scholarly journals Static and Dynamic Characterization of High-Speed Silicon Carbide (SiC) Power Transistors

Engineering ◽  
2010 ◽  
Vol 02 (09) ◽  
pp. 673-682
Author(s):  
Johnson A. Asumadu ◽  
James D. Scofield
Keyword(s):  
Silicon Carbide ◽  
High Speed ◽  
Dynamic Characterization ◽  
Power Transistors

Static and Dynamic Characterization of High Power Silicon Carbide BJT Modules

2016 ◽  
Vol 52 (6) ◽  
pp. 4990-4998 ◽  
Author(s):  
Muhammad Nawaz ◽  
Nan Chen ◽  
Filippo Chimento ◽  
Liwei Wang
Keyword(s):  
Silicon Carbide ◽  
High Power ◽  
Dynamic Characterization

Dynamic Characterization of a Fiber-Metal Laminate

2013 ◽  
Vol 535-536 ◽  
pp. 48-51 ◽  
Author(s):  
Rafael Celeghini Santiago ◽  
Marcilio Alves
Keyword(s):  
High Speed ◽  
High Strain ◽  
Strain Rates ◽  
Dynamic Characterization ◽  
Fiber Glass ◽  
Strain And Strain Rate ◽  
Fiber Metal Laminate ◽  
Split Hopkinson ◽  
Fiber Metal

The mechanical strength of a fiber-metal laminate is not so well explored at high strain rates, although its constituents are prone to exhibit such effects. In this paper, we describe an investigation of aluminium-fiber glass material using the Split Hopkinson bar device. We report on various experimental issues related to these tests, giving some emphasis to the use of high speed filming to obtain information on the specimen strain and strain rate.

Characterization of Electric Discharge Machining for Silicon Carbide Single Crystal

2008 ◽  
Vol 600-603 ◽  
pp. 855-858 ◽  
Author(s):  
Tomohisa Kato ◽  
Toshiya Noro ◽  
Hideaki Takahashi ◽  
Satarou Yamaguchi ◽  
Kazuo Arai
Keyword(s):  
Silicon Carbide ◽  
High Temperature ◽  
Electric Discharge ◽  
High Voltage ◽  
High Speed ◽  
Surface Damage ◽  
Lower Surface ◽  
Etch Pits ◽  
Electric Discharge Machining

In this study, we report electric discharge machining (EDM) as a new cutting method for silicon carbide (SiC) single crystals. Moreover, we discuss characteristics and usefulness of the EDM for the SiC. The EDM realized not only high speed and smooth cutting but also lower surface damage. Defect propagation in the EDM SiCs have been also estimated by etch pits observation using molten KOH, however, we confirmed the EDM has caused no damage inside the SiCs in spite of high voltage and high temperature during the machining.

Dynamic Characterization of an Additive Manufactured Turbine Wheel of Turbocharger

2019 ◽  
Author(s):  
Panneer Selvam R. ◽  
Muthukannan Duraiselvam ◽  
Sanjay G. Barad ◽  
Dilip Kumar
Keyword(s):  
Dynamic Characteristics ◽  
High Speed ◽  
Conventional Technique ◽  
Mode Shapes ◽  
Modal Parameters ◽  
Dynamic Characterization ◽  
Turbine Wheel ◽  
Correlation Studies ◽  
Simulated Environment

Abstract Experimental Modal Analysis (EMA) is a conventional technique for establishing the modal parameters of the components. The modal parameters are the dynamic characteristics viz. frequency, mode shapes and damping that are used for assessing and validating the design predictions through correlation studies. For this task EMA technique is adopted to assess the dynamic characteristics of an additive manufactured (AM) turbine wheel of a turbocharger. Correlation studies are undertaken to validate the theoretical model developed. These Correlation studies ensured that there is no major deviations to proceed for high speed spin testing of this turbine wheel in simulated environment. The possible interference or resonances in the operating range are identified for safe operation of the test rotor.

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