Calculation of a Shock Response Spectra

Abstract

As it is stated in the ISO 18431-4 Standard, a Shock Response Spectrum is defined as the response to a given accelerationacting at a set of mass-damper-spring oscillators, which are adjusted to the different resonance frequencies while their resonancegains (Q-factor) are equal to the same value. The maximum of the absolute value of the calculated responses as a function of theresonance frequencies compose the shock response spectrum (SRS). The paper will deal with employing Signal Analyzer, the softwarefor signal processing, for calculation of the SRS. The theory is illustrated by examples.

Keywords

• Shock response spectrum
• shock
• single degree of freedom system
• measurements
• ramp invariant method