Vibrational Dynamics of Rocket-Powered Vehicle in High-Speed Monorail Tests of Aircraft Components

Track tests of ballistic aircraft in flight conditions are used to confirm their viability. A problem with track tests is vibration of the shoes in nonsteady slip along the rails. The monorail track at the Safronov State Government Testing Center for Aviation Systems has gaps between the track beams to allow for their expansion and contraction at different times of the year. In the acceleration of a test vehicle using the thrust of solid fuel rocket engines, parametric vibration appears. Its source is the dynamic interaction between the contact surface of the shoes and the upper surface of the monorail at the junction between sections. The dynamic vibrational stability of the moving test vehicle is studied in high-speed monorail tests.