
Damian GąskaSilesian University of Technology · Faculty of Transport and Aviation Engineering
Damian Gąska
Doctor of Engineering
About
67
Publications
38,610
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492
Citations
Introduction
Nonlinear dynamics, Energy harvesting, Cranes, FEM
Additional affiliations
February 2008 - present
Publications
Publications (67)
The aim of this paper is to present a methodology for implementing the high-energy orbits which is still an open problem for nonlinear energy harvesters. To achieve it, this paper presents a new design of system with a flag configuration which potential function is shaped with the use of elastic elements. We have identified the lift force in FEM fo...
This paper presents research on a new type of energy harvester consisting of two parts-the classical tristable system based on a flexible beam and permanent magnets, supplemented by the second part: an additional nonlinear support made of ethylene propylene diene monomer (EPDM). This support is used to amplify the vibration amplitude. As part of th...
The paper presents a study of issues related to the identification of a non-linear mathematical model describing dynamics of the temporomandibular joint (TMJ) disc. Based on the tests of real disks, a non-linear model was built and verified, and then numerical simulations were carried out, the purpose of which was to analyze the behavior of the mod...
Wind-induced vibration energy harvesting has a great potential for utilizing wind energy to supply power for low-powered devices. To improve the working performance of energy harvesters effectively, a suitable structural design is crucial. This paper proposes a dual-beam piezo-magneto-elastic wake-induced vibration energy harvesting system to enhan...
In this paper, we compare three energy harvesting systems in which we introduce additional bumpers whose mathematical model is mapped with a non-linear characteristic based on the hyperbolic sine Fibonacci function. For the analysis, we construct non-linear two-well, three-well and four-well systems with a cantilever beam and permanent magnets. In...
The paper presents the application of a new impulse excitation diagram (IED) to help realize high-energy orbits in nonlinear energy harvesting systems. In the case of non-linearity, we can deal with the occurrence of coexisting solutions and the proposed diagram allows for the use of the impulse excitation method in order to change the solution. Fo...
Dynamical systems for kinetic energy harvesting have recently been designed that use nonlinear mechanical resonators and corresponding transducers to create electrical output. Nonlinearities are important for providing a broadband input frequency efficiency, which is necessary to ensure that the output voltage is at a satisfactory level in the case...
Dynamical systems for kinetic energy harvesting have recently been designed that use nonlinear mechanical resonators and corresponding transducers to create electrical output. Nonlinearities are important for providing a broadband input frequency efficiency, which is necessary to ensure that the output voltage is at a satisfactory level in the case...
This article presents the basic airfoil model with two degrees of freedom - the semi-rigid model, where its forced vibrations were considered, and the exciting force is the aerodynamic force, including its periodic changes, that is, gusts. Since the phenomenological model under study has a coupled form, its versions after decoupling are presented,...
The basic types of multi-stable energy harvesters are bistable energy harvesting systems (BEH) and tristable energy harvesting systems (TEH). The present investigations focus on the analysis of BEH and TEH systems, where the corresponding depth of the potential well and the width of their characteristics are the same. The efficiency of energy harve...
Paper presents computer simulations conducted to study the influence of the configuration of an energy harvesting system with tunnel mechanical characteristics in terms of its energy generation efficiency. In this context, numerical simulation experiments were carried out to assess the impact of physical properties and initial conditions on the occ...
Energy harvesters based on non-linear systems are promising devices for extracting
energy from mechanical vibrations. This paper presents a new design of energy
harvester consisting of two coupled nonlinear systems; the Duffing oscillator and a
system with quasizero stiffness. A numerical analysis of the dynamics of the harvester
is carried out, pr...
This paper presents the results of numerical simulations of a non-linear, bistable system for harvesting energy from ambient vibrating mechanical sources. Detailed model tests were carried out in relation to the system consisting of a piezoelectric beam with additional springs attached. Based on the springs selection symmetry of potential wells was...
A nonlinear energy harvester with asymmetric potential wells is studied numerically. An energy transducing piezoelectric patch is attached to the cantilever elastic beam to harvest kinetic energy of the moving frame. To obtain an asymmetric effect in the double well potential induced by permanent magnets, an elastic ferromagnetic beam resonator mis...
