Institution
General Electric
Company•Boston, Massachusetts, United States•
About: General Electric is a company organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Turbine & Rotor (electric). The organization has 76365 authors who have published 110557 publications receiving 1885108 citations. The organization is also known as: General Electric Company & GE.
Topics: Turbine, Rotor (electric), Signal, Combustor, Coating
Papers published on a yearly basis
Papers
More filters
••
TL;DR: This paper deals with the demodulation of the current signal of an induction motor driving a multistage gearbox for its fault detection.
Abstract: Demodulation of vibration signal to detect faults in machinery has been a prominent prevalent technique that is discussed by a number of authors. This paper deals with the demodulation of the current signal of an induction motor driving a multistage gearbox for its fault detection. This multistage gearbox has three gear ratios, and thus, three rotating shafts and their corresponding gear mesh frequencies (GMFs). The gearbox is loaded electrically by a generator feeding an electrical resistance bank. Amplitude demodulation and frequency demodulation are applied to the current drawn by the induction motor for detecting the rotating shaft frequencies and GMFs, respectively. Discrete wavelet transform is applied to the demodulated current signal for denoising and removing the intervening neighboring features. Spectrum of a particular level, which comprises the GMFs, is used for gear fault detection
231 citations
••
TL;DR: In this article, Borate-based coatings containing refractory particulates and silicon carbide coatings sealed with borates have been found capable of protecting C/C composites against air oxidation.
231 citations
••
231 citations
••
TL;DR: Preliminary measurements on supercooled liquid tin andsupercooled water show their rate of nucleation has a very large negative temperature coefficient corresponding to an activation energy of the order of − 2 × 105 calories.
231 citations
••
TL;DR: The resulting solution is a smooth composite of parametric surface segments, i.e. each surface piece is represented by a vector (point)-valued function.
Abstract: The problem of defining a smooth surface through an array of points in space is well known. Several methods of solution have been proposed. Generally, these restrict the set of points to be one-to-one defined over a planar rectangular grid (X, Y-plane). Then a set of functions Z = F(X, Y) is determined, each of which represents a surface segment of the composite smooth surface. In this paper, these ideas are generalized to include a much broader class of permissible point array distributions: namely (1) the point arrangement (ordering) is topologically equivalent to a planar rectangular grid, (2) the resulting solution is a smooth composite of parametric surface segments, i.e. each surface piece is represented by a vector (point)-valued function. The solution here presented is readily applicable to a variety of problems, such as closed surface body definitions and pressure envelope surface definitions. The technique has been used successfully in these areas and others, such as numerical control milling, Newtonian impact and boundary layer.
230 citations
Authors
Showing all 76370 results
Name | H-index | Papers | Citations |
---|---|---|---|
Cornelia M. van Duijn | 183 | 1030 | 146009 |
Krzysztof Matyjaszewski | 169 | 1431 | 128585 |
Gary H. Glover | 129 | 486 | 77009 |
Mark E. Thompson | 128 | 527 | 77399 |
Ron Kikinis | 126 | 684 | 63398 |
James E. Rothman | 125 | 358 | 60655 |
Bo Wang | 119 | 2905 | 84863 |
Wei Lu | 111 | 1973 | 61911 |
Harold J. Vinegar | 108 | 379 | 30430 |
Peng Wang | 108 | 1672 | 54529 |
Hans-Joachim Freund | 106 | 962 | 46693 |
Carl R. Woese | 105 | 272 | 56448 |
William J. Koros | 104 | 550 | 38676 |
Thomas A. Lipo | 103 | 682 | 43110 |
Gene H. Golub | 100 | 342 | 57361 |