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Advances in Manufacturing 2024年第1期12卷 33-60页

作者： Bo Wang Zhong Jiang Pei-Da Hu Department of Precision Instrument Tsinghua UniversityBeijing100084People’s Republic of China Institute of Machinery Manufacturing Technology China Academy of Engineering PhysicsMianyang621900SichuanPeople’s Republic of China

The vibration disturbance from an external environment affects the machining accuracy of ultra-precision machining *** active vibration-isolation systems(AVIS)have been developed based on static *** a vibration-isolation load changes dynamically during ultra-precision turning lathe machining,the system parameters change,and the efficiency of the active vibration-isolation system based on the traditional control strategy *** solve this problem,this paper proposes a vibration-isolation control strategy based on a genetic algorithm-back propagation neural network-PID control(GA-BP-PID),which can automatically adjust the control parameters according to the machining ***-isolation simulations and experiments based on passive vibration isolation,a PID algorithm,and the GA-BP-PID algorithm under dynamic load machining conditions were *** experimental results demonstrated that the active vibration-isolation control strategy designed in this study could effectively attenuate vibration disturbances in the external environment under dynamic load *** design is reasonable and feasible.

关键词： Ultra-precision diamond turning lathe active vibration isolation Six degrees of freedom Dynamic load Genetic algorithm-back propagation neural network-PID(GA-BP-PID)control

active vibration isolation System for Sub microultra precision Turning Machine

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High Technology Letters 2000年第3期6卷 40-43页

作者：盖玉先 Harbin Inst of Technology Harbin China

Now vibration isolation of ultra precision machine tool is usually achieved through air springs systems. As far as HCM I sub micro turning machine developed by HIT, an active vibration isolation system that consists of air springs and electro magnetic actuators was presented. The primary function of air springs is to support the turning machine and to isolate the high frequency vibration. The electro magnetic actuators controlled by fuzzy neural networks isolate the low frequency vibration. The experiment indicates that active vibration isolation system isolates base vibration effectively in all the frequency range. So the vibration of the machine bed is controlled under 10 -6 g and the surface roughness is improved.

关键词： Ultra precision turning machine active vibration isolation Fuzzy neural network

active vibration isolation of Micro-Manufacturing Platform Based on Neural Network

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厦门大学学报（自然科学版） 2002年第S1期41卷 67-68页

作者： ZHANG Chun-liang, MEI De-qing, CHEN Zi-chen (Institute of Production Engineering, Zhejiang University, Hangzhou 310027, China)

The micromation and precision of the Micro-Electromechanical System demand that its manufacturing, measuring and assembling must work in a micro-manufacturing platform with good ability to isolate vibrations. This paper develops a vibration isolation system of micro-manufacturing platform. The brains of many kinds of birds can isolate vibrations well, such as woodpecker’s brain. When a woodpecker pecks the wood at the speed as 1.6 times as the velocity of sound, its brain will tolerate the wallop 1 500 times of the weight of itself without any damage. The isolation mechanics and organic texture of woodpecker’s brain that has good isolation characteristics were studied. A structure model of vibration isolation system for the micro-manufacturing platform is established based on the bionics of the bird’s brain vibration isolation mechanism. In order to isolate effectively the high frequency vibrations from the ground, a rubber layer is used to isolate vibrations passively between the micro-manufacturing platform’s pedestal and the ground. This layer corresponds to the cartilage and muscles in the outer meninges of the bird’s brain. The active vibration isolation technique is adopted to isolate vibrations between the micro-manufacturing platform and the pedestal. Air springs are used as elastic components, which correspond to the interspaces between the outer meninges and the encephala of the bird’s brain. Actuators are made of giant magnetostrictive material, and it corresponds to the nerves and neural muscles linking the meninges and the encephala. The actuators and air springs are arranged vertically in parallel to make use of the giant magnetostrictive actuators effectively. The air springs support almost all weight of the micro-manufacturing platform and the giant magnetostrictive actuators support almost no weight. In order to realize high performance to isolate complex micro-vibration, the control method using a three-layer neural network is presented. This vibra

关键词： micro-manufacturing platform active vibration isolation bionic mechanics neural network

active vibration isolation Using 6-RSS Parallel Mechanism and Model Predictive Control

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Active Vibration Isolation Using 6-RSS Parallel Mechanism an...

2005国际机械工程与力学会议

作者： Kunquan LI Yuefa FANG School of Mechanical and Electronic Control Engineering Beijing Jiaotong University

his paper studies the design and control problems of a class of multiple DOF vibration isolation systems. The dynamics model of 6-RSS parallel mechanism is deduced. Model Predictive Control （MPC） algorithms for active vibration isolation control are formulated. MPC design explicitly incorporates all hard constraints on state, control and output variables. The paper’s work establishes the basis for application of the 6-RSS parallel mechanism on active vibration isolation control.

关键词： active vibration isolation Dynamics Model 6-RSS parallel mechanism Model Predictive Control

active vibration isolation for Stewart Platforms Using Adaptive Backstepping Sliding Mode Control

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Active Vibration Isolation for Stewart Platforms Using Adapt...

