| Title |
Author |
Abstract |
| Multi-domain
Integrated Product Modeling and Simulation Technology of
Mechatronic System |
MIN
Chun-ping, DOU Wen-hua |
Complex mechatronic systems such as airplane, car, machining
center and robot, are increasingly taken the approach of
network-based designing and manufacturing on the Internet. The
research on mechatronic systems’ integrated product modeling
is now an international hotspot of CAD domain. According to the
similarities among engineering subsystems including mechanical,
electronic, hydraulic, etc., a component–based abstract
mechatronic systems’ architecture is put forward, the
port-based multi- energy-domain-integrated component model is
given as well as its formalizing description, which consists of
function, behavior, form, interface and constraints. Based on
the component model, a multi-energy-domain-integrated modeling
and simulation framework for mechatronic product is constructed,
which can support the evolving process of distributed,
collaborative, component-based and simulation-based design of
mechatronic systems very well. Finally, a simple example is
introduced to illustrate the main ideas. |
| Research
on STEP Product Model in Virtual Prototyping Development |
ZHOU
Hong-wei,
WANG Wei-ping,
WANG
Hao |
This paper introduces a method that uses STEP product data model
to support exchange and share of product information between
applications in virtual prototyping development. The process
from the creation of product data model to the data exchange
between applications is explained. A solution to model
manipulation and object retrieve is given in an application
using AP203. |
| Research
on the Physical Model of Multiple Variable Refrigerant Volume
Air-conditioning System |
SHAO
Shuang-quan, SHI Wen-xing,
LI
Xian-ting & YAN Qi-sen |
Based on the theory of system and similarity, the structure,
physical model, performance of operation and adjustment and so
on about single variable refrigerant volume refrigeration system
(SVRV) and multiple variable refrigerant volume refrigeration
system (MVRV) are studied and compared. The analysis and
comparison show that SVRV is the abstraction and simplification
of MVRV while MVRV is the expansion and extension of SVRV. SVRV
and MVRV systems can be uniformed with gas liquid two-phase
fluid network, which will be helpful for developing MVRV
systems, including optimal design, selection of types and
performance measurement on VRV systems. |
| Modeling
and Simulation of Hydraulic System of Water Gate Using the
Distributed Physical Net Modeling Approach |
ZHAO
Jian-gang, LI Zhao-hui |
Based on the analysis of the physical structure and the
operating principle of the hydraulic system of water gate, a
model of this hydraulic system is built using the distributed
physical net modeling approach. The tests of simulation were
carried out on the platform of Matlab with Simulink. The
simulation results show that this method is a good way to
simulate the hydraulic system. |
| Study
on the Model of Intercepting Decision for Multi Channel Surface
to Air Missile Weapon System |
ZHOU
Lin,ZHANG
Wen,
LOU
Shou-chun,ZHAO
Jie |
Multi channel surface to air missile weapon system has the
ability to lead multi missiles to catch multi objects. Air
missile weapon system has been the main means for our national
air defense. The accuracy and rationality of intercepting
decision have a great effect on the result of air defense. Based
on the 0-1 integer programming, the optimizing decision model is
proposed in this paper. It can guarantee the rationality and
utility of intercepting decision. |
| Multipath
Time Delay Estimation Based on Adaptive Parameters Approach
Using Fourth-Order Cumulants |
LIU
Ying, WANG Shu-xun, WANG Ben-ping |
Taking into account the multi-channels disturbance and spatially
correlated Gaussian, multipath time delay estimation based on
adaptive parametric approach using fourth-order cumulants is
proposed in this paper. Multi-path time delays are estimated
precisely with this approach, and spatially correlated Gaussian
noises can be suppressed effectively. The simulation examples
are presented to demonstrate the effectiveness of this novel
approach. This multipath time delay estimation approach based on
adaptive parameters approach can be used to location targets in
sonar and radar system. |
| Asymptotic
Stability Properties of Radau IIA Methods for the Pantograph
Delay Equation |
LI
Dong-song, LIU Ming-zhu |
This paper deals with the asymptotic stability analysis of Radau
IIA methods for the pantograph delay equation. In recent years
stability properties of numerical methods for this kind of
equation have been studied by numerous authors who have
considered meshes with fixed mesh. In general the developed
techniques give rise to a non-ordinary recurrence relation. In
this paper we study constrained variable stepsize schemes,
suggested by theoretical and computational reasons, which lead
to a non- stationary difference equation. We prove that Radau
IIA methods are H-stable. |
| Genetic
Algorithms and its Application in RoboCup |
XIA
Wei-feng, FEI Min-rui |
This paper summarizes the research of Genetic Algorithms
application in RoboCup,from
the view of genetic computation, genetic programming and genetic
learning. One of hybrid intelligent agent architecture is also
