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Response Spectrum Analysis

Overview

Response Spectrum Analysis is a technique to compute a structure’s response to transient excitations that contain many frequencies. A spectrum is a representation of a load’s time history in the frequency domain. It is an alternative to Transient Response analysis. 

Result Types

Spectrum analysis follows a modal analysis, and computes the maximum response of the structure to a given spectrum at each natural frequency. This maximum response is computed as a scale factor*mode shape. These maximum responses are then combined to give a total response of the structure.

Application Examples

Response Spectrum analysis is used in the design of:

  • Nuclear power plants (buildings and components)
  • Airborne Electronic equipment (aircraft / missile)
  • Spacecraft components
  • Aircraft components
  • Any structure or component that is subjected to seismic or other erratic loads
  • Building frames and bridges


 


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2017-09-25
Enhancements in NFX 2018R1
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