Thermomechanical performance of CFRP synchronizer friction liners

• To improve the ability of a thermomechanical simulation model for CFRP lined synchronizers to predict synchronization performance and reliability, temperature dependent material data for the specific CFRP lining is needed. The compressive modulus, coefficient of thermal expansion, specific heat and thermal conductivity are determined experimentally. The effect of each material property on the focal surface temperature is analyzed, and it is shown that the compressive modulus has the largest influence for all analyzed load cases. Physical tests show that surface hot spots begin to appear at a simulated focal surface temperature of 200 °C, while performance degradation occurs at a simulated focal surface temperature of 230 °C-250 °C.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Tribologi (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Tribology (hsv//eng)

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