Property study of power transmission system for rotary ultrasonic application

2016 ◽  
Vol 232 (2) ◽  
pp. 305-315
Author(s):  
Wu Chenjun ◽  
Chen Shijin ◽  
Cheng Kai ◽  
Ding Hui
Keyword(s):  
High Speed ◽  
High Efficiency ◽  
Power Transmission ◽  
Transmission System ◽  
Ultrasonic Power ◽  
Power Transmission System ◽  
Compensation Methods ◽  
Transmission Part ◽  
Hard And Brittle Materials ◽  
Hollow Copper

Rotary ultrasonic applications are being widely used in machining hard and brittle materials. Conventional conducting ring used as power transmission part limits the ultrasonic applications from rotating at high speed. A high efficiency power transmission system is defined in this article to solve this problem. It consists of a contactless transformer, which was made up of two hollow copper coils, ultrasonic power supply and compensation capacitors. Four compensation methods are proposed and their properties are analyzed through simulations and experiments. The simulations show that S-S compensation is superior to others on the performance of transient and steady circuit parameters and the max transmit efficiency can reach about 97.2% when appropriate compensation method and capacitance are used. Rotary experiments show that speed has little effect on the property of the system.

Focused microwave power transmission system with high‐efficiency rectifying surface

2018 ◽  
Vol 12 (5) ◽  
pp. 808-813 ◽  
Author(s):  
Yazhou Dong ◽  
Shi‐Wei Dong ◽  
Ying Wang ◽  
Shuo Liu ◽  
Xiaojun Li ◽  
...  
Keyword(s):  
Microwave Power ◽  
High Efficiency ◽  
Power Transmission ◽  
Transmission System ◽  
Power Transmission System

scholarly journals Design and Development of Power Transmission System for Green and Light Weight Vehicles: A Review

2018 ◽  
Vol 12 (1) ◽  
pp. 81-94 ◽  
Author(s):  
Hailemariam N. Hailu ◽  
Daniel T. Redda
Keyword(s):  
High Efficiency ◽  
Power Transmission ◽  
Experimental Tests ◽  
Transmission System ◽  
Simulation Software ◽  
Design And Development ◽  
Conventional Vehicle ◽  
Power Transmission System ◽  
Exhaust Gas Emission ◽  
Gear Box

A study on green vehicle was introduced and promoted to minimize the problem of air pollution caused by emissions of conventional vehicle. Green mobility are vehicles with low fuel/energy consumption and low/zero exhaust gas emission, these vehicles are like hybrid, battery powered, and fuel cell electric vehicle that can be enhanced to be more efficient than the conventional vehicles through a new design and development of power transmission system. Power transmission system for green and lightweight vehicles consists of different components like gear box, propeller shaft, differential and final drive. In this review more emphasis is given to gear box due to some reasons: firstly, it is one of the heaviest component of the power train system and as a result weight reduction is critically needed to increase the efficiency of the vehicle. Secondly, gearshift takes place therefore, torque interruption needs to minimize. The use of simulation software's i. e. Mat lab, AMEsim, cruise software and other similar programs can simulate high-efficiency power transmission system. The results from the simulation software will be validated by experimental tests on test rigs. One way of minimizing fuel consumption is to reduce the weight of the gearbox by 10% reduction in vehicle weight can improved fuel economy by about 5-7%. As different researchers confirm that to have high vehicle efficiency the type of the transmission they used matters. A vehicle using automated manual transmission (AMT) and dual clutch transmission is more efficient in terms of less energy loss and gearshift comfort.

Development of Helicopter Power Transmission System Technology

2011 ◽  
Vol 86 ◽  
pp. 1-17 ◽  
Author(s):  
Ze Yong Yin ◽  
Bi Bo Fu ◽  
Tong Bo Xue ◽  
Yong Hong Wang ◽  
Jie Gao
Keyword(s):  
High Speed ◽  
Power Transmission ◽  
Transmission System ◽  
System Technology ◽  
Process Technology ◽  
Development History ◽  
Power Transmission System ◽  
Analysis Technique ◽  
Noise Vibration ◽  
The Cost

The helicopter power transmission system technology is the key technical area for improving the helicopter performance, reducing the noise/vibration level of helicopters and decreasing the cost of life cycle of helicopters. In this paper, the technical characteristics of the helicopter power transmission system are introduced first. Then, the development history and trend of the transmission configuration, the component and the design and analysis technique of the transmission system are described. The advanced material and process technology applied in the helicopter power transmission system are also described. Finally, the power transmission system technology used in the high speed helicopters is briefly presented.

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