This article compares flexible couplings of the spider-type insert, and the tire-type insert. The influences of the volume and hardness of the elastomeric connector on the characteristics of this type of coupling, as well as the course of the change of the stiffness coefficient as a result of changes in the operating temperature, are presented. In...
This article presents research carried out using physical data from the
experimental construction of an overhead crane. This article aims to determine the dynamic
behaviour of the cart-pendulum system when the hoisting mechanism hits the new bumper
design at the end of the girder support structure with selected speed and bumper material
to the leng...
The subject of the research contained in this paper is a new design solution for an energy harvesting system resulting from the combination of a quasi-zero-stiffness energy harvester and a two-stage flexible cantilever beam. Numerical tests were divided into two main parts-analysis of the dynamics of the system due to periodic, quasiperiodic, and c...
The paper shows the results of researching the rollers used in belt conveyors working in a hard coal mine. Rollers should be characterized by low rotation resistance, which results in low power consumption of the propulsion unit. The tests conducted aimed to assess the technical condition of the new C-type rollers after several years of operation i...
In this work, modeling and nonlinear analysis of an energy harvesting system from vibrating mechanical devices are presented. Detailed model analyses are carried out for the system consisting of two flexible beams interconnected mechanically through elastic and dissipative elements and electrically by circuits through piezoelectric patches. During...
In this paper, a study on modelling energy harvesting efficiency of a quasi-zero stiffness system is presented. Mechanical characteristics of the system are identified, and the effect of its stiffness and geometry on the function describing energy potential barrier is determined. It has been shown numerically that an increase in equivalent stiffnes...
The subject of the model research contained in this paper is a new design solution of the energy harvesting system with a star-shaped structure of elastic elements and variable configuration. Numerical experiments focused mainly on the assessment of the configuration of elastic elements in the context of energy harvesting efficiency. The results of...
In this paper, a study on modelling energy harvesting efficiency of a quasi-zero stiffness system is presented. Mechanical characteristics of the system are identified, and the effect of its stiffness and geometry on the function describing energy potential barrier is determined. It has been shown numerically that an increase in equivalent stiffnes...
The piezoelectric energy-harvesting system with double-well characteristics and hysteresis
in the restoring force is studied. The proposed system consists of a bistable oscillator based on a
cantilever beam structure. The elastic force potential is modified by magnets. The hysteresis is an
additional effect of the composite beam considered in this...
This chapter presents the results of computer simulations of the system of energy harvesting from vibrating mechanical devices. Detailed model tests were carried out for the system of cantilever beams coupled with elastic elements. The end of one vibrating element is loaded with a permanent magnet, which defines a non-linear potential characteristi...
This paper presents the results of modelling a new nonlinear multi-stable QZEH (quasi-zero energy harvester) system for harvesting energy from vibrating mechanical devices. Detailed tests were carried out on the system model, which consisted of a beam and a system of springs, which were used to determine the potential of a quasi-flat well. Two-dime...
This paper investigates the nonlinear dynamics of a flexible tyre coupling via computer modelling and simulation. The research mainly focused on identifying basins of attraction of coexisting solutions of the formulated phenomenological coupling model. On the basis of the derived mathematical model, and by assuming ranges of variability of the cont...
In this paper, the frequency broadband effect in vibration energy harvesting was studied numerically using a quasi-zero stiffness resonator with two potential wells and piezoelectric transducers. Corresponding solutions were investigated for system excitation harmonics at various frequencies. Solutions for the higher voltage output were collected i...
A method for selecting dynamic parameters and structures of drive systems using the synthesis algorithm is presented. The dynamic parameters of the system with six degrees of freedom, consisting of a power component (motor) and a two-speed gearbox, were determined, based on a formalized methodology. The required gearbox is to work in specific reson...
This paper presents the results of numerical simulations of a non-linear, tristable system for harvesting energy from vibrating mechanical devices. Detailed model tests were carried out in relation to the system consisting of a beam and three permanent magnets. Based on the derived mathematical model and assuming a range of control parameter variab...