proposed, and it can be a way of reference solution for further
study. |
| Modeling
Simulation Environment of Real-time Operating Systems with UML |
LIU
Yu-feng, LI Ren-fa, MO Tie-qiang,
SUN
Ting |
Scheduling policy is a hot spot in research of modern real-time
OS. The evaluation of scheduling policy is the difficulty in the
research. In order to verify the validity of scheduling policy,
we designed a virtual simulation system for the process
scheduling of OS by the use of UML method. This paper presents
the simulation system taking virtual time for driver, taking
task for the underlying scheduling object and taking random
producer for producer of system load. This paper can be used as
a paradigm in the modeling with UML (Unified Modeling Language). |
| On
Interconnection Technology of High Level Architecture
Multi-Federations |
HAIO
Jian-guo,
ZHAO Xing-feng,
HUANG
Jian,
HUANG Ke-di |
The High Level Architecture(HLA)supports
the interoperation between federates joined in a single
federation。As
the scale of simulation systems expanding, the reusability of
federates or even of federations becomes very important for
rapidly enlarging systems. Therefore, the interconnection of
multiple federations is desiderated to be solved. This paper
first analyses the reusability and interoperation of the HLA,
then discusses the four basic methods to implement the
interconnection of multiple federations, finally presents an
approach of hierarchical federations. |
| Research
and Implementation of Automatically Generating Federate Software
Framework from High Level Architecture Object Model |
YIN
Juan, HAO Jian-guo, HUANG Ke-di |
In the federation development based on HLA/RTI, how to minimize
the level of HLA understanding required of federate developer
and simplify the process of creating federate is an urgent job.
This paper analyses the software configuration and program flow
of typical federates and gives an approach of generating
federate software framework from HLA Object Model (FOM or SOM).
A tool based on the approach – FedWizard, which can
automatically generate federate software framework that is C++
code was implemented. |
| Cooperative
Tactical Decision Methods for Multi-aircraft Air Combat
Simulation |
DONG
Yan-fei,
FENG Jing-lei,
ZHANG
Heng-xi |
By introducing the air combat cooperative tactical decision, a
model of air combat situation and threat assessment model ——
a threat index method, is presented. Then the steps for target
assignment and the munitions allocation model are proposed.
Finally, an application example is given, and the results show
that the methods used in this paper can be used effectively in
air combat cooperative tactical decision. |
| Study
on Distributed Interactive
Simulation System for Acoustic
Warfare |
SHEN
Yu-li,
SHEN Yun-tao, ZHAO Jun-wei, Guo Lei, ZHANG
Yun-long |
Under the background of modern sea fight, the design and
software implementation of the Acoustic
Warfare (AW) simulation system are studied, which is
based on the technology of distributed
interactive simulation and modern communications. This
system can be used as a platform for the performance testing of
the underwater weaponry or for the usual tactics drilling.
Considering the demands of the acoustic warfare system, the
arguments focus on the systematical scheme, the interaction and
synchronicity of simulation nodes supported by computer network
technology, and distributed multimedia database supported
subsystem modeling. |
| Collision
Detection for Distributed Virtual Environment |
SUN
Li-xin, ZHU Chang-qian, SUN Ge-wei, ZHUANG Yong |
Because entities and avatars belong to the different
workstation, collision detection for distributed virtual
environment has characteristics of completeness and uniqueness,
namely that two sides of collision have once and only once
response to a collision. In this paper, we analyze shortcomings
of existing algorithm in detail, and then propose a mended
algorithm to ensure uniqueness. Also this new algorithm can be
used with DR technique together. |
| A
Combined Auralization and Visualization System for Enclosed
Spaces |
ZENG
Xiang-yang, CHEN Ke-an, SUN Jin-cai |
Both auralization and visualization are very important for
building up a virtual sound environment. In this paper, we
integrate the basic principle of geometrical acoustics, the
computer technique and the theory of signal processing to design
a combined auralization and visualization system (CAVS). We
describe in detail the main algorithm and the realization of the
system. The execution of the application and the modeling result
show preliminarily that our program not only has the function of
visualization, but also can produce credible virtual sounds. |
| Vision-based
Registration Algorithm for Augmented Reality Using
Optical Flow |
CHEN
Jing,
WANG Yong-tian, SHI Qi,
YAN
Da-yuan |
In order to solve the problem of system delay in augmented
reality, an algorithm is proposed to estimate the motion
parameters of the color markers using optical flow, so that the
position and the orientation between the camera and the dynamic
object can be determined in real time according to the method of
four-point registration and the pinhole model of camera. The
algorithm is applied in an augmented reality system with a video
see-through head-mounted- display (HMD).
