Failure Analysis of Engineering Structures: Methodology and Case Histories
Case 15: Failure of a Torque Sensor Bearing in an Aircraft Engine
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Published:2005
Abstract
Metal particles were frequently detected in the oil of an aircraft engine, triggering an investigation that led to a torque sensor and its mounting components. The sensor assembly was removed and examined in greater detail. As the chapter explains, investigators discovered that one of the bearings had been subjected to excessive friction, evidenced by brinelling, metal flow, heat tinting, deformation, and wear. They also observed extensive grooving on a retaining plate and several washers matching the diameter of the outer bearing races. Based on their findings, investigators concluded that excessive clearance allowed the outer bearing races to rotate, thus...
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Member Sign InFailure of a Torque Sensor Bearing in an Aircraft Engine, Failure Analysis of Engineering Structures: Methodology and Case Histories, By V. Ramachandran, A.C. Raghuram, R.V. Krishnan, S.K. Bhaumik, ASM International, 2005, p 97–99, https://doi.org/10.31399/asm.tb.faesmch.t51270097
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