The analysis revealed that due to pier-to-deck joint stiffness and the nonlinear coupling between the rotational and translational degrees of freedom at the foundation, the loading at the caisson head follows a nonlinear path characterized by the mobilization of a specific failure mechanism (identified as the "inverted" pendulum failure mode), triggered by the "negative effective height" effect.
The parameter study is performed by considering the effects of an effective height between the steam generator and the heat exchanger, a hydraulic resistance, an initial pressure, a non-condensable gas fraction in the compensating tank, and a valve actuation time, which are useful for the design of the passive residual heat removal system.
The intensity of P-Δ effects is represented by a new index, termed the effective height, heff.
The effect of surface roughness has been included in the model using the effective height and density of the surface roughness distribution.
This effective height is also found to rise with increasing superficial gas velocity.
The associated effective height operator converts incident electric fields to voltage waveforms at the LDPA terminals.
A noise barrier (limiting its maximum effective height) is situated between both.
The actual stress distribution is converted to an equivalent mean stress and an associated effective height.
The first equation allows to estimate the frame's yield displacement based only on its effective height.
Moreover, commonly-used effective height factors from elastic stability theory can lead to overestimation of critical axial loads.
The effective height versus time and incident angle was measured, along with the associated response of the ARIANNA RF amplifier.
