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SMART OFFICE
SMART OFFICE
MOTOR ROTOR SLEEVE
A carbon fiber composite rotor sleeve technology designed to replace heavy metal EV motor components, eliminate eddy current losses, and reduce manufacturing cost.
OVERVIEW & KEY CAPABILITIES
TOPU’s Carbon Fiber Composite program uses Altair OptiStruct CAE analysis to optimize laminate angles and rotor sleeve construction under extreme centrifugal forces.
Combining autoclave prepreg fabrication with liquid nitrogen cold-shrink assembly, the process delivers high-precision motor components that lower structural stress at top speeds.
INDUSTRY VALUE & IMPACT
Designed to replace heavy metal motor sleeves in electric vehicles (EVs), carbon fiber composites drastically cut rotor weight while eliminating eddy current losses. Validated through digital CAE simulations, the process uses a low-cost liquid nitrogen assembly instead of heavy winding machinery to shorten development and reduce prototyping expenses.
VALIDATION & EMPIRICAL RESULTS
Partnering with CPC Corporation, Taiwan, TOPU successfully established in-house capability for developing carbon fiber composite motor rotors for automotive applications. The prototype successfully underwent dynamic testing on an operational rig, demonstrating structural integrity with zero detachment or damage while running
under a high-speed load of 15,705 rpm.
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