High efficiency driving of linear motor based on piezoelectric actuator

2011 ◽  
Vol 19 (10) ◽  
pp. 2464-2471 ◽  
Author(s):  
潘松 PAN Song ◽  
黄卫清 HUANG Wei-qing ◽  
王寅 WANG Yin ◽  
赵淳生 ZHAO Chun-sheng
Keyword(s):  
Piezoelectric Actuator ◽  
High Efficiency ◽  
Linear Motor

Simulation on Linear-Motor-Driven Water Hydraulic Reciprocating Plunger Pump

2013 ◽  
Vol 842 ◽  
pp. 530-535 ◽  
Author(s):  
Zeng Meng Zhang ◽  
Yong Jun Gong ◽  
Jiao Yi Hou ◽  
Han Peng Wu
Keyword(s):  
Flow Rate ◽  
Deep Sea ◽  
High Efficiency ◽  
Control Method ◽  
Sea Water ◽  
Linear Motor ◽  
Low Flow ◽  
Flow Pulsation ◽  
Plunger Pump ◽  
Water Hydraulic

The water hydraulic reciprocating plunger pump driven by linear motor is suitable to deep sea application with high efficiency and variable control. Aiming to study the principle structure and working characteristics of the pump, two patterns of valve and piston distribution were designed. And the control method and the performance were analyzed by simulation based on the AMESim model. The results show that the pressure and flow pulsation of piston type pump are much smaller than the valve type, even though the piston type is large in scale and works at low flow rate. Compared with a valve distribution tri-linear-motor reciprocating plunger pump (VDTLMP), as the flow rate of the piston distribution double linear motor reciprocating plunger pump (PDDLMP) is decreased from 36.7 L/min to 21.2 L/min theoretically, the pressure pulsation amplitude is decreased from 46% to 2%, and the flow pulsation rate is also decreased from 0.266 to 0.007. These results contribute to the research on deep-sea water hydraulic power pack and direct drive pump with high efficiency and energy conservation.

Compact size ultrasonic linear motor using a dome shaped piezoelectric actuator

2012 ◽  
Vol 28 (2-3) ◽  
pp. 123-131 ◽  
Author(s):  
Man-Soon Yoon ◽  
Neamul Hayet Khansur ◽  
Kyung-Sun Lee ◽  
Young Min Park
Keyword(s):  
Piezoelectric Actuator ◽  
Linear Motor ◽  
Compact Size

The Application of Linear Motor Analysis

2014 ◽  
Vol 490-491 ◽  
pp. 983-986
Author(s):  
Yu Ping Zhao ◽  
Yu Hai Xu
Keyword(s):  
Development Process ◽  
High Efficiency ◽  
Linear Motor ◽  
Numerical Control ◽  
Industrial Safety ◽  
Emissions Reduction ◽  
Market Demand ◽  
Transportation Equipment ◽  
Drive Control ◽  
Safety Production

In this paper, through research on the development of linear motor applications both at home and abroad, find out the linear motor application in the field of technology gap, in order to promote linear motor in the domestic promotion and use. Because the linear motor has its own unique advantages, in the mechanical and electrical integration of machinery and machine tool has been widely used, but in the numerical control machine tools, electric processing equipment, mining transportation equipment in areas such as yet there is a big gap, the performance of their products, the types, application field in a large number of blank or infancy. Only seize the opportunity of market demand, the development and application of linear motor and drive control technology on the market widely promotion, is bound to be in the driver with high efficiency, energy conservation and emissions reduction, promote industrial safety production from low-end to high-end equipment the development process of rapid ascension.

High Efficiency Megawatt Motor (HEMM) Cryocooler Linear Motor - Analysis and Test

2020 ◽  
Author(s):  
Kirsten P. Duffy ◽  
Paul Passe ◽  
Rodger W. Dyson ◽  
Yaritza De Jesus-Arce ◽  
Aaron D. Anderson
Keyword(s):  
High Efficiency ◽  
Linear Motor

scholarly journals Fuzzy control of the dual-stage feeding system consisting of a piezoelectric actuator and a linear motor for electrical discharge machining

2019 ◽  
Vol 234 (5) ◽  
pp. 945-955
Author(s):  
Muyad K Bani Melhem ◽  
Milan Simic ◽  
Chow Yin Lai ◽  
Yong Feng ◽  
Songlin Ding
Keyword(s):  
Fuzzy Control ◽  
Piezoelectric Actuator ◽  
Electrical Discharge ◽  
Material Removal ◽  
Control Algorithm ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
Linear Motor ◽  
Motor Speed ◽  
Machining Processes

