Keyword: «roll»

COMPENSATION OF ROLL OF FLOATING RAILWAY BRIDGE AT HIGH RIVER FLOW RATES

Author:

Sergei Zavalnuk

The article describes the causes of the roll of floating railway bridges, as well as the need for its compliance with the regulatory requirements of railway transport. Constructive (technical) solutions for floating railway bridges are given, which reduce the amount of roll and increase the safety of passing trains at high speed of the river flow.

Keywords: stability, trim, pontoon, floating railway bridge nzhm-56, river part of the floating bridge, unified floating railway bridge-tape mlj-vf-vt, river flow, pontoon section, roll, rail elevation

AERODYNAMIC ANALYSIS OF HELICOPTER BEHAVIOR AND ACTIONS THE PILOT IN CASE OF FAILURE OF THE WAYSIDE CONTROL DURING FLIGHTS IN THE DANGER ZONE, SPEED IS ALTITUDE

Authors:

Sergei Petrovskii,

Roman Gorunov

This article examines the behavior of a helicopter, the peculiarities of the psychology of flight personnel and actions in case of failure in the speed-altitude danger zone.

Keywords: pitch, roll, power plant, transmission, tail rotor, spontaneous left rotation