Full Content is available to subscribers

Subscribe/Learn More  >

Model-Based Optimization of Coupled Thermo-Electro-Magneto-Mechanical Behavior of Load-Bearing Antennas

[+] Author Affiliations
Sushma Santapuri, Stephen E. Bechtel

The Ohio State University, Columbus, OH

Paper No. IMECE2010-38786, pp. 507-517; 11 pages
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4446-5
  • Copyright © 2010 by ASME


Load-bearing antennas are multi-functional sensing (actuating) and receiving (detecting) devices that are integrated with a load-bearing structure. These antennas are appealing for military applications, importantly Unmanned Aerial Vehicles (UAV). The antenna structure is subjected to mechanical forces, temperature gradients, and electromagnetic fields, giving rise to highly-coupled nonlinear thermo-electro-magneto-mechanical (TEMM) behavior. In the present work, we have developed analytical techniques and computational tools for multi-scale, multi-physics modeling of composite load-bearing antennas, specific to UAV applications. Our mathematical model, based predominantly on first principles, employs the thermomechanical governing equations (i.e., conservation of mass, momentum, angular momentum, energy and second law of thermodynamics) coupled with Maxwells equations. The macro-scale coupling terms that characterize the thermo-mechanical and electromagnetic interactions are deduced from micro-scale behavior. Our modeling has identified 92 nondimensional numbers which quantify the competition between physical effects in the operation of load-bearing antenna. Depending on the design of the structure and nature of the excitation, only a subset of physical effects are dominant, which dictates the appropriate computational model. A fixed relative ordering of all competing effects as quantified by nondimensional numbers, determines a regime of antenna/environment interaction. The mathematical structure of leading-order equations for various physical regimes is presented for use in the optimization and analysis of coupled TEMM behavior of load-bearing antennas.

Copyright © 2010 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In