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Vibration

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Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360043
EISBN: 978-1-62708-435-2
... Abstract This chapter focuses on the design of measuring devices. The devices used to measure vibration typically consist of an electronic transducer with an interconnecting cable and an alternating current voltmeter. The working principle of each type of transducer is described in this chapter...
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.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.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: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360127
EISBN: 978-1-62708-435-2
... Abstract Gearbox vibrations can often be dealt with in the field by modifying, replacing, and repositioning components and adjusting operating conditions and control parameters. Every gearbox design, however, eventually reaches a point where problems due to vibration are not so easily addressed...
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Published: 31 March 2024
Fig. 6.1 Vibration spectrum of gearbox with high vibration levels at 17 g . RMS, root mean square More
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360001
EISBN: 978-1-62708-435-2
... Abstract In the case of gearboxes, vibration is the primary mode of failure even at the mid-range of operating speeds. Avoiding such failures requires an understanding of gearbox design, vibration theory, and material properties. This chapter details sources and types of gearbox vibrations...
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...
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Published: 31 March 2024
Fig. 1.2 Pure harmonic (sinusoidal) vibration signal More
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Published: 31 March 2024
Fig. 1.4 Velocity and acceleration of the vibration are offset 90° and 180° in phase from displacement More
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Published: 31 March 2024
Fig. 1.15 Influence of tooth misalignment on noise/vibration More
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Published: 31 March 2024
Fig. 1.16 Bent/misaligned shaft with high axial vibration More
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Published: 31 March 2024
Fig. 1.20 Influence of profile error on noise/vibration More
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Published: 31 March 2024
Fig. 1.22 Noise/vibration influence based on (a) speed, (b) flank profile surface finish More
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Published: 31 March 2024
Fig. 1.38 Speed-reducer lateral vibration models; (a) pinion, (b) gear More
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Published: 31 March 2024
Fig. 2.1 Vibration-measuring transducers More
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Published: 31 March 2024
Fig. 2.5 Schematic of gearbox vibration measurement More
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Published: 31 March 2024
Fig. 2.6 Vibration severity levels for most vibrating devices, (a) displacement, (b) acceleration; cpm, cycles per minute More
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Published: 31 March 2024
Fig. 2.7 Nomograph for conversion of vibration measurements More
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Published: 31 March 2024
Fig. 3.1 Gearbox vibration viewed in the time and frequency domains More