Application of FRP Bolt to Maglev Ground Coil
Naoki AIHARA, Takao YOSHIKAWA, Naoto MIFUNE
For the maglev railroad guideway, propulsion and levitaiton coils are set
on by fastening bolts. Their materials should be non-magnetic to avoild
any effects of magnetism. So we tried to make use of FRP bolts made of GFRP,
CFRP and Al-Alumina MMC. We measured their mechanical strengths, relaxation
of axial force after tightening and torque coefficient to evaluate
applicability of FRP bolts on the railway.