Modeling, design and control of high-speed powerful solenoid based on giant magnetostrictive material

2004 ◽  
Author(s):  
Zhifeng Tang ◽  
F. Lv ◽  
Zhanqin Xiang ◽  
Mingfan Li
Keyword(s):  
High Speed ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material ◽  
And Control

Design of Pulsed Jet On-Off Valve Based on Giant Magnetostrictive Actuator

2007 ◽  
Author(s):  
Aihua Meng
Keyword(s):  
High Speed ◽  
Basic Structure ◽  
Magnetostrictive Material ◽  
Structure Selection ◽  
Pulsed Jet ◽  
Advantages And Disadvantages ◽  
Giant Magnetostrictive Material ◽  
Magnetostrictive Actuator ◽  
Speed Response ◽  
Pulse Jet

The pulsed jet device is a kind of device that can jet rapidly with micro flux. Present jet methods cannot fulfill the requirements of a large-flux, high-speed and stability in some applications. Combining with the character of pulsed jet device and the advantage of high-speed on-off valve, a new kind of micro-flux jet device —pulse jet on-off valve was designed. The basic structure and the working theory of the device were introduced first; then the valve was studied in detail on the basis of the requirements of jet speed and flux, including structure selection, rated pressure computation, dimension designing etc.. The advantages and disadvantages of actuators driven by electromagnetic, piezoelectric and giant magnetostrictive material (GMM) were compared, then GMM was chosen to drive the pulsed jet on-off valve. The flux and jet speed response experiments demonstrated that the pulsed jet on-off valve based on giant magnetostrictive actuator (GMA) could fulfill the requirements of application.

Design, Modeling and Simulation of an Innovation Pneumatic High Speed on-Off Valve Based on Giant Magnetostrictive Material

2011 ◽  
Vol 422 ◽  
pp. 243-249 ◽  
Author(s):  
Feng Zhang ◽  
Hao Liu ◽  
Guo Liang Tao ◽  
Wei Zhong
Keyword(s):  
Cantilever Beam ◽  
High Speed ◽  
Mechanical Vibration ◽  
Fast Response ◽  
Magnetostrictive Material ◽  
High Frequency Response ◽  
Giant Magnetostrictive Material ◽  
Dynamic Performances ◽  
Magnetostrictive Actuator ◽  
Large Flow

Based on giant magnetostrictive material, a new design of pneumatic high speed on-off valve is presented in this paper. To settle the problem of balancing fast response and large flow, a cantilever beam is employed as both displacement amplifier and valve spool in the innovation structure of the valve. The dynamic model of the valve is established by analyzing the dynamic performances of the giant magnetostrictive actuator and the cantilever beam, based on the theories of electromagnetism and the mechanical vibration. A simulation on this model is carried out to investigate the performance of the valve. Results of the simulation show that the new pneumatic high speed on-off valve is able to achieve the goal of high frequency response, while satisfying the requirement of a large flow.

Design and control of a high-speed direct-drive manipulator

1989 ◽  
Vol 27 (3) ◽  
pp. 375-394 ◽  
Author(s):  
K. YOUCEF-TOUMI ◽  
A. T. Y. KUO
Keyword(s):  
High Speed ◽  
Direct Drive ◽  
And Control

Effect of Slice Priority for admission control in 5G Wireless Networks: A comparison study for two Fuzzy-based systems considering Software-Defined-Networks

2020 ◽  
Vol 26 (3) ◽  
pp. 169-183
Author(s):  
Phudit Ampririt ◽  
Yi Liu ◽  
Makoto Ikeda ◽  
Keita Matsuo ◽  
Leonard Barolli ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Admission Control ◽  
High Speed ◽  
Additional Parameter ◽  
Fifth Generation ◽  
Efficient Management ◽  
Grade Of Service ◽  
User Request ◽  
Control Decision ◽  
And Control

The Fifth Generation (5G) networks are expected to be flexible to satisfy demands of high-quality services such as high speed, low latencies and enhanced reliability from customers. Also, the rapidly increasing amount of user devices and high user’s requests becomes a problem. Thus, the Software-Defined Network (SDN) will be the key function for efficient management and control. To deal with these problems, we propose a Fuzzy-based SDN approach. This paper presents and compares two Fuzzy-based Systems for Admission Control (FBSAC) in 5G wireless networks: FBSAC1 and FBSAC2. The FBSAC1 considers for admission control decision three parameters: Grade of Service (GS), User Request Delay Time (URDT) and Network Slice Size (NSS). In FBSAC2, we consider as an additional parameter the Slice Priority (SP). So, FBSAC2 has four input parameters. The simulation results show that the FBSAC2 is more complex than FBSAC1, but it has a better performance for admission control.

Design, Construction and Control of a Remotely Operated Vehicle (ROV)

2011 ◽  
Author(s):  
Alireza Marzbanrad ◽  
Jalil Sharafi ◽  
Mohammad Eghtesad ◽  
Reza Kamali
Keyword(s):  
High Speed ◽  
Degrees Of Freedom ◽  
Remotely Operated Vehicle ◽  
Six Degrees Of Freedom ◽  
Depth Sensors ◽  
Control Schemes ◽  
On Line ◽  
Operation Unit ◽  
And Control ◽  
Design Construction

This is report of design, construction and control of “Ariana-I”, an Underwater Remotely Operated Vehicle (ROV), built in Shiraz University Robotic Lab. This ROV is equipped with roll, pitch, heading, and depth sensors which provide sufficient feedback signals to give the system six degrees-of-freedom actuation. Although its center of gravity and center of buoyancy are positioned in such a way that Ariana-I ROV is self-stabilized, but the combinations of sensors and speed controlled drivers provide more stability of the system without the operator involvement. Video vision is provided for the system with Ethernet link to the operation unit. Control commands and sensor feedbacks are transferred on RS485 bus; video signal, water leakage alarm, and battery charging wires are provided on the same multi-core cable. While simple PI controllers would improve the pitch and roll stability of the system, various control schemes can be applied for heading to track different paths. The net weight of ROV out of water is about 130kg with frame dimensions of 130×100×65cm. Ariana-I ROV is designed such that it is possible to be equipped with different tools such as mechanical arms, thanks to microprocessor based control system provided with two directional high speed communication cables for on line vision and operation unit.

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