Wyświetlanie pozycji 87-106 z 267

    • Fatigue of Steel Plates with Inclusions 

      Jaroniek, Mieczysław; Niezgodziński, Tadeusz (Lodz University of Technology. Faculty of Mechanical Engineering. Department Division of Dynamics.Wydawnictwo Politechniki Łódzkiej. Wydział Mechaniczny. Katedra Dynamiki Maszyn., 2015)
      Manufactured by the end of the 80s in the last century steel structures were made of steel which contain signi cant amounts of non-metallic inclusions. As a result of many years of intensive use of the structures made ...
    • Feeding and Cooling and Time of Thermal Treatment of a Massive Bush Made of the Complex Aluminum Bronze Cast by the Lost Foam 

      Just, Paweł; Pisarek, Bogusław (2014)
      Small additions of Cr, Mo and W to aluminium-iron-nickel bronze are mostly located in phases κi (i=II; III; IV),and next in phase α (in the matrix) and phase γ2. They raise the temperature of the phase transformations in ...
    • Finite element modelling of bended laminate channel beams. 

      Urbaniak, M.; Świniarski, J.; Niezgodziński, T. (Wydział Mechaniczny. Katedra Wytrzymałości Materiałów i Konstrukcji. Politechnika ŁódzkaLodz University of Technology. Faculty of Mechanical Engineering. Department of Strength of Materials and Structures, 2015)
    • Free and forced oscillations of Timoshenko beam made of viscoelastic material. 

      Manevich, A.; Kołakowski, Zbigniew (Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej, 2011)
      Dynamics of Timoshenko's beam made of a viscoelastic material is studied. Dimensionless equations of motion are obtained, depending only on two parameters, one of which relates to the shear flexibility and the second – to ...
    • Free vibrations of an unbounded periodically reinforced elastic layer 

      Woźniak, Czesław; Wągrowska, M.; Szlachetka, O.; Witkowska-Dobrev, J. (2012)
      The object of analysis is an unbounded layer made of two isotropic, linear elastic materials and periodically laminated along the Ox1 axis (cf. Fig.1). The layer is resting on the rigid base. It is ...
    • Granulation of Cu-Al-Fe-Ni Bronze 

      Pisarek, Bogusław (2014)
      With the increase in wall thickness of the casting of iron-nickel-aluminium-bronze, by the reduction of the cooling rate the size of κII phase precipitates increases. This process, in the case of complex aluminium bronzes ...
    • Grinding Process Results with Oil Mist. 

      Wójcik, Ryszard; Wejman, Przemysław (Lodz University of Technology. Faculty of Mechanical Engineering. Department Division of Dynamics.Wydawnictwo Politechniki Łódzkiej. Wydział Mechaniczny. Katedra Dynamiki Maszyn., 2016)
      The paper presents a study of the process of grinding titanium grinding wheels with mikrokorundu, sanding at surfaces involving liquid - cooling lubricants using MQL, used machining fluid - propylene glycol and other ...
    • Hybrid, finite element-artificial neural network model for composite materials. 

      Lefik, Marek (Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej, 2004)
      An application of Artificial Neural Networks for a definition of the effective constitutive law for a composite is described in the paper. First, a classical homogenisation procedure is directly interpreted with a use of ...
    • Hybrydowa metoda wykorzystywana do chłodzenia strefy skrawania w procesie szlifowania. 

      Świerczyński, Jakub (Stowarzyszenie Inżynierów i Techników Mechaników Polskich, 2012)
    • Identification of a non-linear damping coefficient characteristics in the free decay test of a single pendulum with friction. 

      Awrejcewicz, Jan; Olejnik, Paweł (Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
      A pendulum in form of an equal arms angle body being a part of a two degrees-of-freedom mechanical system with friction is identified with respect to the observed in uence of some resistance of its rotational motion ...
    • Impact behaviour of spot-welded thin-walled frusta. 

      Kotełko, M.; Mołdawa, A. (Wydział Mechaniczny. Katedra Wytrzymałości Materiałów i Konstrukcji. Politechnika ŁódzkaLodz University of Technology. Faculty of Mechanical Engineering. Department of Strength of Materials and Structures, 2015)
    • Implementation of the New Control Methods in Simplification of a Multidimensional Control and Optimization of a Control System Parameters. 

      Pijanowski, Karol; Dąbrowski, Artur; Balcerzak, Marek (Lodz University of Technology. Faculty of Mechanical Engineering. Department Division of Dynamics.Wydawnictwo Politechniki Łódzkiej. Wydział Mechaniczny. Katedra Dynamiki Maszyn., 2015)
      The main purpose of this text is to present application of the Largest Lyapunov Exponent (LLE) as a criterion for optimization of the new type of simple controller parameters. Investigated controller is the part of numerically ...
    • The influence of cross-section shape of the car roof rail on the quasi-dynamic buckling modes 

      Mróz, Andrzej (Wydawnictwo Politechniki Łódzkiej. Wydział Mechaniczny. Katedra Dynamiki Maszyn., 2012)
      This paper presents the results of numerical analysis of the aluminium profiles subjected to dynamic, of different time duration impulse loading. The analysis includes the change in cross–section of the roof rail, ranging ...
    • Influence of foam filling on dynamic response of hemispherical shell subjected to blast pressure 

      Świniarski, Jacek; Kowal-Michalska, Katarzyna; Niezgodziński, Tadeusz (2012)
    • Influence of intermediate foil on air-foil bearings performance and exploitation properties. 

      Łagodziński, Jakub; Miazga, Kacper (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 ...
    • Influence of position of an anvil beam on vibrations of collecting electrodes. 

      Nowak, Andrzej; Nowak, Paweł; Awrejcewicz, Jan (Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
      The paper presents experimentally verified computational model of the collecting electrodes in electrostatic precipitator (ESP). Discretisation of the whole system, both the beams and the electrodes, is carried out by means ...
    • Interactive buckling in thin-walled beam-columns with widthwise varying orthotropy. 

      Kubiak, Tomasz (Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej, 2006)
      An analysis of local buckling of thin-walled beam-columns, taking account global precritical bending within the first order approximation, is presented in the paper. The problem of interactive buckling of the structure is ...
    • Interactive buckling of fgm columns under compression 

      Kołakowski, Z.; Teter, A. (Wydział Mechaniczny. Katedra Wytrzymałości Materiałów i Konstrukcji. Politechnika ŁódzkaLodz University of Technology. Faculty of Mechanical Engineering. Department of Strength of Materials and Structures, 2015)
    • Internal resonances in nonlinear vibrations of a continuous rod with microstructure. 

      Andrianov, Igor V.; Awrejcewicz, Jan; Danishevskyy, Vladyslav V.; Markert, Bernd (Politechnika Łódzka. Wydział Mechaniczny. Katedra Automatyki, Biomechaniki i Mechatroniki., 2015)
      Nonlinear longitudinal vibrations of a periodically heterogeneous rod are considered. Geometrical nonlinearity is described by the Cauchy–Green strain tensor. Physical nonlinearity is modelled expressing the energy of ...
    • The Inuence of Cross-Section Shape of the Car Roof Rail on the Quqsi-Dynamic Buckling Modes 

      Mróz, Andrzej (Lodz University of Technology. Faculty of Mechanical Engineering. Department Division of Dynamics.Wydawnictwo Politechniki Łódzkiej. Wydział Mechaniczny. Katedra Dynamiki Maszyn., 2013)
      This paper presents the results of numerical analysis of the aluminium profiles subjected to dynamic, of different time duration impulse loading. The analysis includes the change in cross–section of the roof rail, ranging ...