Vytautas Bučinskas

Vytautas Bučinskas
Vilnius Gediminas Technical University | VGTU · Department of Mechatronics and robotics

Professor

About

88
Publications
24,234
Reads
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457
Citations
Additional affiliations
February 2000 - present
Vilnius Gediminas Technical University
Position
  • Professor (Full)
Education
September 1980 - May 1985
Vilnius Civil Engineering Institute
Field of study
  • Automotive engineering (1609)

Publications

Publications (88)
Article
The implementation of electrostatic microactuators is one of the most popular technical solutions in the field of micropositioning due to their versatility and variety of possible operation modes and methods. Nevertheless, such uncertainty in existing possibilities creates the problem of choosing suitable methods. This paper provides an effort to c...
Article
Full-text available
This paper provides an overview of the application of conducting polymers (CPs) used in the design of tactile sensors. While conducting polymers can be used as a base in a variety of forms, such as films, particles, matrices, and fillers, the CPs generally remain the same. This paper, first, discusses the chemical and physical properties of conduct...
Article
In this paper, modelling and theoretical research of micropositioning system with stepper motor are proposed. The aim of our research is to provide a method, which is suitable for modelling a ball-screw based positioning system controlled by a stepper motor. A created dynamical model of micropositioning system mechanical parts. The second type of L...
Article
Full-text available
Recent industrial robotics covers a broad part of the manufacturing spectrum and other human everyday life applications; the performance of these devices has become increasingly important. Positioning accuracy and repeatability, as well as operating speed, are essential in any industrial robotics application. Robot positioning errors are complex du...
Article
Full-text available
Vibration energy harvesting is receiving significant interest due to the possibility of using extra power in various machines and constructions. This paper presents an energy-harvesting system that has a structure similar to that of a linear generator but uses permanent magnets and magnetorheological fluid insets. The application of a standard vehi...
Article
Full-text available
Paper provides an attempt to create a methodology for automated structure health monitoring procedures using vibration spectrum analysis. There is an option to use autoregressive (AR) spectral analysis to extract information from frequency spectra when conventional Fast Fourier transformation (FFT) analysis cannot give relevant information. An auto...
Article
Full-text available
This review is dedicated to the advanced applications of robotic technologies in the industrial field. Robotic solutions in areas with non-intensive applications are presented, and their implementations are analysed. We also provide an overview of survey publications and technical reports, classified by application criteria, and the development of...
Article
Full-text available
Human falls pose a serious threat to the person’s health, especially for the elderly and disease-impacted people. Early detection of involuntary human gait change can indicate a forthcoming fall. Therefore, human body fall warning can help avoid falls and their caused injuries for the skeleton and joints. A simple and easy-to-use fall detection sys...
Article
Recent progress observed in 'powdered composites', considered as advanced electrical inductance materials, brought some promising applications in flexible tactile, pressure and force sensors, which can be based on compressed metal oxide powder mass materials. Therefore, in this paper the evaluation of the resistance of force-sensitive material – sy...
Article
Full-text available
Concept of symmetry covers physical link between road profile form, vehicle dynamic characteristics, and speed conjunction. Symmetry frame between these items is asymmetric itself and has no direct expression, but it affects a vibration level on the vehicle and driving comfort. Usually, we can change only the vehicle’s speed to achieve desired vibr...
Chapter
Definition of movement trajectories using absolute sensors is a challenging problem in various application fields due to the appearing additive errors. For the trajectory definition, most often used Inertial measurement units (IMU) consisting of accelerometers, gyroscopes, and magnetometers require the implementation of sensor fusion algorithms and...
Chapter
Road irregularities are the main effect influencing driving quality, due to its unpredictability driver can not find the best driving parameters easily and fast. Identification of road profile lets us control the vehicle’s damping characteristics and increase driving quality as fast as possible. Power Spectral Density (PSD) could be easily found fr...
Article
Full-text available
Vibration analysis plays an essential role to enhance the design of the vehicle, related to its comfort and safety level. It is useful to determine the relations between the road profile or its characteristics to the particular properties of vehicles and evaluate the dynamic response to the applied road profile. During the design stage, the simulat...
Article
Full-text available
The progress observed in ‘soft robotics’ brought some promising research in flexible tactile, pressure and force sensors, which can be based on polymeric composite materials. Therefore, in this paper, we intend to evaluate the characteristics of a force-sensitive material—polyethylene-carbon composite (Velostat®) by implementing this material into...
Article
A pencil graphite electrode was used for electrochemical synthesis of polypyrrole in an aqueous solution. Two key features of the polymerization were investigated: 1) the pH of the aqueous solution and 2) number of potential pulses for obtaining the polymer on the electrode. The pH values of the aqueous solutions were as follows: pH 1.0, pH 3.0 and...
Chapter
Harvesting of mechanical vibration energy recently is a popular idea, but its implementation is still limited due to real size of harvesters and efficiency of the systems. Here provided an idea and realization of smart shock absorber with smart liquid, able to generate electric energy from vehicle suspension excitation and thus damping vehicle vibr...
