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Accession Number ADA587076
Title Dynamics and Control of Mechanical Energy Propagation in Granular Systems.
Publication Date 2012
Media Count 45p
Personal Author S. Sen
Abstract The STIR project focused on a set of highly challenging problems to set the stage for future work at a deeper level. These problems are (1) to design a circuit system that simulates the transformation of an incident impulse into a solitary wave, (2) to study how the width of a solitary wave depends on the geometry of the grain-grain contacts, (3) how to make solitary waves in noisy environments, (4) to find what kind of physical situations precipitate large energy fluctuations in nonlinear systems and (5) how to model the presence of fluids in the inter-stitial space between grains in a 3D granular bed. All of these tasks have either been accomplished or have seen substantial progress during the period of this exploratory study. The report details the findings.
Keywords Circuits
Control
Dynamics
Fluids
Granular beds
Granular materials
Granular systems
Incident impulses
Mechanical energy
Nonlinear systems
Propagation
Quasi- equilibrium
Solitary waves
Transformations
Waves


 
Source Agency Non Paid ADAS
NTIS Subject Category 97O - Miscellaneous Energy Conversion & Storage
71M - Miscellaneous Materials
72E - Operations Research
46B - Fluid Mechanics
Corporate Author State Univ. of New York at Buffalo. Research Foundation.
Document Type Technical report
Title Note Final rept. 1 Sep 2011-31 May 2012.
NTIS Issue Number 1405
Contract Number W911NF-11-1-0437

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