The system has a simple structure, requires only a single
CCD camera and a few markers with different colors, and yields
accurate 3D registration results.
It can work at long ranges and is applicable to outdoor
augmented reality applications. |
| A
New Multimode Perceptual Method for 3D Vortex Structure |
BAO
Jin-song, JIN Ye, MA Deng-ze, YAN Jun-qi |
Computational fluid dynamics is becoming increasingly important
for evaluation of design concepts in the product development
process. Scientific visualization provides a very efficient way
to insight into the performance of products. Yet traditional
visual technology only passes information in vision, limitation
of multi-vision, full view and interaction prevents us from the
insight into the process of product development. In this paper
we present a new method for combining the vision, auralization
and haptic of the vortices of a streamline in a vector field.
This paper emphasizes the multimode to enhance vertical feature
extraction, vortex feature visualization combined sonification
and haptic visualization. We are developing a visualization tool
which incorporates virtual reality techniques of the interactive
exploration of the large scalar and vector data sets. Meanwhile
we implement the technique to design and evaluate a new type
air-flow pipe for a car air-conditions manufactory. |
| A
View-dependent Multi-resolution Terrain Simplification Based on
Adaptive Quadtrees |
HUAI
Yong-jian,
HAO Chong-yang,
FAN
Yang-yu, LUO Guan,
ZHANG Xian-yong |
Terrain rendering is widely used in Games, VR, Simulation, GIS,
etc. We present a simple and rapid algorithm of real-time
multi-resolution terrain rendering with high resolution texture
mapping. It uses view-dependent level-of-details (LOD) algorithm
to simplify the DEM terrain. The LOD mesh is based on adaptive
Quadtree, which can generate successive LOD to eliminate crack
between different LOD. The view direction and surface coarse are
considered in the error metric which is used to decide LOD
refinement. We use vertex morphing to smooth LOD translation to
reduce the image popping and maintain constant frame rate. An
approach of multi-resolution texture mapping is proposed to
reduce the texture memory space and selects an appropriate
texture resolution based on the terrain geometry LOD. We have
efficiently implemented the algorithm and acquire a good
tradeoff between image quality and real-time rendering. |
| Development
and Application for 3D Scene Generated System of Driving
Simulator |
ZENG
Ji-guo, XIONG Jian, WAN Hua-sen |
With the progress of computer software and hardware in recent
years, driving simulators are rapidly developed. This paper
introduces a system in which three-dimensional scene of driving
simulator can be automatically generated. In this system,
firstly, road meshes are alternately drew with the road plane
design theory. Secondly, system automatically processes the road
meshes. Finally, other things, such as tree and house, can be
set on the virtual scene, and the scene can be previewed. |
| Study
on Scientific Visualization of Earth Remote Sensing Based on
Imagery Simulation |
WANG
Gang, YU Bing-xi |
Spectral radiometric and spatial response characteristics of
image chains are analyzed, and a scientific visualization method
of earth remote sensing process based on imagery simulation is
presented. An image chains (IC) model is developed in this
paper, and some math models such as pixel-radiance of three
dimensional scene acquired by sensor, output signal of detector,
random noise and modulation transfer function (MTF) are
discussed. Consequently, a remote sensing digital imagery
transfer equation involving sensor synthetic response
characteristics is derived. Moreover, simulation modules,
databases and simulation processes of the professional software RSIS1.0
in the band of visible and near infrared (VNIR) are introduced
briefly. Finally, some simulated remote sensing digital images
are given. |
| Research
on Visual Simulation System
of Autonomous Underwater Vehicle |
SONG
Zhi-ming,
KANG
Feng-ju,
TANG
Kai,
GAO
Li-e,
CHU
Yan-jun |
Based on software platform?/FONT>MultiGen Creator and Vega,
the visual simulation system of autonomous underwater vehicle
was developed. The software and hardware requirements of the
vision node were proposed. The solution to a series of key
techniques was discussed; such as the modeling method based on
Creator, the effect generation of ocean environment based on
modeling and Vega software environment, the development of
visual simulation software and the implement of whole system.
