Mazzone, Giusy
(2016)
On the Dynamics of a Rigid Body with Cavities Completely Filled by a Viscous Liquid.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
Abstract
This thesis deals with the dynamics of a coupled system comprised of a rigid body containing one or more cavities entirely filled with a viscous liquid. We will present a rigorous mathematical analysis of the motions about a fixed point of this system, with special regard to their asymptotic behavior in time.
In the case of inertial motions and motions under the action of gravity, we will show that viscous liquids have a stabilizing effect on the motion of the solid. The long-time behavior of the coupled is characterized by a rigid body motion, and in particular a permanent rotation in the case of inertial motions, and the rest state in the case of a liquid-filled heavy pendulum. Some questions about the attainability and stability of the equilibrium configurations are also answered.
Furthermore, we will investigate the time-periodic motions performed by the coupled system liquid-filled rigid body when a time-periodic torque is applied on the solid.
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Details
Item Type: |
University of Pittsburgh ETD
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Status: |
Unpublished |
Creators/Authors: |
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ETD Committee: |
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Date: |
15 June 2016 |
Date Type: |
Publication |
Defense Date: |
24 March 2016 |
Approval Date: |
15 June 2016 |
Submission Date: |
18 March 2016 |
Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
Number of Pages: |
122 |
Institution: |
University of Pittsburgh |
Schools and Programs: |
Swanson School of Engineering > Mechanical Engineering and Materials Science |
Degree: |
PhD - Doctor of Philosophy |
Thesis Type: |
Doctoral Dissertation |
Refereed: |
Yes |
Uncontrolled Keywords: |
Liquid-filled cavity, Navier-Stokes equations, rigid body, inertial motions, pendulum, attainability, stability, periodic motions. |
Date Deposited: |
15 Jun 2016 19:49 |
Last Modified: |
15 Nov 2016 14:32 |
URI: |
http://d-scholarship.pitt.edu/id/eprint/27265 |
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