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Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.9781627084352
EISBN: 978-1-62708-435-2
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360145
EISBN: 978-1-62708-435-2
... Abstract This appendix provides a list of books and technical papers utilized as reference material during the development of this book. gearbox design gearboxes vibration analysis vibration reduction Books Books • Dudley D.W. , Gear Handbook , McGraw-Hill Book...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360043
EISBN: 978-1-62708-435-2
... along with their important characteristics and common applications. The chapter provides general guidelines for the selection of a measuring device, and discusses vibration severity levels. gearboxes transducers vibration analysis vibration nomograph Amplitudes of Vibration Vibration...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360001
EISBN: 978-1-62708-435-2
...; characteristics of gearbox vibrations; fundamentals of periodic vibrations; and vibration theory. It provides housing design for single-stage offset parallel gearboxes, high-speed gearboxes, and epicyclic gearboxes. The chapter then provides an analysis and selection of design factors for vibration reduction...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360083
EISBN: 978-1-62708-435-2
... Abstract This chapter details the vibration limits for gearboxes. It focuses on critical speed and peak load. The chapter presents vibration measurement and analysis, which provides a quick and relatively inexpensive way to detect and identify mechanical problems before they become more serious...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360107
EISBN: 978-1-62708-435-2
... gearbox; failure of an epicyclic gearbox; and vibration due to tooth wear. failure analysis gear tooth geometry error gear tooth wear gearboxes vibration reduction GEARBOXES, no matter how well designed and built, can and do fail for various of reasons. The majority of failures occur due...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360091
EISBN: 978-1-62708-435-2
.... It then provides a detailed discussion on spiking vibrations and presents design improvement and reduction of spiking vibrations. gearbox design gearboxes turbogenerators vibration analysis GEARBOX VIBRATIONS are classified as synchronous or nonsynchronous depending on whether...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360051
EISBN: 978-1-62708-435-2
... Abstract The cyclic nature of gearbox vibration lends itself well to the analysis in the frequency domain where the effects of a gear mesh, bearing defects, and other sources of vibration are effectively set apart, making it much easier to identify and correct the underlying causes of vibration...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360127
EISBN: 978-1-62708-435-2
... shaft Fig. 8.13 Dynamic lift of ring gear and outer coupling, splined Analysis of Vibration Records The minimum power needed to lift the geometric axes of the ring gear and coupling was 338 hp at 1500 rpm, which is significantly lower than the power during the performance test...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360121
EISBN: 978-1-62708-435-2
... Abstract This chapter presents guidelines for reducing gearbox vibration, with an emphasis on design factors that play major roles in influencing vibration. gearbox design gearboxes vibration reduction A GREAT DEAL OF DISCUSSION has been presented in previous chapters on the design...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250257
EISBN: 978-1-62708-345-4
... Abstract Gears can fail in many different ways, and except for an increase in noise level and vibration, there is often no indication of difficulty until total failure occurs. This chapter begins with the classification of gear failure modes, followed by sections discussing the characteristics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270113
EISBN: 978-1-62708-301-0
... cadmium plating. To avoid vibration, instead of welding, alternative arrangements may be considered. Failure Analysis of Engineering Structures: Methodology and Case Histories Copyright © 2005 ASM International® V. Ramachandran, A.C. Raghuram, R.V. Krishnan, and S.K. Bhaumik, p113-114 All rights...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270197
EISBN: 978-1-62708-301-0
... Abstract One of the rotor bearings in an electric motor failed, producing excessive vibrate. The bearing was removed and disassembled, revealing craters and bruises on the inner ring raceway and balls along with evidence of melting and burning of metal. Scanning electron microscopy revealed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270182
EISBN: 978-1-62708-301-0
... to vibration of the blade, which failed at the outer the tenon should match. hole by fatigue. D C B A E FG (a) (b) Fig. CH50.1 (a) Root portion of the failed blade, C; neighboring blades, A, B, D, E; blades diametrically opposite, F, G. (b) Sketch showing the location of blades 184 / Failure Analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110001
EISBN: 978-1-62708-247-1
... is to use laser source with a high power, at least 1 watt (output from source). Image Quality Test head cooling mechanism is another factor that can impact the quality of wafer-level FI analysis. Vibrations are induced as a result of the cooling process and couples into the SOM system. In general...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270107
EISBN: 978-1-62708-301-0
... Abstract A helicopter lost the outboard rib on a tail rotor blade in flight and was forced to land because of the resulting vibrations. The investigation that followed is described in this chapter along with key findings. As shown in a sketch, the rib is held in place by a set of six rivets...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780141
EISBN: 978-1-62708-268-6
... Abstract Contaminants can be a cause of numerous types of system failures. There are numerous techniques for confirming contaminant presence. When the presence of a contaminant is suspected, the failure analysis team must find and eliminate the contaminant source, which can be obvious or quite...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430325
EISBN: 978-1-62708-253-2
... tube fatigue, including mechanical or vibrational fatigue, corrosion fatigue, thermal fatigue, and creep-fatigue interaction. It discusses the causes, characteristics, and impacts of each type and provides several case studies. boiler tubes corrosion fatigue creep-fatigue interaction fatigue...
Image
Published: 31 March 2024
Fig. 1.1 Illustration of different axes of gear shafts, (a) parallel, (b) intersecting, (c) nonparallel, nonintersecting (skew) More
Image
Published: 31 March 2024
Fig. 1.2 Pure harmonic (sinusoidal) vibration signal More