Wyświetlanie pozycji 1-20 z 2512

    • Basic Study of Synchronization in a Two Degree of Freedom, Duffing Based System 

      Dąbrowski, Artur; Mnich, Konrad; Stefański, Andrzej (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology. Press ; Division of Dynamics - Faculty of Mechanical Engineering, Lodz University of Technology, 2015)
      The issue of synchronization has been analyzed from many points of view since it was first described in 17th century. Nowadays the theory that stands behind it is so developed, it might be difficult to understand where ...
    • Analytical and Experimental Determination of FML Stiffness and Strength Properties 

      Kamocka, Monika; Mania, Radosław J. (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology. Press ; Division of Dynamics - Faculty of Mechanical Engineering, Lodz University of Technology, 2015)
      The paper presents application of analytical methods of determining the mechanical properties of Fibre Metal Laminates. Chosen micromechanical methods were employed to predict elastic moduli and strength of FML panels. ...
    • 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 (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology. Press ; Division of Dynamics - Faculty of Mechanical Engineering, Lodz University of Technology, 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 ...
    • Fatigue of Steel Plates with Inclusions 

      Jaroniek, Mieczysław; Niezgodziński, Tadeusz (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology. Press ; Division of Dynamics - Faculty of Mechanical Engineering, Lodz University of Technology, 2015)
      Manufactured by the end of the 80s in the last century steel structures were made of steel which contain significant amounts of non-metallic inclusions. As a result of many years of intensive use of the structures made ...
    • Element Birth and Death Method Application to Lamellar Crack Analysis 

      Jaroniek, Mieczysław; Niezgodziński, Tadeusz (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology. Press ; Division of Dynamics - Faculty of Mechanical Engineering, Lodz University of Technology, 2015)
      Load structure, the maximum permissible load is usually determined by the strength calculation (bearing data. Yield stress or strength of the material), or the parameters of fracture mechanics. The paper analyzes the ...
    • Application of the Lyapunov Exponent Based on Current Vibration Control Parameter ( CVC) in Control of an Industrial Robot 

      Szaniewski, Mateusz; Dąbrowski, Artur; Balcerzak, Marek; Zawiasa, Piotr (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology. Press ; Division of Dynamics - Faculty of Mechanical Engineering, Lodz University of Technology, 2015)
      Controlling dynamics of industrial robots is one of the most important and complicated tasks in robotics. In some works [3, 7], there are algorithms of the manipulators steering with flexible joints or arms. However, ...
    • Performance Improvement through the Vane Clocking Effect in a Two-Stage Impulse Turbine 

      Smolny, Antoni; Błaszczak, Jarosław; Sobczak, Krzysztof (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      The paper describes the experimental and numerical investigations of stator clocking effects on performance of a two-stage impulse turbine with low-aspect ratio airfoils. The data present the clocking effect that can be ...
    • Multilevel Optimization of the Semi-Open Impeller in a Centrifugal Pump 

      Papierski, Adam; Błaszczyk, Andrzej (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      Full optimization task for the case of the semi-open impeller with straight blades, requires description of its' geometry by means of, at least, eighteen design variables. In the case of constant meridional cross-section, ...
    • Investigations of Oil-Free Support Systems to Improve the Reliability of ORC Hermetic High-Speed Turbomachinery 

      Tkacz, Eliza; Kozanecka, Dorota; Kozanecki, Zbigniew; Miazga, Kacper (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      The design of a small turbo-generator to produce electricity in the range from a few kWs requires the use of an aerostatic or aerodynamic gas bearing system. The theoretical analysis and the experimental test at the ...
    • Modernization of a Nitrous Gas Turbine-Driven Turbocompressor 

      Kryłłowicz, Władysław; Kozanecki, Zbigniew; Świder, Piotr (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      The modernization of a nitrous gas four-stage centrifugal compressor is presented. The assumptions for modernization, its methodology and the results of thermodynamical, flow and dynamical calculations have been discussed. ...
    • Stability Analysis of a Plane, Rectangular, Boron-epoxy Laminated Plate Basing on Strength Properties Determined by Different Methods 

      Mróz, Andrzej (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      This paper presents the examples of practical applications of composite materials in mechanical engineering and methods in determining of micromechanical properties of a laminate, corresponding to a plate, made of epoxy ...
    • Perturbation Method in the Analysis of Manipulator Inertial Vibrations 

