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Research Papers

Self-Powered Dynamic Systems in the Framework of Optimal Uncertainty Quantification

[+] Author and Article Information
Farbod Khoshnoud

Mem. ASME
Department of Mechanical,
Aerospace and Civil Engineering,
Brunel University London,
Uxbridge UB8 3PH, UK;
Department of Mechanical Engineering,
Lyles College of Engineering,
California State University,
2320 East San Ramon Avenue,
Fresno, CA 93740-8030
e-mails: kfarbod@csufresno.edu; farbodkhf@yahoo.com

Ibrahim I. Esat

Department of Mechanical,
Aerospace and Civil Engineering,
Brunel University London,
Uxbridge UB8 3PH, UK
e-mail: Ibrahim.Esat@brunel.ac.uk

Clarence W. de Silva

Fellow ASME
Department of Mechanical Engineering,
The University of British Columbia,
Vancouver, BC V6T 1Z4, Canada
e-mail: desilva@mech.ubc.ca

Michael M. McKerns

Department of Computing
and Mathematical Sciences,
California Institute of Technology,
1200 East California Boulevard,
Pasadena, CA 91125
e-mail: mmckerns@caltech.edu

Houman Owhadi

Department of Computing
and Mathematical Sciences,
California Institute of Technology,
1200 East California Boulevard,
Pasadena, CA 91125
e-mail: owhadi@caltech.edu

Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received March 8, 2016; final manuscript received March 7, 2017; published online June 5, 2017. Assoc. Editor: Yang Shi.

J. Dyn. Sys., Meas., Control 139(9), 091005 (Jun 05, 2017) (13 pages) Paper No: DS-16-1130; doi: 10.1115/1.4036367 History: Received March 08, 2016; Revised March 07, 2017

The energy that is needed for operating a self-powered device is provided by the energy excess in the system in the form of kinetic energy, or a combination of regenerative and renewable energy. This paper addresses the energy exchange issues pertaining to regenerative and renewable energy in the development of a self-powered dynamic system. A rigorous framework that explores the supply and demand of energy for self-powered systems is developed, which considers uncertainties and optimal bounds, in the context of optimal uncertainty quantification. Examples of regenerative and solar-powered systems are given, and the analysis of self-powered feedback control for developing a fully self-powered dynamic system is discussed.

Copyright © 2017 by ASME
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References

Figures

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Fig. 1

A regenerative multibody dynamic system with motors and generators and energy inputs

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Fig. 2

Examples of self-powered dynamic systems: (a) a regenerative electromechanical system, (b) a schematic of the regenerative system, (c) a solar-powered aerial vehicle, and (d) a free-body diagram of the airship

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Fig. 3

A schematic for a self-powered dynamic system with renewable energy input and a regenerative system

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Fig. 4

A self-powered dynamic system with renewable energy input and regenerative actuation

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Fig. 5

I–V and P–V curves for a PV cell

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Fig. 6

Nondimensional power, Pdγ, γ=a/b

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Fig. 7

Nondimensional power, Pdγ, versus σ and γ

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Fig. 8

Nondimensional power, Pdλ, λ=b/a

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Fig. 9

Nondimensional power, Pdλ, versus σ and λ

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Fig. 10

(a) Relative displacement, (b) actuator force, (c) power produced by the generator, (d)power consumed by the actuator, (e) resistor power loss, and (f) available net power

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Fig. 11

Displacement of the system for three different control parameter sets and the corresponding control force

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Fig. 12

(a) Generator power and consumed actuator power for different controller parameter sets and (b) total available net power for different controller parameter sets

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Fig. 13

(a) Relative displacement, (b) actuator force, (c) power produced by the generator, (d) power consumed by the actuator, (e) resistor power loss, and (f) available net power

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Fig. 14

Displacement of the system with different control parameter sets and the corresponding control force

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Fig. 15

(a) Generator power and the consumed actuator power with different controller parameter sets and (b) total available net power with different controller parameter sets

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Fig. 16

(a) Relative displacement, (b) actuator force, (c) power produced by the generator, (d) power consumed by the actuator, (e) resistor power loss, and (f) available net power

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Fig. 17

Displacement of the system for three different control parameter sets and the corresponding control force

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Fig. 18

(a) Generator power and consumed actuator power for different controller parameter sets and (b) total available net power for different controller parameter sets

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