The Cassini Main Engine Assembly Cover Mechanism
This paper describes a micrometeroid protection system for the main engines of the Cassini Spacecraft.
Dual↗
Engineering topics
Sevilla, D. R.
Publications and source records attributed to Sevilla, D. R..
Oscillation Damper With Two Spring Rates
Hydraulic damping used in device developed to stabilize vibrating structure in space. Damping mechanism stops oscillation of attached boom. Two bellows provide fluid damping. Springs are engaged when extra spring force required. Otherwise they retract. Mechanism especially useful for arresting oscillatory motion of slender boom with large mass. On Earth, such configurations arise in design of masts and cranes.
Sevilla, D. R.↗
Nutation Damper System
The Nutation Damper System is a three function mechanism designed for the Galileo Spacecraft, a spin stabilized deep-space probe to Jupiter. By damping the movement of a large deployable science boom acting as an outboard pendulum, the nutation damper rapidly stabilizes the spacecraft from dynamic irregularities. The system includes the boom deployment device and the ultra-low friction boom hinge. This paper describes the mechanism, the degree to which friction, stiction and lost motion have been eliminated, and the unique test methods that allow its performance to be measured.
Sevilla, D. R.↗