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Decomposition of the Equations of Motion in the Analysis of Dynamics of a 3-DOF Nonideal System
(2014)
The dynamic response of a nonlinear system with three degrees of freedom, which is excited by nonideal excitation, is investigated. In the considered system the role of a nonideal source is played by a direct current motor, ...
Vibration Analysis of Collecting Electrodes by means of the Hybrid Finite Element Method
(2014)
The paper presents a hybrid finite element method of shell modeling in order to model collecting electrodes of electrostatic precipitators. The method uses the finite element method to reflect elastic features and the rigid ...
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 ...
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 ...
Asymptotic study of elastic half-plane with embedded punch.
(Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej, 2007)
A contact problem for an elastic half-plane and an embedded rigid punch is studied. The employed mathematical model describes the behavior of a soil with embedded foundation. The analytical solution geverning the stress ...
The finite element model of the human rib cage.
(Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej, 2007)
In the paper, finite element analysis of the rib cage model is applied to recognize stress distributions and to determine the rate of bone fractures (especially for pathologically changed bones). Two thorax models are ...
Analysis of stability of the human gait.
(Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej, 2007)
Analysis of the gait stability of a man moving along an even surface with a constant velocity is presented. The stability criteria applied to biped robots, namely: the Zero Moment Point (ZMP) and the Ground projection of ...
Power consumption analysis of different hexapod robot gaits.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
The paper is focused on the power consumption analysis of different gaits of our constructed hexapod robot controlled by different Central Pattern Generator (CPG) models. There are a lot of gait patterns in the literature ...
Mathematical model for two-dimensional dry friction modified by dither.
(Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
A new dynamic two-dimensional friction model is developed which is
based on the bristle theory. Actually it is the Reset Integrator Model converted into a
two-dimensional space. Usually two-dimensional friction models ...