This paper examines the oscillations of a spherical pendulum with horizontal Lissajous excitation. The pendulum has two degrees of freedom: a rotational angle defined in the horizontal plane and an inclination angle defined by the pendulum with respect to the vertical z axis. The results of numerical simulations are illustrated with the mathematica...
The increasing traffic intensity and the emerging disproportions in the development of individual modes of transport cause that the European transport system becomes overloaded. Therefore, an important premise for the development of transport are the requirements of environmental protection, which affect the preference of environmentally friendly b...
In this paper, model tests were carried out, which mainly focused on the numerical mapping of the
characteristics of the gear backlash. In particular, the effect of the approximation function on the value of
the largest Lyapunov exponent was investigated. The generated multi-coloured maps served as a criterion
for verifying the results of the model...
The paper presents the results of numerical investigations of the overhead travelling cranes load motion. The model studies assumes that the load is suspended on the inextensible rope. Conversely, its motion is triggered by an external moment. In addition, energy losses in the construction node connecting the rope to the drum are included. At the s...
In this work, model studies were carried out, which focused mainly on structures mapping the geometry of strange attractants - the mathematical pendulum model with the flexible rope and variable length. Such a dynamic system approximates the movement of the overhead travelling crane’s load to a large extent. Conversely, its motion is triggered by a...
The aim of this work is to model the dynamics of flexible couplings. On the basis of a non-linear mathematical model solved by bond graph, the ranges of excitation frequency were determined, in which the movement of the couplings is chaotic. For three couplings, the 3D distributions of the largest Lyapunov exponent and correlation dimension diagram...
The aim of this work is to evaluate the dynamics of the quasi-zero stiffness vibration isolator, with particular emphasis on the density distribution of Poincaré cross-section points for different conditions of the system's excitation. The research was mainly focused on model tests carried out to examine the structures representing the geometry of...
The chapter presents the characteristics of Silesian logistics centres as the most important elements of logistics point infrastructure in the south of Poland, serving connections and integrating various branches of transport in East-West relations. The analysis was carried out on the example of the centre in Gliwice—located in the inland port in t...
This paper presents the results of computer simulations of a gear
model, where the variable stiffness of the meshing and backlash are considered. The outcome of such assumptions is a non-linear mathematical model in which chaotic phenomena can occur. During model studies, attention was paid to the identification of areas limited by the physical par...
The article presents one-girder roadway structures for suspended cranes, conveyors and other machinery, as well as different ways of dimensioning them, taking into account the specifics of the state of the load acting on the lower flange of the roadway in accordance with the new standard EN15011:2011+A1:2014. In addition, an example of numerical mo...
This article presents an approach of numerical modelling of I-beam crane jib, with using the finite element method particularly the most loaded elements at different speeds. One of the possible methods for use in the design process of hoisting dynamics modelling and its effects on the load-carrying structure for the marine jib crane is shown. For p...
This paper concerns issues related to the development of designs of stabilizer bars for new motor vehicle models. It involves not only the designing of a stabilizer bar with the shape required by the manufacturer, but also the preparation of bending and heat treatment processes as well as the performance of strength and fatigue tests. In the protot...
The article presents the results of numerical analysis whose aim was to compare the basic dynamic and strength parameters of lightweight load-carrying crane structures made of aluminium alloys and steel. The analysis covered the typical construction of workshop cranes with a span of 3 to 5 meters, girders in the form of an I-beam and maximum load c...
Główną rolą sprężyn, jak każdego rodzaju elementów sprężystych jest tłumienie wstrząsów wywołanych przez ruch tzw. mas nieresorowanych (kół, hamulców, elementów zawieszenia) po nierównej nawierzchni. Ma to zapewnić nie tylko komfort jazdy, ale też zabezpieczyć cały samochód przed uszkodzeniami. W artykule zaprezentowano podstawy obliczeń wytrzymało...
The problems associated with measurements and diagnostics of working machines
are the most difficult issues of contemporary science. These problems
mainly concern the identification and location of damages. The observed development
of technology and the increasing availability of measurement and diagnostic
methods greatly simplify the observation o...
