This application plots the response spectrum of accelerometer data recorded during the El Centro earthquake in 1940. A response spectrum is a plot of the maximum response of a system to differentfrequencies of input excitation.
Accelerometer time-history is first imported. These plots are then generated:
- acceleration time history
- absolute acceleration response spectrum
- relative velocity response spectrum
- relative displacement response spectrum
- pseudo velocity response spectrum
- pseudo acceleration response spectrum
- displacement time history
- velocity time history
- acceleration time history
The code uses the Newmark-beta method for numerically integrating the differential equation for a harmonic oscillator with a single degree of freedom.
