Dynamics and Control of Mechanical Energy Propagation in Granular Systems

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.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2012
Accession Number
ADA587076

Entities

People

  • Surajit Sen

Organizations

  • University at Buffalo

Tags

DTIC Thesaurus Topics

  • Acoustic Waves
  • Differential Equations
  • Dynamics
  • Energy
  • Energy Transfer
  • Equations
  • Equations Of Motion
  • Kinetic Energy
  • Materials
  • New York
  • Physics
  • Potential Energy
  • Scaling Laws
  • Simulations
  • Solitons
  • Steady State
  • Students

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Materials Science and Engineering.
  • Robotics and Automation.

Technology Areas

  • Space