal Article

Method for solving the nonlinear inverse problem in gas face seal diagnosis based on surrogate models

Journal Article

Geometrical nonlinear deformation model and its experimental study on bimorph giant magnetostrictive

LIU Wei, JIA Zhenyuan, WANG Fuji, ZHANG Yongshun, GUO Dongming

Journal Article

machine-learning-based system identification of dynamical systems under control: application towards the modelpredictive control of a highly nonlinear reactor system

Journal Article

Model-based nonlinear control of hydraulic servo systems: Challenges, developments and perspectives

Jianyong YAO

Journal Article

PRESS-based EFOR algorithm for the dynamic parametrical modeling of nonlinear MDOF systems

Haopeng LIU, Yunpeng ZHU, Zhong LUO, Qingkai HAN

Journal Article

Nonlinear cumulative damage model for multiaxial fatigue

SHANG De-guang, SUN Guo-qin, DENG Jing, YAN Chu-liang

Journal Article

reference tracking control design for a class of nonlinear systems with time-varying delays

Mei-qin LIU,Hai-yang CHEN,Sen-lin ZHANG