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General expression for linear and nonlinear time series models
Ren HUANG, Feiyun XU, Ruwen CHEN
《机械工程前沿(英文)》 2009年 第4卷 第1期 页码 15-24 doi: 10.1007/s11465-009-0015-z
关键词: linear and nonlinear autoregressive model system identification time series analysis
Houxin SHE, Chaofeng LI, Qiansheng TANG, Hui MA, Bangchun WEN
《机械工程前沿(英文)》 2020年 第15卷 第1期 页码 133-150 doi: 10.1007/s11465-019-0557-7
关键词: coupling vibration nonlinear mode original algorithm contact interface
《化学科学与工程前沿(英文)》 2022年 第16卷 第2期 页码 237-250 doi: 10.1007/s11705-021-2058-6
关键词: nonlinear model predictive control black-box modeling continuous-time system identification machine learning industrial applications of process control
Model-based nonlinear control of hydraulic servo systems: Challenges, developments and perspectives
Jianyong YAO
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 179-210 doi: 10.1007/s11465-018-0464-3
Hydraulic servo system plays a significant role in industries, and usually acts as a core point in control and power transmission. Although linear theory-based control methods have been well established, advanced controller design methods for hydraulic servo system to achieve high performance is still an unending pursuit along with the development of modern industry. Essential nonlinearity is a unique feature and makes model-based nonlinear control more attractive, due to benefit from prior knowledge of the servo valve controlled hydraulic system. In this paper, a discussion for challenges in model-based nonlinear control, latest developments and brief perspectives of hydraulic servo systems are presented: Modelling uncertainty in hydraulic system is a major challenge, which includes parametric uncertainty and time-varying disturbance; some specific requirements also arise ad hoc difficulties such as nonlinear friction during low velocity tracking, severe disturbance, periodic disturbance, etc.; to handle various challenges, nonlinear solutions including parameter adaptation, nonlinear robust control, state and disturbance observation, backstepping design and so on, are proposed and integrated, theoretical analysis and lots of applications reveal their powerful capability to solve pertinent problems; and at the end, some perspectives and associated research topics (measurement noise, constraints, inner valve dynamics, input nonlinearity, etc.) in nonlinear hydraulic servo control are briefly explored and discussed.
关键词: hydraulic servo system adaptive control robust control nonlinear friction disturbance compensation repetitive control noise alleviation constraint control
LU Yanjun, LIU Heng, YU Lie, LI Qi, JIANG Ming, ZHANG Zhiyu
《机械工程前沿(英文)》 2007年 第2卷 第1期 页码 37-45 doi: 10.1007/s11465-007-0006-x
关键词: computational corrector mechanism predictor corrector multisolution quasiperiodic
一类非仿射离散非线性系统的直接自适应模糊滑模控制 Article
Xiao-yu ZHANG
《信息与电子工程前沿(英文)》 2016年 第17卷 第12期 页码 1331-1343 doi: 10.1631/FITEE.1500318
reference tracking control design for a class of nonlinear systems with time-varying delays
Mei-qin LIU,Hai-yang CHEN,Sen-lin ZHANG
《信息与电子工程前沿(英文)》 2015年 第16卷 第9期 页码 759-768 doi: 10.1631/FITEE.1500053
关键词: H∞ reference tracking Nonlinear system State feedback control Time-varying delays Unified model
涂承媛,曾衍钧
《中国工程科学》 2001年 第3卷 第10期 页码 48-52
文章提出了一种基于知识的变结构解耦控制策略,并用于多变量非线性系统的控制,避免了传统解耦控制所必须的建模过程,特别是避免了相应的大量复杂的矩阵运算。阐述了其控制知识库中的一些模块,给出了其算法要点。提出的策略成功地用于一个3×3强耦合系统一三绕组加热标准温度源的恒温控制,得到了温 度稳定性和温度均匀性都优于1℃的效果,这是传统方法用于该系统所无法实现的。
关键词: 多变量非线性系统 解耦控制 基于知识的变结构解耦
马景兰,王伟,万京生,张永丽
《中国工程科学》 2009年 第11卷 第8期 页码 93-96
低频振荡是影响电力系统稳定运行的一个重要方面。阐述了低频振荡产生的机理和分析方法,利用Hopf分歧理论,针对一个四阶模型的单机无穷大系统,分析了在临界点附近时可能出现的非线性奇异现象。研究表明:由于分歧的存在,导致系统稳定性在临界点附近出现奇异,从而影响了电力系统的稳定域。
