Journal
AMERICAN JOURNAL OF PHYSICS
Volume 80, Issue 1, Pages 19-23Publisher
AMER ASSOC PHYSICS TEACHERS AMER INST PHYSICS
DOI: 10.1119/1.3633700
Keywords
biomimetics; drag; elasticity; physics education; student experiments; translational states; vibrational states
Funding
- National Research Foundation of Korea [2009-0082824, 2010-0029613]
Ask authors/readers for more resources
We investigate the dynamics of an elastic hoop as a model of the jumps of small insects. During a jump the initial elastic strain energy is converted to translational, gravitational, and vibrational energy, and is dissipated by interaction with the floor and the ambient air. We show that the strain energy is initially divided into translational, vibrational, and dissipation energies with a ratio that is constant regardless of the dimension, initial deflection, and the properties of a hoop. This novel result enables us to accurately predict the maximum jump height of a hoop with known initial conditions and drag coefficient without resorting to a numerical computation. Our model reduces the optimization of the hoop geometry for maximizing the jump height to a simple algebraic problem. (C) 2012 American Association of Physics Teachers. [DOI: 10.1119/1.3633700]
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available