The ability to compute the FDS in both the time and frequency domain and get equivalent results is the crux of the method of Fatigue Damage Equivalent vibration Testing (FDET). In this …

The fatigue damage spectrum shows the damage done to the object under test by a particular signal frequency. If PSD is the distribution of energy by frequencies, FDS is the distribution of …

Using Kurtosion® with FDS to Accelerate a Test • Original Fatigue Damage Import assumes Gaussian distribution. Converting the FDS back to a PSD (through Henderson‐Piersol …

2016年6月1日 · A common mistake is to confuse dielectric frequency response (DFR) and frequency response of stray losses (FRSL) tests with sweep frequency response analysis …

The FDS has dimensions of: relative damage index vs. natural frequency. This comparison method is demonstrated via an actual case history in this paper. Method Outline

2024年5月16日 · In the calculation of the Fatigue Damage Spectrum (FDS), damping is typically held constant at a predetermined value, often around 5%, although the user does have the …

2020年12月11日 · The fatigue damage spectrum (FDS) is a test development tool that replicates the operational environment of a product. It is used to create an accelerated random test using …

A rainflow cycle count can be performed for each SDOF response for each natural frequency fn and amplification factor Q of interest. The fatigue damage spectrum (FDS) is calculated from …

When combining data, the same m, Q, and frequency range are used to create an equal relationship between each imported file. The output PSD will be the damage equivalent of all …

Comparative experimental results show that iFDS is a superior method for saving time and accurate testing and has the potential to be versatile for evaluating more insulation objects. …