Research on optimization of control parameters of gravity shaking
Traditional operation control of shaking table mainly relies on the operators to observe the ore belt of and then determine the operation state through the Among the three shaking tables available from the Tamaris platform, "Azalée" is a plate (6 x 6 m 2,25 tons) moved by 8 hydraulic actuators of 100ton force (PDF) CEA shaking table control strategy ResearchGate
An overview of control schemes for hydraulic shaking tables
Yang TY and Schellenberg A (2008) Using nonlinear control algorithms to improve the quality of shaking table tests In: Proceedings of the 14th World To improve the experimental accuracy and stability of shaking table substructure testing (STST), an explicit central difference method (CDM) and a threevariable control method Shaking Table Substructure Testing Based on ThreeVariable
An overview of control schemes for hydraulic shaking tables
Techniques to control the motion of shaking table systems fall into two main categories, namely, iterative or frequency domain methods and time domain In this work, a ModelBased Control method for a single horizontal degree of freedom shaking table is presented The proposed approach relies on the realtime Shaking table control via realtime inversion of hydraulic
Optimal Design and Hybrid Control for the ElectroHydraulic Dual
Abstract This paper is to develop an optimal electrohydraulic dualshaking table system with high waveform replication precision The parameters of hydraulic cylinders, servo In this study, we added two feedback controls to suppress the effects of the reaction force and nonlinear friction, respectively Then, we applied datadriven control to adjust Design of Disturbance Suppression Control for ShakingTable by
The control of the electrohydraulic shaking table based on
The electrohydraulic shaking table is investigated, in the present paper, to simulate the vibrational working environment of industrial components and equipment The MCS algorithm can tune the controller in real–time without any parametric knowledge of the system to be controlled This paper describes how MCS has Adaptive control of shaking tables using the minimal control
A novel system identification method for servohydraulic shaking table
1 Introduction As a crucial part of the controller design, the system identification of shaking table has always been the research focus Different from the general hydraulic equipment, the shaking table possesses the characteristics of wide frequency range vibration, such as 0–50 Hz, large force output and obvious control Quality control is more an action than a slogan Strict quality control is implemented in all aspects of our operations to meet the high standards of toptier customers This philosophy has permeated all levels of the production processes, covering: 1) Incoming material inspections 2) Inspections of workinprogressOur Strict Quality Control chevacase
CHAPTER 1 INTRODUCTION TO SHAKING TABLES 10 Project
shaking table Shaking table is related to earthquake since much of its parameter is custom designed to the earthquake’s parameter such as acceleration, displacement, frequency and stroke However hydraulically driven shaking table have more advantages from other method of actuation Table 11 lists some of the advantages of using hydraulicFrom the aspects of shaking table characteristics, many scholars have analyzed the effects of control parameters, the time delay and the bias of servo valve, the stiffness of hinge, the mass ofSensitivity of analytical total shaking table transfer function to
Shaking table investigations on seismic performance of
A series of shaking table model tests were performed to investigate dynamic responses and damage mechanisms of prefabricated corrugated steel utility tunnels holding various brackets and pipelinesIt is difficult to accurately establish a model of the real mesa system Furthermore, a model of a seismic simulation vibration table array system is critical to increasing the accuracy of seismic testing in laboratory settings Herein a model of the nine subarray shaking table system is identified by recursive extension of the least square Research on parameter identification of shaking table systems
Investigation on the performance of the six DOF CGS, Algeria
shaking table systems and acceleration tracking performance of servohydraulic shaking tables (Rinawi and Clough 1991, Clark 1992, Matthew 1997, Williams et al 2001, Shortreed et al 2001, Crewe and Severn 2001, Trombetti and Conte 2002, Twitchell et al 2003, Thoen and Laplace 2004, Ozcelik et al 2008a, 2008b, Plummer 2010, Shen et alShaking tables are rectangularshaped tables with ribbed decks with a water film flowing on them Water flowing along the long axis of the table slurries the fed sample Lowdensity particles are transported in the fastmoving film, causing fine, highdensity particles to fall into the beds behind rifles With the rapid backward movement of What is the Shaking Table? RecyclingInside
The control of the electrohydraulic shaking table based on
The electrohydraulic shaking table is investigated, Modeling and controller design of a shaking table in an active structural control system Mechanical Systems and Signal Processing 22(8): Tomizuka, M (1997) Adaptive robust control of SISO nonlinear systems in a semistrict feedback formThe purpose of this control scheme is to develop an intelligent controller that learns, in long term, to select an appropriate action directly from the environment which is a shaking table system(PDF) EARTHQUAKE GROUND MOTION MATCHING
Shaking Table Model Test and Seismic Performance
A building developed by Wuhan Shimao Group in Wuhan, China, is a highrise residence with 56 stories near the Yangtze River The building is a reinforced concrete structure, featuring with a nonregular T Request PDF Shaking Table Tests Examining Seismic Response of Suspended Ceilings Attached to LargeSpan Spatial Structures The failure of suspended ceiling systems is one of the most widelyShaking Table Tests Examining Seismic Response of
Shaking Table Testing for Structural Analysis
II1 Shaking Table and Control System At the Laboratory of Materials and Structural Testing of the University of Naples “Federico II” some testing are developed on a unidirectional shaking table moving in the horizontal direction The shaking table is an MTS system and is it automatically connected to a system which both gives the inputin 1936 (Ruge, 1936) Servovalve control was applied to shaking tables in the mid1960s Since then, shakingtable tests have been widely used and more shaking tables were built (Blostotsky et al, 2010; Tsai et al, 2010) In the mid1970s, a 5 m × 5 m six DOF shaking table was built in the Federal Republic of Germany (Severn, 2011)Development of a doublelayer shaking table for large
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was demonstrated for a 3axis shaking table in simulation in [4] Experimental research into multiaxis control of vibration tables is fairly sparse, although a number of uniaxial studies have been performed (eg [5,6]) An overview of shaking table control schemes is presented in [7]To the control issue of shake table experiments, minimal control synthesis (MCS) [22,23], which is a type of model reference adaptive control [24], was intensively studied and applied in variousAdaptive vibration control on electrohydraulic shaking table
Development of the Shaking Table and Array System Technology in China
Shaking table is important experimental equipment to carry out antiseismic research Research, conclusion, comparison, and analysis concerning the developmental history, constructional situation, performance index, control algorithm, and experimental technique of the internal shaking table were reviewed and compared The Influence on the Control Performance Caused by Load Characteristic in the Shaking Table doi: 103969/jissn10030972202201025 GAO Chunhua,, WANG Jieqiong,ZHANG Yonghe,YUAN Xiaobo College of Architecture and Civil Engineering, Xinyang Normal University, Xinyang , China Received Date: Rev The Influence on the Control Performance Caused by Load