Gap width is an important factor that affects material removal rate, surface finish, and machining stability in electrical discharge machining processes. This research is to develop a novel control method for a new hybrid positioning system which consists of a linear motor and a piezoelectric actuator for high-efficiency electrical discharge machining processes. In the new system, the linear motor provides the macro feeding while the piezoelectric actuator feeds the workpiece in micro scale at high frequency. To reduce the delay caused by separate movements of the linear motor and piezoelectric actuator, a new control algorithm was developed to synchronize the movements of the motor and piezoelectric actuator. A fuzzy control system was used to control the feeding process. Piezoelectric actuator position and its speed were selected as the fuzzy inputs, while the fuzzy output was the linear motor speed. Cutting experiments were conducted, and results show that the fuzzy system is more powerful than the conventional algorithm and the new algorithm with constant motor speed. An increase in material removal rate of 1.6 times was achieved using the proposed fuzzy control algorithm.

scholarly journals High-Efficiency Surface Grinding with Linear Motor Driven Table System.

2000 ◽  
Vol 66 (643) ◽  
pp. 1008-1012
Author(s):  
Takeyasu KOBAYASHI ◽  
Ichiro INASAKI ◽  
Akinori YUI ◽  
Atsushi HORIKOSHI
Keyword(s):  
High Efficiency ◽  
Linear Motor ◽  
Surface Grinding

Design and Analysis of a High Efficient Multi-Segment Redundancy Linear Motor

2020 ◽  
Vol 13 ◽  
Author(s):  
Chunyuan Shi ◽  
Jingang Jiang ◽  
Lei Wang ◽  
Wei Pan ◽  
Zili Tang ◽  
...  
Keyword(s):  
High Speed ◽  
High Efficiency ◽  
Linear Motor ◽  
Normal Direction ◽  
Magnetic Flux Density ◽  
Iron Core ◽  
Linear Motors ◽  
High Efficient ◽  
The One ◽  
Direction Component

Background: The electromagnetic aircraft launch system is used to assists the carrier aircraft to accelerate takeoff on a short distance on the flight deck. Linear motors are required to have high efficiency and thrust / volume ratio, as the actuator of the EMALS. In addition, linear motors were required have the fluctuation of the thrust is as small as possible to prevent impact and overstress on the airborne equipment. The thrust performance and thrust fluctuation suppression of linear motors are the current research hotspots in the field of EMALS. Objective: To improve the efficiency of the system, this paper proposes a multi-segment LPMSM. Methods: We design a decentralized primary structure based on the Autonomous Decentralized System (ADS) concept. Only the coils near the moving secondary are motivated during the launch process, the others could be released from being driven after the secondary slide over; this control will save the waste of energy. Results: A multi-segment linear motor is proposed to improve the efficiency of the EMALS. This motor consists of two sections - the one with iron core for the low speed process and the one without iron core for the high speed process. Conclusion: The normal direction component of the air gap magnetic flux density is much larger than that of the longitudinal component, and their values are 80-90% and 10-20% respectively. For the normal direction component, it is mainly affected by the third, seventh, and ninth harmonics. The accelerating and energy test results show that, in the accelerating process, the efficiency of the linear motor can be more than 90%, and the acceleration is stable.

Structure Design and Analysis of Multi-Stage High Efficiency Linear Pumping Unit

2017 ◽  
Vol 872 ◽  
pp. 256-260
Author(s):  
Sen Wang ◽  
Yang Yang Zhao ◽  
Xiu Min Yang ◽  
Hong Kui Yan ◽  
Feng Guo ◽  
...  
Keyword(s):  
High Efficiency ◽  
Stage Structure ◽  
Linear Motor ◽  
Structure Design ◽  
Operating Efficiency ◽  
Control Precision ◽  
Multi Stage ◽  
High Efficient ◽  
Pumping Unit ◽  
High Control

A multi-section high efficient pumping unit was designed. The pumping unit has a multi-stage structure including forcer part of the use of linear motor and four-stage linear motor extract oil one after another. Consumption can be reduced and the operating efficiency of the machine can be improved. Each component of high efficiency linear pumping unit is introduced. Using power inverter to control pumping unit without complicated equipment and contact limit controller, pumping stroke adjustment can be realized. The control system adopts the vector control, high control precision and anti-interference ability.

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