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We propose a Linear Sliding Wave Energy Converter (LS-WEC) to power ocean buoys by wave energy harvesting. The concept involves a linear translator and a rotary generator that roll and pitch in ocean waves. The translator is a steel mass that is supported by wheels on rails with low-friction bearings. The translator linear motion is converted to rotary motion to spin an electric generator using a...
Spoke-type interior permanent magnet (IPM) machines are an attractive topology for high-performance electric motors, especially designed for vehicle traction applications. In this paper, a special design for a spoke-type IPM motor is presented to enhance motor flux-weakening capability in the operation over a wide speed range. The proposed design consists of a simple and robust mechanical device that...
This paper deals with the analysis of shaft loaded by magnetic force. The shaft deflection and critical speed are obtained by two methods: Transfer Matrix Method and Finite Element Method. The Finite Element Method is well known, however, the Transfer matrix method not. Therefore, the first section of this paper is focused on the brief introduction to this method. The results obtained by both methods...
In this paper we present the redesign of a scanner for eddy-current (EC) and ultrasonic (UT) measurements in the central bores of large rotors in power plants. It focuses on an innovative leg-unit which allows for passing steps and thus is able to scan in almost all types of straight bores above 70mm. It is actuated purely electromechanically, using a serial-elastic power transmission with a spindle...
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