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Strain analysis and structural optimization of functionally graded rod with small concentration of inclusions.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
The homogenization procedure is applied to strain analysis and optimal
design of a Functionally Graded (FG) rod in the case when the inclusion size is
essentially less than a distance between them. The method is illustrated ...
Mechanical systems with two nonlinear springs connected in series.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
The aim of the paper is analysis of dynamical regular response of the
nonlinear oscillator with two serially connected springs of cubic type nonlinearity. Behaviour of such systems is described by a set of differential-algebraic ...
Simulating the damped vibrations of a fractional oscillator with fuzzy initial conditions.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
A Picard-like scheme using quadrature and differential quadrature
rules, formerly introduced to solve integro-differential equations, is herein adapted
to solve the problem of an oscillator with damping defined by the ...
Theoretical analysis of the foil bearings dynamic characteristics.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
In the theoretical analysis, three systems were identified: a rotor, a
gas film and a exible structure. The mathematical analysis involves formulation of analytical equations for each of these elements and determination ...
Experimental and numerical investigations of a pendulum driven by a low-powered DC motor.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
The work is a continuation of numerical and experimental investigations of
a system consisting of a single pendulum with the joint horizontally driven by the use
of a crank-slider mechanism and DC motor. The power supplied ...
On the clutch dynamics with the approximations of resulting contact forces.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
The aim of the work is to present effectiveness of numerical simulations of
clutch with frictional contacts, elaborated by some of the current articles in the last
few years. The friction models assumes full developed ...
Influence of intermediate foil on air-foil bearings performance and exploitation properties.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
Air-foil technology is an interesting alternative for classic rolling or oil
bearings in turbomachinery. It ensures low power losses, do not require external
lubrication or pressurization and is capable of working with ...
On the vibrations of a composite structure with hexagonal structure of a circular inclusions.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
One of the major advantages of homogenization is a possibility of the
generalization of the obtained results. Namely, if a solution to the local problem is found, then without principal problems one may solve not only the ...
Axially excited spatial double pendulum nonlinear dynamics.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
Analysis of a 3D spatial double physical pendulum system, coupled by two
universal joints is performed. External excitation of the mechanism is realized
by axial periodic rotations of the first joint of the pendulum. ...
Dynamics of two coupled 4-DOF mechanical linear sliding systems with dry friction.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
The paper introduces a model of two identical coupled 4-DOF mechanical
linear sliding systems with dry friction coupled with each other by a linear torsional
spring. The appropriate components (bodies) of the coupled ...