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Abstract: Acoustic and dynamic measuring techniques are applied to
locate the area where squeal is present on a wear scar under
reciprocating sliding. SEM observations and 3 Dimension topography
measurements of wear scars are conducted. A comparative investigation on
characteristics of scar surfaces is carried out under both silent and
squealing conditions. The result shows that the area of a wear scar with
squeal is characterized by uneven and serious pit-like detachment of the
specimen material. Mechanism of generation of squeal is also discussed
based on the detachment of the material.
Key words: Squeal Friction-induced noise Surface topography
Reciprocating sliding
CLC No: TH117.12
国家自然科学基金资助项目(50075072).
Received 20010618, received in revised form 20011230
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