Chapter
The increase in energy consumption also increases the damage to the environment and the toxicity of water still is one of the main problems in the world. Microbial fuel cells (MFCs) are one of the alternative energy sources. The study demonstrates the possibility to use yeast as a probe to assess redox and electrophile-based toxicities and to exten...
Chapter
Full-text available
Positioning accuracy of articulated robots decreases significantly when they are fully loaded and operated at maximum speeds due to increased inertia. Hard-coding correction algorithms using traditional methods is extremely difficult. A system, which could automatically detect patterns in deviations and offer possible corrections at every motion cy...
Chapter
In order to achieve an accurate positioning for an investigation of micro- or nano objects or to operate with them in micro or nanoscale, modern and sophisticated tools are required. Over the past years of the development of micro- and nanomanipulation tools, novel types were invented, or old ones were upgraded. Those tools such as microgrippers, m...
Article
Full-text available
Automated emotion recognition (AEE) is an important issue in various fields of activities which use human emotional reactions as a signal for marketing, technical equipment, or human–robot interaction. This paper analyzes scientific research and technical papers for sensor use analysis, among various methods implemented or researched. This paper co...
Chapter
Living cells mechanical properties establishment from Atomic force microscopy (AFM) force-separation curves is a challenge because the calculated Young’s modulus depends on the applied mathematical model. The more reliable results can be obtained using finite element models. In this work, yeast cells with different mechanical properties were measur...
Chapter
Atomic force microscope (AFM) is a promising tool in micro and nano size objects researches. Contact mode AFM has advantages comparing to non-contact modes: the scanning speed is higher, and atomic resolution can be achieved. The main limiting factor in contact mode AFM is scanning speed. At high scanning speed the ‘loss of contact’ phenomenon occu...
Article
The article describes a method of increasing the adhesion of the wheel to the rail based on the preliminary electrification of the abrasive-air mixture before its feed into a contact. A simulation model of the movement of sand in the system “injecting nozzle of a sandbox - a rail” is presented. The effectiveness of the proposed method to improve ad...
Article
The dynamics of atomic force microscope (AFM) acting in contact mode is crucial for correct interpretation of AFM images and especially for the identification of artefacts and the determination of their sources. This paper presents a methodology for the interpretation and improvement of the AFM image quality. The developed AFM dynamic model has bee...
Article
Full-text available
In order to maintain competitiveness and a technical edge business entity are increasingly implementing advanced technical solutions in their operational processes, most of which include the installation of various type robotic systems. One of the best known and widely distributed examples of universal robotic system is Kuka-Youbot, which is a modu...
Article
Full-text available
Increasing the imaging rate of atomic force microscopy (AFM) without impairing of the imaging quality is a challenging task, since the increase in the scanning speed leads to a number of artifacts related to the limited mechanical bandwidth of the AFM components. One of these artifacts is the loss of contact between the probe tip and the sample. We...
Article
Elastic modulus of the furniture coatings is an important parameter, which indicates the curing state of the composite resin curable by the ultraviolet radiation. Non-contact way of elastic modulus measurement by the transverse acoustical waves, propagating perpendicular to the surface of a 10- $\mu \text{m}$ thick polymer, is shown as a suitable...
Preprint
Increasing of the imaging rate of conventional atomic force microscopy (AFM) is almost impossible without impairing of the imaging quality, since the probe tip tends to lose contact with the sample. We propose to apply the additional nonlinear force on the upper surface of a cantilever, which will help to keep the tip and surface in contact. In pra...
Article
Full-text available
Steel ropes are complex flexible structures used in many technical applications, such as elevators, cable cars, and funicular cabs. Due to the specific design and critical safety requirements, diagnostics of ropes remains an important issue. Broken wire number in the steel ropes is limited by safety standards when they are used in the human lifting...
Article
These urban indicators can serve in performing integrated monitoring, assessing and recommending objectives sought by cities by different quantitative and qualitative aspects. Some of these tools can be applied to assessing a city's quality of life. One of the goals of this article is to compare several alternative methods for assessing a city's qu...
Conference Paper
Atomic force microscope (AFM) – is device widely used in many scientific fields for nano-scale surface scanning. AFM also can be used to probe mechanical stiffness, electrical conductance, resistivity, magnetism and other properties. The main limitation of AFM implementation is relatively low scanning speed. This speed depends from dynamical charac...
Conference Paper
Powering various electronic devices using mechanic energy harvester became ordinary solution for remotely installed ones. Recent installation of harvesters on surfaces with steady-state harmonic vibrations is well known. Harvesters, utilizing chaotic vibration for energy gaining, require define design and its dynamic parameters. Implementation of e...
Article
Full-text available
Shock absorbers allow the damping of suspension vibrations, by dissipating kinetic energy. This energy theoretically can be harvested; however, practical solutions are not easily obtainable. This paper is dedicated to analyzing and evaluating the vibration energy in a vehicle's suspension that is generated by road excitations. Also, it estimates th...
Article
Full-text available