Purpose of the Paper. This paper is an attempt to mathematically describe the mastication organ muscle functioning, taking into
consideration the impact of the central nervous system.Material. To conduct model tests, three types of craniums were prepared:
short, normal, and long. The necessary numeric data, required to prepare the final calculation...
Unlabelled:
PURPOSE OF THE PAPER: This paper is an attempt to mathematically describe the mastication organ muscle functioning, taking into consideration the impact of the central nervous system.
Material:
To conduct model tests, three types of craniums were prepared: short, normal, and long. The necessary numeric data, required to prepare the f...
Overhead travelling cranes work with intermittent motion, and therefore are most exposed to dynamic loads. In steel constructions, as a result of load pick up from the ground, vibrations of various degrees of intensity are induced, which should be included in crane design. These loads affect both the hoisting mechanisms and load-carrying structures...
The paper presents a microprocessor force recorder, whose design allows the measurement of occlusal forces on a continuous basis with a maximum frequency of 250 Hz. The electronic dental dynamometer records the results of clinical trials in the form of graphic images and text files which are presented directly onto the computer. The recorded result...
The ovalization and microcracks may lead to a considerable reduction of the stabilizer bar fatigue strength and in consequence to its premature damage. Analytical stabilizer bar strength calculations taking the ovalization into consideration are very complex and complicated. Therefore, FEM is more and more frequently applied in tubular stabilizer b...
The paper contains an operations and constructions description of the experimental wireless measuring system for measuring accelerations in bridge cranes, based on PHIDGET 1056 sensors. Developed experimental research and measuring methodology allows the use of the proposed wireless system on other cranes constructions. The paper also shows example...
MODEL STUDIES OF CRANES HOISTING MECHANISMS
Abstract
The problems associated with modeling of cranes hoisting mechanisms is one of the most
difficult issues related to the design of these machines. These difficulties relate primarily to
identify the physical parameters characterizing the rope and the other elements of the hoisting
mechanism. The ob...
MODEL STUDIES OF CRANES HOISTING MECHANISMS
Abstract
The problems associated with modeling of cranes hoisting mechanisms is one of the most
difficult issues related to the design of these machines. These difficulties relate primarily to
identify the physical parameters characterizing the rope and the other elements of the hoisting
mechanism. The ob...
The article shows a way of calculating the tram network capacity. A wide area network in Silesian Conurbation was used as an example (before and after planned modernization). Special attention was put on the traffic limiters like: single-track sections, stops, junctions, crossings with traffic lights, etc. Travel times and other characteristics wer...
Functional disorders of the masticatory organ is a group of diseases characterized by the increasing frequen-cy of instances whereby these disorders affect all age groups. Advances in technology and the application of specialized medical equipment facilitates the observation of masticatory organ disorders. Having regard to limita-tions associated w...
Foresight method is gaining support around the world as a powerful tool that creates common views on future development strategies. It is characterized by a unique feature, which is the maximum participation of stakeholders and experts. The paper presents examples of the results of research carried out based upon the expert methods of foresight pro...
In this study the analysis of elastic stability and strength of load – carrying cranes structures, designed according to Polish Standards were carried out. The analysis was compared to the results of the same analysis according to European Standards EN 13001. The analyzed cranes characterize 6 forms of girders, depending on quantity of membranes an...
This paper presents the application of the concept of moving sidewalks at railway stations (the movable platform) including the calculation of electricity consumption. Particular focus was placed on issue of energy profit and loss in two stages -through the loss (consumption) of energy by using a moving sidewalk at a railway station platform and th...
Streszczenie. Zagadnienia przedstawione w niniejszym artykule dotyczą oceny właściwości mechanicznych liny. Punktem wyjściowym było przeprowadzenie badań laboratoryjnych, które zrealizowano w Centrum Badań i Dozoru Górnictwa Podziemnego Sp. z o.o. w Mysłowicach-Brzezince. Niezbędne badania lin przeprowadzono na specjalistycznej maszynie wytrzymałoś...