      Szumiński, Przemysław (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      An analysis of inertial component of mechanical vibrations induced during a motion of the MAR industrial manipulator is presented. The mathematical analysis of vibrations is based on the perturbation method. The presented ...
    • Nonlinear normal modes of three degree of freedom mechanical oscillator 

      Perlikowski, Marian (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      In this paper we show the method of calculation of nonlinear normal modes and its application to mechanical coupled systems. We present bifurcation diagram of nonlinear normal modes in three degree of freedom system. We ...
    • Local Dynamic Buckling of C-Shape Profile Subjected to Bending 

      Urbaniak, Mariusz; Kubiak, Tomasz (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)我在打桩女牛仔中被缠住的肌肉粗暴的邻居妻子的黏附诱惑完我在打桩女牛仔中被缠住的肌肉粗暴的邻居妻子的黏附诱惑完,刺激的T包淫乱的诱惑即使视而不见也能提高性欲T包5短篇故刺激的T包淫乱的诱惑即使视而不见也能提高性欲T包5短篇故
      This paper deals with local dynamic buckling of thin-walled girder segments (short beam-columns) subjected to bending. Various shapes of pulse loading (triangle, trapezoid and rectangle) with a duration corresponding to ...
    • Dynamice of Three Unidirectionally Coupled Duffing Oscillators 

      Borkowski, Łukasz (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      This article presents a system of three unidirectionally coupled Duffing oscillators. On the basic of numerical study we show the mechanism of translation from steady state to chaotic and hyperchaotic behavior. Additionally, ...
    • Comparison of the Aluminium Versus Steel Telecommunication Towers in Stochastic Finite Element Method Eigenvibrations Analysis 

      我在打桩女牛仔中被缠住的肌肉粗暴的邻居妻子的黏附诱惑完我在打桩女牛仔中被缠住的肌肉粗暴的邻居妻子的黏附诱惑完,刺激的T包淫乱的诱惑即使视而不见也能提高性欲T包5短篇故刺激的T包淫乱的诱惑即使视而不见也能提高性欲T包5短篇故Solecka, Marta; Kamiński, Marcin我在打桩女牛仔中被缠住的肌肉粗暴的邻居妻子的黏附诱惑完我在打桩女牛仔中被缠住的肌肉粗暴的邻居妻子的黏附诱惑完,刺激的T包淫乱的诱惑即使视而不见也能提高性欲T包5短篇故刺激的T包淫乱的诱惑即使视而不见也能提高性欲T包5短篇故; Szafran, Jacek (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      The main aim of this paper is to make a comparison of the eigenfrequencies of the high telecommunication towers alternatively manufactured using the stainless steel and the aluminium components. It is provided each time ...
    • Polishing of Hard Machining Semiconductor Materials Made of Silicon Carbide 

      Gołąbczak, Marcin (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      In the paper the application of silicon carbide (SiC) in electronics especially for production of p-i-n diodes have been shown. Also the technology of honing process of samples made of silicon carbide using grinding, ...
    • The Strength of a Cut-off Wheel Model Subjected to a Three Point Lateral Load Assessed by Different Methods 

      Kaczmarek, Józef; Świniarski, Jacek (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      In the paper the results of an assessment of a cut-off wheel model subjected to threepoint loading with lateral forces in the form reduced stresses obtained by three methods: analytical, FEM and strain gauge ones have ...
    • The Strength of Cut-off Wheel Model Subjected to a Single Point Lateral Load Assessed by Different Methods 

      Kaczmarek, Józef; Świniarski, Jacek (Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki ŁódzkiejLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering, 2011)
      In the paper the estimation results of strength of a cut-off wheel model subjected to a single point lateral load in the form of a reduced stress obtained by three methods: analytical, FEM (finit~element method) and ...
    • Zielone polimery 

      Pokorska-Jurek, Marta (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology Press, 2020)
      Polski zespół badawczy pod kierunkiem dr hab. Anny Masek, prof. PŁ opatentował całkowicie zielone polimery, czyli takie, które składają się wyłącznie z produktów pochodzenia roślinnego. Roślinne słomki do napojów, ...