1965-02-01

Design of a Hydraulic Gimbal System for a Moon Mission Booster Stage 650306

This paper discusses the mechanical, hydraulic, and heat transfer aspects of designing a hydraulic system to gimbal the engine on the Saturn S-IVB Booster Stage. This stage requires restart capability after a moderate period of orbital coast.
The design configuration which satisfies the overall functional and environmental requirements is shown. Specific areas of discussion include:
  1. 1.
    Design of a hydraulic pump assembly which must be mounted on an accessory pad which may be as cold as -297°F before pump operation and subjects the pump installation to thermal shock (-297°F to +900°F) during operation.
  2. 2.
    Design of an electric motor driven hydraulic pump for operation in the vacuum of space.
The results of certain laboratory tests which have been conducted pursuant to the development of the system are discussed.

CREDIT

Phases of work presented herein were accomplished by the Missile and Space Systems Division under the Saturn IVB program sponsored by the National Aeronautics and Space Administration.

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