The simulation results show that this visual simulation system
can realistically demonstrate the simulation process of
autonomous underwater vehicle,and
besides, it satisfies the real time requirement of system
simulation. |
| Aircraft
Computer Generation Force in a Generic C3I System
Test-bed |
YU
Xin,
XU Yang, PAN Quan,
ZHANG
Hong-cai |
Some concepts of C3I system and the aircraft Computer
Generation Force (CGF)
in
a generic C3I system test-bet are described in this
paper. A
modern aircraft model with Thrust Vectoring (TV) technique and
the post stall (PST) capacity and the control law are given.
This approach can deal with non-linear problems. It can simplify
the computation processing and lighten computation burden. |
| Study
on Common Simulation System of Land Traffic & Transportation |
HE
Zhen-huan, YANG Zhao-xia, JIANG Xi |
The paper brought out the thought of construction of common
simulation system of land traffic & transportation and then
discussed the construction method from two aspects: construction
method of simulation units and structure mode of the system. On
the basis of it, the common simulation system of civil traffic
and railway could be designed and developed to meet the demand
of study of land traffic & transportation. |
| Scheme
Study of Automobile Driving Training Simulator Based on Virtual
Reality |
CAI
Zhong-fa, LIU Da-jiang, ZHANG An-yuan |
The automobile driving training simulator is a multiple integral
driving training instruction system based on general computer
which includes automobile driving virtual training, driving
examination, and student archive administration. This paper
presents a collective structure of the simulator composed of
operation simulation subsystem, dynamic simulation subsystem,
graphic simulation subsystem, sound simulation subsystem, motion
simulation subsystem, operation evaluation subsystem, and data
management subsystem. The function, technical principle and
schemes of all the subsystem are introduced. And program flow
and training contents of the automobile driving training
simulator are presented. The application and effect of the
driving virtual training are also discussed. |
| A
Shooting-Accuracy-Evaluation-of-Missile Software Developed on
MATLAB |
XIE
Li-ping, ZHA Ya-bing |
In this paper, a shooting-accuracy-evaluation-of-missile
software package (Version1.0) is introduced. This package is
based on the Bayes method of tests and is developed on MATLAB
version 5.3. We introduce its design, its implement and then the
effect of its usage in project practices. |
| CSLab-A
Software
for PID Parameters Tuning of Control Systems |
HU
Zhi-qi, WANG Zhi-feng |
This paper describes CSLab-software for PID parameters tuning of
control systems. Based on Matlab5.3, it adopts several tuning
methods for PID controller parameters aiming at
single variable control systems. The software provides powerful
tools for simulation, analysis and design of control systems,
and built up with an open architecture and high extensibility.
