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gearbox design

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Published: 31 March 2024
Fig. 8.18 Gear teeth contact patterns with improved gearbox design 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
... 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...
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...
Image
Published: 31 March 2024
Fig. 5.16 Current design of gearbox output shaft bearing More
Image
Published: 31 March 2024
Fig. 5.17 New design of gearbox output shaft bearing with a pressure dam More
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.t59360083
EISBN: 978-1-62708-435-2
... the lowest of the three calculated values Critical Speed and Peak Load To further limit vibration, gearbox designers should ensure that there are no flexural critical speeds or bearing instability at any of the gearbox operating speeds. Likewise, gear teeth should be designed to sustain a momentary...
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...
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.9781627084352
EISBN: 978-1-62708-435-2
Image
Published: 31 March 2024
Fig. 8.3 Star gearboxes with Stoeckicht and alternate designs More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320185
EISBN: 978-1-62708-347-8
... methods, case hardening certainly offers a number of advantages over the through-hardening processes. Case-hardened gears have high fatigue life. Gearboxes designed with such gears are about 15 to 20% smaller in size (volume) than those with through-hardened gears. Again, of the various case-hardening...
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
... 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...
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
.... The general characteristics of the gearbox are: Horsepower rating: 16,500 hp Input speed: 8,625 rpm Output speed: 1,500 rpm The sun pinion and planet gears are nitrided, whereas the ring gear is just through-hardened. The design life of the gears is a minimum of 100,000 h. Failure...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360051
EISBN: 978-1-62708-435-2
... level not to exceed 90 dB The gearbox was designed with two stages of speed reduction: 2.30 in the first stage and 3.94 in the second. A computer program based on AGMA design principles was used. The general arrangement of the gearbox is shown in Fig. 3.9 . For high efficiency and low vibration...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250019
EISBN: 978-1-62708-345-4
... Abstract This chapter reviews the knowledge of the field of gear tribology and is intended for both gear designers and gear operators. Gear tooth failure modes are discussed with emphasis on lubrication-related failures. The chapter is concerned with gear tooth failures that are influenced...
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
..., whereas the ring gear is just through-hardened. The design life of the gears is a minimum of 100,000 h. Failure Incident According to a field representative, gearbox failure occurred after 3 h of operation following a scheduled online turbine water wash cycle. In general, all turbines go through...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250257
EISBN: 978-1-62708-345-4
... occurs and progresses in the area designed to receive the maximum bending stress. Figure 1 shows such an example. There are five conditions that make Fig. 1 a perfect tooth-bending fatigue failure: The origin is at the surface of the root radius of the loaded (concave) side of the tooth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460227
EISBN: 978-1-62708-285-3
... temperatures greater than 500 °C (930 °F). Almost all of the high-pressure systems are designed to be used with a stationary robot. These systems typically have spray guns (nozzles and prechamber) that are too heavy to be held by hand. The maximum operating pressure for an HPCS system is 6.9 MPa (1000 psi...