TY JOUR TI PROMISING PARKING BRAKE DEVELOPMENT FOR LOCOMOTIVES KW propulsion electric motor KW wheel pair KW pneumatic actuator KW axlebox KW piston KW splined bushes KW parking brake JO Bulletin of Bryansk state technical university AU Slivinskiy, E.V. AU Kiselev , V.. PY 2016 IS 2016 PB Bryansk State Technical University