FAILURE ANALYSIS OF AIR HEATER GEAR TEETH OF A POWER PLANT

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MOUSAVI S.E.; HASELI Y.

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Seminar Paper

Paper Information

Seminar: INTERNATIONAL POWER SYSTEM CONFRENCE
Year:2004 | Issue:19

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Title

FAILURE ANALYSIS OF AIR HEATER GEAR TEETH OF A POWER PLANT

Author(s)

MOUSAVI S.E. | HASELI Y.

Keywords

GEAR

CRIPPLING

HARDNESS

TOOTH PROFILE

SURFACE FATIGUE

Abstract

AIR HEATER GEARS OF A POWER PLANT, MADE OF AISI 5135 STEEL, ARE GRADUALLY DAMAGED. THE FUNCTION OF THE GEAR, WHICH HAS 28 TOOTH, IS POWER TRANSMISSION TO THE AIR HEATER ROTOR WHICH CONTAINED 360 PIN ASSEMBLED AROUND IT. BECAUSE OF LOW SURFACE DURABILITY OF THE GEAR TOOTH, DAMAGE IS OCCURRED IN THE ABRASION AND CRIPPLING TYPE DUE TO MESHING OF TEETH AND PINS. THE MECHANICAL DESIGN OF THE GEAR TOOTH IS CHECKED ACCORDING TO THE BS AND AGMA STANDARDS. IT IS SEEN THAT THE HARDNESS AND DIMENSIONS (PROFILE) OF THE TOOTH ARE NOT PROPER FOR THE AVAILABLE ALTERNATIVE BEARING STRESSES. IN REGARDS OF ENGAGEMENT BETWEEN TEETH AND PINS, THE TOOTH PROFILE SHOULD BE SELECTED IN SPROCKET TYPE. HOWEVER, NO CORRESPONDING STANDARD IS USED FOR ITS DESIGN. THE RESEARCH RESULT SHOWS THAT INCREASING OF BOTH THE TOOTH SURFACE HARDNESS AND THE CASE DEPTH AND CORRECTING THE TOOTH PROFILE ARE NECESSARY TO IMPROVE THE ENDURANCE LIFE OF THE SPECIMEN. IN ADDITION, ADJUSTING OF THE GEAR SYSTEM IN CORRECT WAY IS SUGGESTED.

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APA: Copy

MOUSAVI, S.E., & HASELI, Y.. (2004). FAILURE ANALYSIS OF AIR HEATER GEAR TEETH OF A POWER PLANT. INTERNATIONAL POWER SYSTEM CONFRENCE. SID. https://sid.ir/paper/906557/en

Vancouver: Copy

MOUSAVI S.E., HASELI Y.. FAILURE ANALYSIS OF AIR HEATER GEAR TEETH OF A POWER PLANT. 2004. Available from: https://sid.ir/paper/906557/en

IEEE: Copy

S.E. MOUSAVI, and Y. HASELI, “FAILURE ANALYSIS OF AIR HEATER GEAR TEETH OF A POWER PLANT,” presented at the INTERNATIONAL POWER SYSTEM CONFRENCE. 2004, [Online]. Available: https://sid.ir/paper/906557/en

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