第37届中国控制会议

作者： Kang Liang Dan-Ping Lu Ai-Guo Wu Rui-Qi Dong Harbin Institute of Technology Shanghai Space Intelligent Control Laboratory Shanghai Aerospace Control Technology Institute

To solve the active vibration isolation problem for Stewart platforms,an adaptive backstepping sliding mode controller is designed in this ***,the dynamic model is constructed for the Stewart ***,the dynamics is decoupled by using a simultaneous diagonization,and an adaptive backstepping sliding mode controller is designed such that the closed-loop system is stable and the system error can converge to ***,the effectiveness of the proposed method is verified by a simulation example.

关键词： active vibration isolation Adaptive backstepping sliding mode Stewart platform

A NOVEL ADAPTIVE CONTROL ALGORITHM FOR active vibration isolation

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A NOVEL ADAPTIVE CONTROL ALGORITHM FOR ACTIVE VIBRATION ISOL...

The Third International Conference on Dynamics, vibration and Control

作者： L.Zhang Y.Wang S.H.Shi Naval Academy of Armament Beijing 100161 P.R.China

＜正＞Although the Filtered-X algorithm based on linear adaptive filters has achieved great success in active vibration isolation system,its slow convergence rate based on the theory of gradient descent had a negative effect on the performance,Some new algorithms,e.g.,adaptive feedback control algorithm and neural network control algorithm,were put forward in spite of much more computing work ***,the performance of active vibration isolation depended highly on the accuracy of the secondary path model.

关键词： active vibration isolation Lyapunov stability the secondary path model

STUDY ON active vibration isolation SYSTEM FOR THE BED OF ULTRA-PRECISION TURNING MACHINE

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STUDY ON ACTIVE VIBRATION ISOLATION SYSTEM FOR THE BED OF UL...

2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： GAI Yuxian, LIU Huiying, GUO Qingti, DONG Shen Harbin Institute of Technology, Weihai 264209, China

The aim of this thesis about active isolation vibration system for the bed of ultra-precision turning machine is to introduce the active vibration isolation to the ultra-precision isolation system, an

关键词： Bed of ultra-precision turning machine active vibration isolation fuzzy control.

STUDY ON active vibration isolation SYSTEM FOR THE BED OF ULTRA-PRECISION TURNING MACHINE

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STUDY ON ACTIVE VIBRATION ISOLATION SYSTEM FOR THE BED OF UL...

International Technology and Innovation Conference 2006

作者： GAI Yuxian LIU Huiying GUO Qingti DONG Shen Harbin Institute of Technology Weihai 264209 China

＜正＞The aim of this thesis about active isolation vibration system for the bed of ultra-precision turning machine is to introduce the active vibration isolation to the ultra-precision isolation system, and to improve the ability of the vibration isolation for the ultra-precision machine. Firstly, mathematical model was established for the hybrid vibration isolation system, in which air-spring was used as passive vibration isolation element and electro-magnetic actuator as active vibration isolation element. Secondly, two-dimension fuzzy controller has been designed in which machine vibration velocity was used as system error while machine vibration acceleration as the change of system error. At last, the synthetic experiment has been done for the active vibration isolation system of the ultra-precision turning machine. The result of the single actuator experiment which has been done in X, Y, Z directions indicates the vibration acceleration not only in actuator acting direction but also in other two directions are to be controlled in the same order.

关键词： Bed of ultra-precision turning machine active vibration isolation fuzzy control.

Development of a Stabilized Pan/Tilt Platform and the State of the Art

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Journal of Mechanics Engineering and Automation 2013年第10期3卷 618-626页

作者： Mehmet Burcak Ozkok Ali Osman Boyacl Meteksan Defense Ind. Inc. Cyberpark Bilkent Ankara 06800 Turkey

In the context of this paper, a small scale, medium precision, stabilized pan/tilt platform is developed as a prototype, which is used to compare various stabilization algorithms experimentally. The overall performance of the system depends on rigid body dynamics, structural dynamics, servo control loops, stabilization control algorithm, sensor fusion algorithm and sensory feedback such as from the IMU （inertial measurement unit）. In the case that the response bandwidth of the overall system is high enough, the same hardware can also achieve active vibration isolation. All of these design aspects are investigated in the paper via numerical models and with their experimental verification.

关键词： Stabilized pan/tilt platform active vibration isolation stabilization control sensor fusion inertial measurement unit

A New Parameterization of All Stabilizing Controllers in a SISO Setup

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A New Parameterization of All Stabilizing Controllers in a S...

第二十九届中国控制会议

作者： WANG Jiqiang 1,MIN Nanyan 2,ZHANG Tianhong 3,MA Lei 4 1,3 College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,P.R.China2 Jincheng College,Nanjing University of Aeronautics and Astronautics,99 Hangjin Dadao,Nanjing 211156,P.R.China 4 Henan Electric Power Research Institute,85 Songshan South Road,Zhengzhou 450052,P.R.China

Youla-Parameterization has been widely utilized in control system analysis and control system *** this approach,all stabilizing controllers are parameterized by a stable transfer ***,there also exists a different parameterization approach and when applied to scalar feedback active control systems,it possesses remarkable properties:it not only parameterizes all stabilizing controllers,but also parameterizes performance variables that allow a geometric *** note aims to discuss the properties of this novel approach and its design as well as limit of performance *** resulting design methodology is also illustrated by its application to a three-degree-of-freedom active vibration isolation system.

关键词： All stabilizing controllers active vibration isolation harmonic control limit of performance