Analysis of torque fluctuation characteristic for toroidal electromechanical drive

2018 ◽  
Vol 58 (4) ◽  
pp. 497-512
Author(s):  
Xin Liu ◽  
Maopu Sun ◽  
Xiaoxia Chen
Keyword(s):  
Fluctuation Characteristic ◽  
Electromechanical Drive

Separation of faults of electromechanical drive chain using artificial intelligence methods

2013 ◽  
Vol 4 (1) ◽  
pp. 35-41 ◽  
Author(s):  
V. Füvesi ◽  
E. Kovács
Keyword(s):  
Detection Method ◽  
Fuzzy Model ◽  
Structure Model ◽  
Neuro Fuzzy ◽  
Electromechanical Drive ◽  
Different Types ◽  
Gradient Based ◽  
Feed Forward Neural Networks ◽  
Drive Chain ◽  
Edge Detection Method

Abstract In this paper a complex drive chain is modelled with Local Linear Neuro-Fuzzy Model (LLNF). The developed models were used for detecting different faults that may occur in the system. The models were developed based on measurements carried out on the real system. Using feed-forward neural networks with perceptron neuron structure, model-based fault diagnosis of the analysed system was developed to separate the different faults. The performance and efficiency of the developed different types of artificial neural network's structures were compared using gradient based edge detection method.

scholarly journals ELECTROMECHANICAL DRIVE OF PRODUCTION WELL SUCKER ROD PUMP

2017 ◽  
pp. 125-128
Author(s):  
R. B. Bulatov ◽  
L. G. Tugashova
Keyword(s):  
Utility Model ◽  
Production Well ◽  
Drive Mechanism ◽  
Electromechanical Drive ◽  
Sucker Rod ◽  
Sucker Rod Pump

The paper considers the design and operation of electromechanical drive of sucker rod pumps, which received a patent for utility model. The proposed device allows to significantly reduce weight and size dimensions of the drive mechanism of serial sucker rod pumps.

scholarly journals MODELLING OF ELECTROMECHANICAL DRIVE SYSTEMS WITH THE USE OF MODAL CONDENSATION

Transport ◽  
2005 ◽  
Vol 20 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Damian Gasiorek ◽  
Arkadiusz Mežyk ◽  
Eugeniusz Switoński
Keyword(s):  
Dynamic Model ◽  
Software Package ◽  
Electromechanical Model ◽  
Electromechanical Drive ◽  
Mechanical Subsystem ◽  
Drive Systems ◽  
Dynamic Phenomena

This paper presents a method of developing a dynamic model enabling the study of the effect of the flexibility of the housing on dynamic phenomena in electromechanical drive systems. The research was performed on the basis of an electromechanical model with feedback between the mechanical subsystem (toothed gear with housing) and the electrical subsystem using a software package developed by the author in MATLAB environment.

scholarly journals REDUCTION OF VIBRATIONS IN ELECTROMECHANICAL DRIVE SYSTEMS WITH VECTOR CONTROL

Transport ◽  
2004 ◽  
Vol 19 (6) ◽  
pp. 276-279
Author(s):  
Paweł Bachorz ◽  
Eugeniusz Switoński ◽  
Arkadiusz Meżyk
Keyword(s):  
Genetic Algorithms ◽  
Control System ◽  
Vector Control ◽  
Structural Parameters ◽  
Power Drive ◽  
Design Variables ◽  
Electromechanical Drive ◽  
Pi Controllers ◽  
Drive Systems ◽  
Vector Control System

This paper presents the issues of modelling electromechanical drive systems in a mechatronic approach. The effect of a vector control system on the dynamics of the system is shown. The optimisation of the system in order to minimise vibration amplitudes and amplitudes of forces in selected kinematic pairs of a high power drive system was performed with the use of genetic algorithms. Design variables of the optimisation process comprised the structural parameters of the mechanical part as well as the settings of PI controllers of the vector control system. The selected results of numerical computations are presented.

scholarly journals Fluctuation Characteristic of Temperature and Salinity in Coastal Waters around Jeju Island

2003 ◽  
Vol 36 (3) ◽  
pp. 306-316 ◽  
Author(s):  
Jun-Cheol KO ◽  
Jun-Teck KIM ◽  
Sang-Hyun KIM ◽  
Hong-Kil RHO
Keyword(s):  
Coastal Waters ◽  
Jeju Island ◽  
Fluctuation Characteristic

Sensorless Force Control Interface for DEAP Stack-Actuators

2015 ◽  
Author(s):  
Thorben Hoffstadt ◽  
Jürgen Maas
Keyword(s):  
Force Control ◽  
Electromechanical Coupling ◽  
Force Measurement ◽  
Scale Up ◽  
Electroactive Polymers ◽  
Open Loop ◽  
Control Interface ◽  
Electromechanical Drive ◽  
Electrostatic Pressure ◽  
Drive Systems

Transducers based on dielectric electroactive polymers (DEAP) offer an attractive balance of work density and electromechanical efficiency. For example in automation and haptic applications, especially multilayer transducers are used to scale up their absolute deformation and force. Depending on the application different transducer controls have to be realized to match the specifications of the particular application. However, analogous to conventional electromechanical drive systems an inner sensor-less force control can be realized for DEAP transducers, too. For this force control the nonlinear relations between voltage and electrostatic pressure as well as the electromechanical coupling have to be considered. The resulting open-loop force control can be used for superimposed motion controls, such as position, vibration and impedance controls. Therefore, within this contribution the authors propose a model-based feedforward force control based on an overall model of the transducer that does not require any force measurement. Finally, the derived open-loop force control interface is experimentally validated using in-house developed DEAP stack-transducers and driving power electronics.

A study on plasma plume fluctuation characteristic during A304 stainless steel laser welding

2018 ◽  
Vol 33 ◽  
pp. 1-9 ◽  
Author(s):  
Wencong Qiu ◽  
Lijun Yang ◽  
Shengbin Zhao ◽  
Ruixia Yang ◽  
Tong Liu
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Plasma Plume ◽  
Fluctuation Characteristic
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