New tuning method can be updated with small costs. Furthermore,
we offer some other complicated control structures so that user
can design control system for their needs. |
| Matlab-based
Dynamic Simulation of Aircraft Environmental Control System |
YANG
Feng,
YUAN Xiu-gan |
According to the working principle, the components' mathematical
model of an aircraft environmental system are set up in this
paper. Using software Matlab, the simulating modules of
components are established. The environmental control system is
built including these component modules and the dynamic
performance of this system is researched. The predicting and
experimental results are in good agreement. This model provides
a new approach to simulate the dynamic response of aircraft
environmental system. It is helpful for designing and optimizing
aircraft environmental control system. |
| Realization
of Dynamic Simulation Software for Strip Laminar Cooling System |
CHEN
Xiao-yan,
CHAI Tian-you,
WANG
Xiao-bo,
REN De-xiang,
HUA
Wen-cheng |
This paper introduces a simulation software package based on the
strip laminar flow cooling system of BaoSteel 2050 hot strip
mill. The software provides the simulation of strip dynamic
moving process after rolling. Visualization and convenient use
are the main characteristics of the software. It provides an
experiment tool for hot mill staff to design the strip laminar
cooling control system and to improve product quality. |
| Real
Time Performance Analysis of ProfiBus Protocol |
RU
Feng,
XUE Jun-yi |
The real time parameter is a key point of protocol’s
performance evaluation. The most important thing is to give an
effective and reasonable method to simulation. Based on the
analysis of the Data Link level of ProfiBus protocol, this
dissertation elaborated a determined stochastic Petri nets model
of protocol’s MAC. Aimed at the real-time performance
analyzing. Also given a calculation formula combine with the
actual example. |
| Parameter
Identification Based on Cascade Extended State Observer |
ZHANG
Rong |
The algorithm of parameter identification by extended state
observer (ESO) is efficient to the parameter identification
problems of the low order systems. However, it is difficult to
find satisfying parameters of the extended state observer for
the high order systems. Furthermore, the estimation precision of
the parameters is not high in only one-time identification. To
avoid the above weakness, we combine in this paper the cascade
extended state observer (CESO) with the algorithm of successive
approximation to reduce the range of the uncertainty of systems
with unknown parameters. The estimation precision of CESO is
increased with the diminishing uncertainty and the precision of
parameter identification is then improved. In the meantime, this
method makes parameter adjustment of CESO become much easier
than that of the former ESO. |
| Application
of Stochastic Petri Net to System Availability Analysis |
JIANG
Le-tian, XU Guo-zhi, YING Ren-dong, ZHANG Hao |
Since presented in 1962, Petri Net is generally focused by
academy and industry. In this paper, the application of
stochastic Petri net on system availability analysis is mainly
discussed. With the beginning of the basic concepts and models
of Petri net, stochastic Petri net (SPN), general stochastic
Petri net (GSPN) and stochastic reward model (SRN) are
illustrated. The application of stochastic Petri net on system
availability analysis and analysis of stochastic Petri net model
is discussed with the example of standby systems. In the end,
the advantages of using stochasticPetri net to model a practical
system are discussed comparing to other modeling methods. |
| Fairness
in Bandwidth for TCP Flows in a Differentiated Services Network |
JIANG
Dong-xing, ZHENG Shao-ren |
Differentiated Services is a solution scheme for QoS in IP
networks. In a differentiated services network, to delivery
fairness share of bandwidth to TCP flows is still an issue to be
addressed when multiple TCP flows with different flow
characterizations respectively coexist within a bandwidth
assurance service traffic aggregate. We studied the impact on
fairness of different packet length based on the Network
Simulator (NS2) and proposed a method to support fairness
bandwidth allocation among TCP flows with an implementation of
Random Early Detection (RED). Based on network simulation,
performance analysis of the method is given. |
| A
Single Warship Passive Location Algorithm Based on Modified
Speed |
XU
Jing,
WANG Xiu-kun, HU Jia-sheng, ZHAO Jing |
A single warship passive location algorithm based on modified
speed is presented. Using modified gain extending Kalman filter,
this algorithm regards the constraints of moving target warship
as additional measures, output of which is zero, and adds it to
the measure equation; the constraints intensity is decided by
the constraints noise variance. A elusion factor is put forward
to constrain the target ship’s speed; the basic idea is to
constrain the direction and value of speed with elusion factor
when the estimated next period is sailing to land or island
according to the present estimated target ship’s position and
speed. It avoids the case of target ship sailing to land or
island. Computer simulations results show that this algorithm
not only avoids the moving track of target ship sailing cross
land or island, but also improves the passive location precision
of maritime moving target warship emitter. |
| Design
and Modeling of the Ship Shaft Generator Simulator |
GAO
Hai-bo,
CHEN Ming-zhao, CHEN Hui |
This paper briefly introduces the principles of shaft generator
in WMS2000 engine room simulator, the methods of designing and
modeling, and some detailed mathematical models. The shaft
generator simulator takes SIEMENS shaft generator system as a