Pengfei LI; Jinquan ZHANG; Shengqi MEI; Zhenhua DONG; Yan MAO
《结构与土木工程前沿(英文)》 2022年 第16卷 第2期 页码 239-249 doi: 10.1007/s11709-021-0804-y
关键词: vehicle-bridge vibration system dynamic analysis stress-dependent damping energy dissipation
Siu-Lai CHAN, Yaopeng LIU, Andy LEE,
《结构与土木工程前沿(英文)》 2010年 第4卷 第3期 页码 376-382 doi: 10.1007/s11709-010-0086-2
关键词: tension system glass wall nonlinear analysis pre-tensioning second-order analysis
涂承媛,曾衍钧
《中国工程科学》 2003年 第5卷 第8期 页码 45-49
简要介绍了非线性科学中的分形维方法和信息熵方法及其用于房颤信息的处理和分析,计算了未房颤时P波的及房颤时f波的格子维和信息熵,特别是,比较了未房颤时和发生房颤时的相关计算结果的显著差别,从而很容易判断是否发生了房颤。
New nonlinear stiffness actuator with predefined torque‒deflection profile
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0721-3
关键词: compliant actuator nonlinear stiffness actuator nonlinear spring predefined torque−deflection profile
M.R. AKBARI,D.D. GANJI,A.R. AHMADI,Sayyid H. Hashemi KACHAPI
《机械工程前沿(英文)》 2014年 第9卷 第1期 页码 58-70 doi: 10.1007/s11465-014-0289-7
In the current paper, a simplified model of Tower Cranes has been presented in order to investigate and analyze the nonlinear differential equation governing on the presented system in three different cases by Algebraic Method (AGM). Comparisons have been made between AGM and Numerical Solution, and these results have been indicated that this approach is very efficient and easy so it can be applied for other nonlinear equations. It is citable that there are some valuable advantages in this way of solving differential equations and also the answer of various sets of complicated differential equations can be achieved in this manner which in the other methods, so far, they have not had acceptable solutions. The simplification of the solution procedure in Algebraic Method and its application for solving a wide variety of differential equations not only in Vibrations but also in different fields of study such as fluid mechanics, chemical engineering, etc. make AGM be a powerful and useful role model for researchers in order to solve complicated nonlinear differential equations.
关键词: Algebraic Method (AGM) tower crane oscillating system angular frequency
Mean wind load induced incompatibility in nonlinear aeroelastic simulations of bridge spans
Zhitian ZHANG
《结构与土木工程前沿(英文)》 2019年 第13卷 第3期 页码 605-617 doi: 10.1007/s11709-018-0499-x
关键词: bridge aerodynamics nonlinear aeroelastic model Pseudo-steady mean wind loads
标题 作者 时间 类型 操作
General expression for linear and nonlinear time series models
Ren HUANG, Feiyun XU, Ruwen CHEN
期刊论文
Computation and investigation of mode characteristics in nonlinear system with tuned/mistuned contact
Houxin SHE, Chaofeng LI, Qiansheng TANG, Hui MA, Bangchun WEN
期刊论文
An integrated approach for machine-learning-based system identification of dynamical systems under control: application towards the model predictive control of a highly nonlinear reactor system
期刊论文
Model-based nonlinear control of hydraulic servo systems: Challenges, developments and perspectives
Jianyong YAO
期刊论文
Analysis of stability and nonlinear response of rotor system with elliptical sliding bearing supports
LU Yanjun, LIU Heng, YU Lie, LI Qi, JIANG Ming, ZHANG Zhiyu
期刊论文
reference tracking control design for a class of nonlinear systems with time-varying delays
Mei-qin LIU,Hai-yang CHEN,Sen-lin ZHANG
期刊论文
Numerical analysis of vehicle-bridge coupling vibration concerning nonlinear stress-dependent damping
Pengfei LI; Jinquan ZHANG; Shengqi MEI; Zhenhua DONG; Yan MAO
期刊论文
Nonlinear analysis of pre-tensioned glass wall facade by stability function with initial imperfection
Siu-Lai CHAN, Yaopeng LIU, Andy LEE,
期刊论文
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
期刊论文