Dynamic Analysis of an Optical Laser Platform
Abstract
Optical beam pointing is a critical topic in the study of Directed Energy Weapons Systems. One of the main operational concerns with optical beam pointing is the effect of small vibratory motion, defined as jitter. Understanding jitter is important for minimizing the effect it has upon a directed energy beam s intensity at its target. In this project, Lagrange s equations of motion are derived for a visco-elastic, point-supported plate containing discrete masses, which is representative of an optical platform. The mechanical response of the optical platform is sought for free vibration, impact loading and the response imparted by two inertial actuators. All three of these responses are then analyzed with and without damping. A solution of these equations contains information pertaining to the plate s amplitude and frequency, analyzed in both time and frequency domains, which together computes the effect of jitter on the intensity of a directed energy beam at the target.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 10, 2010
- Accession Number
- ADA548783
Entities
People
- Angela M. Roush
Organizations
- United States Naval Academy