model generator. According to possibility and training need, the
shaft simulator has been simplified to consist of three parts
including shaft generator operation panel in central control
room, shaft generator rectifier/inverter control panel in engine room and simulation test system in power
plant monitoring computer. The following mathematical models are
built: energy models, electrical circuit models and control
system models. The energy models are built on the grounds of
energy balance principle. The electrical circuit models
calculate the current, voltage and frequency of shaft generator
according to experience formula. The control system models are
in accordance with the character curves. The mathematical models
can describe the normal and abnormal running processes of the
shaft generator system and get a better simulation accuracy
under whether stable or dynamic running condition. |
| Prediction
of Big Ship Motion with Wave Survey |
PENG
Xiu-yan,
ZHAO Xi-ren, LU Su-ping, WEI Na-xin |
The prediction method of the big ship motion posture is
discussed, using the wave survey in front of the ship and the
survey data of the big ship motion. The Automation Regressive
Moving Average (ARMA) model of the ship motion prediction and
the Automation Regressive (AR) model of the wave prediction in
the front of the ship are introduced in detail. The prediction
algorisms for the wave amplitude and the ship motion posture are
given. And the longitudinal sway motion of the big ship is
simulated. The simulation calculation shows that the prediction
precision is satisfied. Finally the ARMA method is compared with
the common AR method. |
| Usage
of Bayesian Method in Shooting Accuracy Evaluation of Missiles |
ZHA
Ya-bing, XIE Li-ping |
This paper discusses how to make good use of the useful
information gained from the results of the simulation
experiments so as to accomplish the shooting accuracy evaluation
of missiles in case the real experiment sample is small, by
using Bayesian method. First the writers introduce chiefly the
basic idea of the Bayesian theory. Then the writers put emphasis
on how to get the prior information from the results of
simulation experiments through the bootstrap method and how to
practice the posterior test subsequently. At last the writers
show several problems that have to be taken into account while
applying Bayesian method to project practices. |
| Study
on Credibility of Physical Effects of Man-in-the-Loop Simulation
System |
ZHANG
Wei,
WANG Jiang-yun,
WANG
Xing-ren |
The credibility of physical effects made by physical instruments
in a man-in-the-loop simulation system can directly influence
the credibility and application effect of the whole system. In
this paper, the factors affecting the credibility of physical
effects are analyzed, some essential principles followed in the
design of a visual simulation are presented. Then the influences
to the visual simulation credibility made by models of
geographical environment and the influences to the application
effect made by the subjective motion of users are discussed. |
| Simulation
for the Scouting System Searching Objects |
LI
Zeng-lu |
This
paper analyses the factors that influence the performance of
searching system. On the basis of topographic data for the fight
field, the paper studies the computation method of vision area
when the ground scouting system searches ground objects or low
altitude flying objects, and gives the computation method of the
stay time of the object in the visual field of optical lens on
the basis of the characteristic for the optical lens and the
relation between the lens and objects. |
| Variable
Structure Control of the Electro-hydraulic Servo System |
HAN
Chong-wei, LIN Ting-qi, XIAO Wen-wei, TONG Qing-yu, LIN Zi-qi,
ZHU Yuan-hua,
JIA
Zhi-yong |
Aiming at the pump-controlled cylinder in electro-hydraulic
servo system, this paper designs the switching function using
the optimal method and Variable Structure Control (VSC) law
using reaching condition, and designs observer to obtain
pitching speed. The simulation and experiment results show that
the VSC control system based on the optimal method is robust to
parameters uncertainties and disturbance, it has been
successfully applied in the complex and high performance system,
the results demonstrate it better than the conventional PID
control. |
| Simulation
for Sheet Metal Flexible Manufacturing System Based on
Stocker’s Service Capability |
SU
Chun |
Combined with the development of sheet metal Flexible
Manufacturing System (FMS), simulation experiments of the sheet
metal FMS were carried out. The criterion of stocker’s maximum
service capability is proposed. Based on the capability, by
means of changing the stocker’s parameters or scheduling rules
or the number of machining cells, the basic principle of sheet
metal FMS’s design and scheduling is set forth. The results
have been preliminarily applied in the development of domestic
sheet metal FMS. |
| Dynamic
Counteracting Method for the Centrifugal Force Acting on the
Shaker of Vibration Table in the Centrifugal Field |
LEI
Hu-min,
TIAN Chang-hui, LIU Wen-jiang, NIU Bao-liang,
HAN Yu-hang |
In the experiment system of the synthesis environment of
vibration and centrifuge, the centrifugal force will act on the
shaker of vibration table and force it deviating from the
original operation position, which will effect on the normal
operation of the shaker. We proposed a dynamic counteracting
method by means of the pneumatic spring to counteract on the
centrifugal force. In order to realize this method in the
experiment system, we designed and established a pneumatic servo
system with the computer control. The test results show that the
servo system has an excellent performance and can be used in the
automatic counteracting system. |