Abstract: Aiming at the problems of difficult installation, low efficiency and low automation of equipment in the process of aircraft maintenance, this paper designs an aero-engine installation ...

Abstract: The truss deployable mechanism is widely used in large aperture space antennas. A modular truss deployable antenna mechanism based on a scissors hexagonal frustum unit is presented in this ...

Levers can help to lift heavy loads, as well as make things go up and down. Levers can be found in many everyday items. For example, a door handle, a pair of scissors, a can opener and even a ...