Shaping of Rollable, Singly Curved, Parabolic Shell Reflectors

Tan Huifeng; Yang Liuyi; Lin Guochang; Shen Yongzheng

doi:10.2514/1.a33511

Shaping of Rollable, Singly Curved, Parabolic Shell Reflectors

Journal of Spacecraft and Rockets ◽

10.2514/1.a33511 ◽

2016 ◽

Vol 53 (3) ◽

pp. 494-499 ◽

Cited By ~ 1

Author(s):

Tan Huifeng ◽

Yang Liuyi ◽

Lin Guochang ◽

Shen Yongzheng

Keyword(s):

Parabolic Shell

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Stress-strain state of a parabolic shell of revolution subjected to external magnetic pressure

Journal of Applied Mechanics and Technical Physics ◽

10.1007/bf00852231 ◽

1975 ◽

Vol 15 (3) ◽

pp. 392-399 ◽

Cited By ~ 1

Author(s):

D. G. Baratov ◽

V. M. Valov ◽

R. A. Pzaev ◽

V. L. Rykov ◽

I. M. Shalashov

Keyword(s):

Strain State ◽

Magnetic Pressure ◽

Shell Of Revolution ◽

Stress Strain ◽

Stress Strain State ◽

Parabolic Shell

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Wireless Control of Parabolic Shells Using Photostrictive Actuators

Dynamic Systems and Control, Parts A and B ◽

10.1115/imece2006-13064 ◽

2006 ◽

Cited By ~ 2

Author(s):

Hui-Ru Shih ◽

Horn-Sen Tzou

Keyword(s):

Shell Model ◽

Active Control ◽

Mechanical Energy ◽

Flexible Structures ◽

Approximate Model ◽

Control Action ◽

Shells Of Revolution ◽

Parabolic Shell ◽

Control Forces ◽

Photostrictive Actuators

Photostrictive actuator, which can turn light energy into mechanical energy, is a new promising photoactuation technique for non-contact wireless active control of flexible structures. Optical mirrors, communication antennas, solar/optical reflectors, nozzles, rocket fairings, etc. often have the shape of parabolic shells or shells of revolution, due to their required focusing, aiming, or reflecting performance. In this paper, the active control of flexible parabolic shells using discrete photostrictive actuators is investigated. Parabolic shell of revolution is considered one of the most difficult geometry among all shell and non-shell structures. Because of this, an approximate way to estimate the dynamic behavior and light-induced control forces of a photostrictive coupled parabolic shell is presented. Based on the approximate model, the effects of actuator locations as well as membrane and bending components on the control action are analyzed. The results obtained indicate that the control forces are mode and location dependent. It is also shown by analysis that the membrane control action is much more significant than the bending control action. The validation of the approximate model is done by comparing the light-induced control forces of the photostrictive coupled shells obtained by the approximate equivalent spherical shell model and those obtained by the parabolic shell model.

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