Janusz Wyrwal

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The magnetorheological (MR) damper is a semi-active device in which varying electric current flow in coils mounted in the piston leads to changes of its dynamical properties. Development of an accurate mathematical model of the MR damper plays a key role in a successful implementation of semi-active vibration attenuation. This paper concerns with the(More)
In this paper, a short survey of recent results in the field of approximate controllability of nonlinear stochastic fractional order systems is studied. For the analysed classes of stochastic systems the methodology applied to obtain sufficient controllability conditions is discussed. Paper concentrates on a class of stochastic systems that are referred to(More)
The article describes a distributed parameter model of the acoustic field for the fluid enclosed within a bounded domain. The model is given in the form of abstract partial differential equations, defined in an appropriate function space. The theory of partial differential equations, as well as certain results from linear functional analysis is used for its(More)
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