In this paper we present an approach to adaptive control of hydraulic actua tors with exible mechanical loads The approach is based on recursive identi cation of low order models of the dynamics from valve input to actuator position and e ective load pressure respectively The model parameters are used to com pute a regulator that gives a well damped system with good servo properties The identi ...

Mechanical resonance occurs during the operation of a maglev inertially stabilized platform (MISP). The MISP is driven by motor gear and clearance changes commutation, which makes frequency variable. Conventional notch filters with constant parameters are not ideal for variable suppression. In this study, forgetting factor in recursive least squares (RLS) algorithm was improved to estimate onli...

This paper is concerned with studying the forgetting factor of the recursive least square (RLS). A new dynamic forgetting factor (DFF) for RLS algorithm is presented. The proposed DFF-RLS is compared to other methods. Better performance at convergence and tracking of noisy chirp sinusoid is achieved. The control of the forgetting factor at DFF-RLS is based on the gradient of inverse correlation...

State-of-charge (SOC) estimations of Li-ion batteries have been the focus of many research studies in previous years. Many articles discussed the dynamic model’s parameters estimation of the Li-ion battery, where the fixed forgetting factor recursive least square estimation methodology is employed. However, the change rate of each parameter to reach the true value is not taken into consideratio...

In this paper, we propose two new and different approaches to forgetting variables for ALC based on the well-known tableau algorithm. The first approach computes the result of forgetting via rolling up tableaux, which also provides insights of the decidability of existence of forgetting inALC . When the result of forgetting does not exist, we provide an incremental method for computing approxim...

We examined the potential cost of practicing suppression of negative thoughts on subsequent performance in an unrelated task. Cues for previously suppressed and unsuppressed (baseline) responses in a think/no-think procedure were displayed as irrelevant flankers for neutral words to be judged for emotional valence. These critical flankers were homographs with one negative meaning denoted by the...

Nowadays, most of the industrial companies adopt several digital tools to improve their performance, e.g. decreasing the production costs, reducing the delivery time, optimizing the production scheduling, etc.. However, the interoperability between such digital tools is still far from being reached, thus failing to fully exploit the potentiality of a virtual manufacturing approach. This researc...