Title :
Antenna Mechanic-computation of antenna vibration mode elastic-rigid and effective-weight coefficients
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
6/1/1992 12:00:00 AM
Abstract :
A significant amount of both qualitative and quantitative information about structures can be derived from the elastic-rigid structural coupling matrices and from the effective model inertias and masses. An easy way to develop this information from the output of finite-element programs is described. It is shown how to deal with alternative origins for the reference coordinate system. Hand calculations suffice for these computations.<>
Keywords :
antenna theory; finite element analysis; matrix algebra; vibrations; antenna vibration mode; elastic-rigid structural coupling matrices; finite-element programs; inertias; masses; reference coordinate system; weight coefficients; Analytical models; Computational modeling; Finite element methods; Information analysis; Oscillators; Performance analysis; Rotors; Springs; Symmetric matrices; Vibrations;
Journal_Title :
Antennas and Propagation Magazine, IEEE