Background: Where is over 100 reconstruction techniques described for acromioclavicular (AC) joint reconstruction. Although, it is not clear whether the presence of the sternoclavicular (SC) joint influences the biomechanical properties of native AC ligaments and reconstruction techniques. The purpose of the present study was to investigate the bi...
Article
This paper presents modelling of various gas application to modified atomic force microscope sensor in order to change its existing dynamic characteristics. This paper represents part of continuous research, which is focused on improvement of scanning speed of atomic force microscope (AFM) sensor. Subject of our research is enhancement of dynamic c...
Article
Magnetorheological (MR) dampers are currently used in various areas, such as: human prosthetics, seismic protection, active suspensions, safety systems, amongst other. This paper deals with the proper design of a MR damper in the innovative field for vibration control. A methodology for calculation some principal characteristics of the damper such...
Article
Full-text available
There are many applications of magneto-rheological (MR) damping devices, utilizing their properties of simple damping control under the application of a magnetic field. Nevertheless, damping properties of the known MR dampers remain non-linear; therefore, implementation of such devices within a wide range of vibrations requires further research. Th...
Article
Full-text available
Introduction: The total hip arthroplasty (THA) as part of acute fracture management is used for acetabular fractures in elderly patients. Our objective was to assess the stability of osteosynthesis performed using 2 different techniques in combination with THA in an experimental model. Materials and methods: We conducted 20 experiments using the...
Article
This paper is intended to reveal possibilities of defects finding in the wire ropes using dynamic properties of the tensed wire rope using specially designed test rig. The subject of the research is the tensioned wire rope with broken wires, located on surface of the rope.Fragment of steel rope (4 mm diameter and 1.35 m length) was tested experimen...
Article
This paper dedicated of introduction of dynamic model of improved mechanical system of sensor of atomic force microscope. The subject of the research is enhancement of dynamic characteristics of cantilever - main mechanical part of sensor. These characteristics defines frequency of oscillations of mentioned cantilever and are main limitations of th...
Chapter
Definition of Young’s modulus for majority of materials is the routine operation. In case of materials with low stiffness this task requires special procedure and sophisticated machinery. Cotton flock is the case, where compressive stiffness of cotton flock is so small for direct measurement, so one of possible solution is proposed indirect method...
Chapter
Atomic force microscope (AFM) is a remarkable device for nanoscale surface scanning. Among several positive features, speed of a scanning limits implementation of AFM. This paper proposes method that enables to increase a speed of scanning by modifying some features of mechanical sensor by adding a nonlinear force to lever of a mechanical sensor of...
Article
This paper is dedicated to one part of research of human mechanical energy harvester. Harvesters produce electrical energy from human's kinetic energy. Harvesting energy from human body is particularly useful for military portable electronic equipment, life supporting implantable medical devices (IMD) and consumer electronic devices. As a basis of...
Article
Transverse and rotational vibrations of steel rope are important issues in various technical installations. Dynamic properties of rope fragment are also useful as diagnostic parameters for broken wire detection within steel rope. This paper is intended to research the steel rope dynamic properties using lumped mass model. Theoretical detection of d...
Article
In a modern environment, during the evolution of international activities, from mobility to international education hubs, universities are searching for new internationalization tools to implement those undertakings more effectively in terms of finance and time. Co-operation with other regions of the world and international openness are the key fac...
Article
Full-text available
Atomic Force Microscopy (AFM) is a method that allows obtaining an image of the surface of the sample in high resolution. This article investigates the problems associated with modeling a mechanical structure of a microscope sensor of atomic force.The paper refers to the previous scientists’ works and describes most frequently used methods of model...
Article
The paper deals with the problem of suppressing vibration of the arm of Motoman SSF200 robot within the frame of the technological process. Based on an overview of literature, a semi-active vibration control system was selected and a double ended magnetorheological damper (MR) was designed. After testing the acceleration of the robot arm in milling...
Article
Full-text available
This paper is intended to reveal possibilities to research of brokenwire on the wire ropes using dynamic properties of tensedwire rope and research properties of broken wire in piece ofwire rope when it is affixed on the wire rope in special testrig. During experimental test wire rope and broken wire on thetensed wire rope dynamic properties was es...
Article
This paper is intended to reveal possibilities to research of brokenwire on the wire ropes using dynamic properties of tensedwire rope and research properties of broken wire in piece ofwire rope when it is affixed on the wire rope in special testrig. During experimental test wire rope and broken wire on thetensed wire rope dynamic properties was es...
Article
In the article an overview of magnetorheological shock absorbertypes is presented, theoretical calculations of heat dispersion,magnetic field strength produced by shock absorber as well asmaximum power of electromagnet are provided. The article alsoprovides device damping force in line with a change of devicetemperature. In the end of the research...
Article
This paper is intended to research of mechanical behaviour of magneto-rheological fluid in magnetic field. This liquid is with highly non-linear properties in magnetic field and their mechanical behaviour cannot be obtained directly. Additional pressure generated by magnetic field strength causes change of magneto-rheological fluid sur-face, theref...