Search results
Results from the WOW.Com Content Network
The J-2, commonly known as Rocketdyne J-2, was a liquid-fuel cryogenic rocket engine used on NASA's Saturn IB and Saturn V launch vehicles. Built in the United States by Rocketdyne, the J-2 burned cryogenic liquid hydrogen (LH 2) and liquid oxygen (LOX) propellants, with each engine producing 1,033.1 kN (232,250 lb f) of thrust in vacuum.
Gimbal lock is the loss of one degree of freedom in a multi-dimensional mechanism at certain alignments of the axes. In a three-dimensional three-gimbal mechanism, gimbal lock occurs when the axes of two of the gimbals are driven into a parallel configuration, "locking" the system into rotation in a degenerate two-dimensional space.
Gimbaled thrust for different gimbal angles Animation of the motion of a rocket as the nozzle is gimbaled Gimbaled thrust is the system of thrust vectoring used in most rockets , including the Space Shuttle , the Saturn V lunar rockets, and the Falcon 9 .
For premium support please call: 800-290-4726 more ways to reach us
However, the torque generated by one gimbal's motion must often be reacted by the other gimbal on its way to the spacecraft, requiring more power for a given torque than a single-gimbal CMG. If the goal is simply to store angular momentum in a mass-efficient way, as in the case of the International Space Station , dual-gimbal CMGs are a good ...
Illustration of a simple three-axis gimbal set; the center ring can be vertically fixed. A gimbal is a pivoted support that permits rotation of an object about an axis. A set of three gimbals, one mounted on the other with orthogonal pivot axes, may be used to allow an object mounted on the innermost gimbal to remain independent of the rotation of its support (e.g. vertical in the first ...
Normally, the anchoring consists of round anchors on spherical bearings. If high axial compressive forces occur, flat tie rods with pin or universal joints are used. The magnitude of the lateral movement increases with the bending angle of both metal bellows and with the length of the intermediate pipe.
The trunnions are the protrusions from the side of the barrel that rest on the carriage. A trunnion (from Old French trognon 'trunk') [1] is a cylindrical protrusion used as a mounting or pivoting point.