1-13 of 13 Search Results for

Turbogenerators

Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360091
EISBN: 978-1-62708-435-2
... Abstract Gearbox vibrations are classified as synchronous or nonsynchronous depending on whether or not they are related to the rotational speed of an internal or connected component. This chapter presents a turbogenerator case study that demonstrates the source of nonsynchronous vibration...
Image
Published: 31 March 2024
Fig. 3.15 Typical turbogenerator set More
Image
Published: 31 March 2024
Fig. 5.1 Photograph of a turbogenerator package More
Image
Published: 31 March 2024
Fig. 5.2 (a) Turbogenerator test setup and mass-elastic data. (b) Locations of various vibration pickups More
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360127
EISBN: 978-1-62708-435-2
... usually do their work in the turbocompressor. In many turbogenerator packages, turbine speed is reduced to the desired generator speed with an epicyclic speed reducer. Medium-range (5000 to 25,000 hp) gas turbines operate at speeds from 8000 to 20,000 revolutions per minute (rpm) which, in the case...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360051
EISBN: 978-1-62708-435-2
... The mechanism by which low-frequency vibrations arise due to index variation form error on ring gears in high-speed epicyclic gearboxes is not well understood. To determine the effect of such errors on gearbox vibrations, a study was conducted during package testing of a turbogenerator set. Tooth Index Form...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360107
EISBN: 978-1-62708-435-2
... that the turbogenerator was shut down due to high vibration levels in the gearbox, although no vibration data were available. An investigation was conducted following the incident that ruled out misalignment of equipment as the cause of failure. In addition, no visible damage was found on any external component...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270025
EISBN: 978-1-62708-301-0
... the microfractography described later in this chapter. In a turbogenerator, the turbine was coupled to the gear box by a set of bolts and nuts. In addition, the nuts were also welded to the bolts. One of the nuts failed and the turbine was separated from the gear box, resulting in a catastrophe. Macroscopic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320133
EISBN: 978-1-62708-347-8
... in a very short time period is relatively unknown. Although, such load spectrums are not very common, sometimes these are observed in gas turbogenerator applications. An analysis of a gas turbogenerator load during startup shows that load fluctuations occur whenever the fuel-control system malfunctions...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250227
EISBN: 978-1-62708-345-4
... loads. However, that the life of nitrided gears may also deteriorate when subjected to a rated load that varies widely in a very short time period is relatively unknown. Although, such load spectrums are not very common, sometimes these are observed in gas turbogenerator applications. An analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490265
EISBN: 978-1-62708-340-9
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490111
EISBN: 978-1-62708-340-9
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870001
EISBN: 978-1-62708-299-0