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Previous works have shown a linear anode spot formation threshold current (I\(_{\rm th}\) ) dependence on the critical axial magnetic field (AMF), \({\textit {B}}^{\rm crit}_{\rm AMF}\) , in a vacuum under applied AMFs of up to \(\sim 110\) mT. However, the effects of the contact design parameters (e.g., contact diameter, contact gap, and contact material) on this dependence have not yet been...
This paper studies the vibration control of jacket-type offshore platforms. A feedforward and feedback optimal controller (FFOC) is developed. The FFOC is proved to be existent and unique. In the design of FFOC, we consider the irregular wave and current forces, and the displacement and velocity of structure. The feasibility and effectiveness of the presented control law is demonstrated by a numerical...
The vibration optimal control with exponential decay rate problem of the offshore jacket platform is studied. An optimal vibration controller is designed for the system affected by the wave load expressed as disturbances produced by exosystems. Numerical simulations illustrate the effectiveness of the proposed controller.
In this paper, we will discuss two methods to tackle the low-frequency, multi-scale electromagnetics problem. First we will discuss the augmented electric field integral equation (AEFIE), and then, we will discuss the equivalence principle algorithm (EPA). The AEFIE allows the solution of such problems without the need to perform a loop search of a complex structure. The EPA allows the separation...
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