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001-es BibID:BIBFORM090755
035-os BibID:(cikkazonosító)815 (Scopus)85099862943 (WOS)000610903800001
Első szerző:Almusawi, Husam Abdulkareem (mérnök)
Cím:Design and Development of Continuous Passive Motion (CPM) for Fingers and Wrist Grounded-Exoskeleton Rehabilitation System / Husam Almusawi, Géza Husi
Dátum:2021
ISSN:2076-3417
Megjegyzések:Impairments of fingers, wrist, and hand forearm result in significant hand movement deficiencies and daily task performance. Most of the existing rehabilitation assistive robots mainly focus on either the wrist training or fingers, and they are limiting the natural motion; many mechanical parts associated with the patient's arms, heavy and expensive. This paper presented the design and development of a new, cost-efficient Finger and wrist rehabilitation mechatronics system (FWRMS) suitable for either hand right or left. The proposed machine aimed to present a solution to guide individuals with severe difficulties in their everyday routines for people suffering from a stroke or other motor diseases by actuating seven joints motions and providing them repeatable Continuous Passive Motion (CPM). FWRMS approach uses a combination of; grounded-exoskeleton structure to provide the desired displacement to the hand's four fingers flexion/extension (F/E) driven by an indirect feed drive mechanism by adopting a leading screw and nut transmission; and an end-effector structure to provide angular velocity to the wrist flexion/ extension (F/E), wrist radial/ulnar deviation (R/U), and forearm supination/pronation (S/P) driven by a rotational motion mechanism. We employed a single dual-sided actuator to power both mechanisms. Additionally, this article presents the implementation of a portable embedded controller. Moreover, this paper addressed preliminary experimental testing and evaluation process. The conducted test results of the FWRMS robot achieved the required design characteristics and executed the motion needed for the continuous passive motion rehabilitation and provide stable trajectories guidance by following the natural range of motion (ROM) and a functional workspace of the targeted joints comfortably for all trainable movements by FWRMS.
Tárgyszavak:Műszaki tudományok Informatikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
hand recovery
rehabilitation robotics
stroke
indirect drive system
grounded-exoskeleton
continuous passive motion (CPM)
wrist rehabilitation
assistive technologies
Megjelenés:Applied Sciences-Basel. - 11 : 2 (2021), p. 1-23. -
További szerzők:Husi Géza (1962-) (gépészmérnök, mechatronikai mérnök, számítógépes tervezőmérnök)
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DOI
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2.

001-es BibID:BIBFORM102153
035-os BibID:(Scopus)85131553351 (cikkazonosító)5451 (WOS)000809194500001
Első szerző:Huri Dávid (gépészmérnök)
Cím:Surrogate Model-Based Parameter Tuning of Simulated Annealing Algorithm for the Shape Optimization of Automotive Rubber Bumpers / Dávid Huri, Tamás Mankovits
Dátum:2022
ISSN:2076-3417
Megjegyzések:Featured Application The developed surrogate model-based parameter tuning method of the simulated annealing algorithm is suitable for solving not only numerical simulation optimization problems but also other computationally intensive model-driven optimizations. A design engineer has to deal with increasingly complex design tasks on a daily basis, for which the available design time is shrinking. Market competitiveness can be improved by using optimization if the design process can be automated. If there is limited information about the behavior of the objective function, global search methods such as simulated annealing (SA) should be used. This algorithm requires the selection of a number of parameters based on the task. A procedure for reducing the time spent on tuning the SA algorithm for computationally expensive, simulation-driven optimization tasks was developed. The applicability of the method was demonstrated by solving a shape optimization problem of a rubber bumper built into air spring structures of lorries. Due to the time-consuming objective function call, a support vector regression (SVR) surrogate model was used to test the performance of the optimization algorithm. To perform the SVR training, samples were taken using the maximin Latin hypercube design. The SA algorithm with an adaptive search space and different cooling schedules was implemented. Subsequently, the SA parameters were fine-tuned using the trained SVR surrogate model. An optimal design was found using the adapted SA algorithm with negligible error from a technical aspect.
Tárgyszavak:Műszaki tudományok Anyagtudományok és technológiák idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
finite element analysis
hyperelastic material model
support vector regression
engineering optimization
simulated annealing
parameter tuning
Megjelenés:Applied Sciences-Basel. - 12 : 11 (2022), p. 1-22. -
További szerzők:Mankovits Tamás (1981-) (gépészmérnök)
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Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM085890
035-os BibID:(cikkazonosító)3584 (WOS)000541440000245 (Scopus)85085608229
Első szerző:Huri Dávid (gépészmérnök)
Cím:Parameter Selection of Local Search Algorithm for Design Optimization of Automotive Rubber Bumper / Dávid Huri, Tamás Mankovits
Dátum:2020
ISSN:2076-3417
Tárgyszavak:Műszaki tudományok Anyagtudományok és technológiák idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Applied Sciences-Basel. - 10 : 10 (2020), p. 1-16. -
További szerzők:Mankovits Tamás (1981-) (gépészmérnök)
Internet cím:DOI
Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM102041
035-os BibID:(cikkazonosító)5012 (Scopus)85130682602 (WOS)000801771800001
Első szerző:Pusztai László Péter (logisztikai menedzser)
Cím:Selection of Production Reliability Indicators for Project Simulation Model / Pusztai László Péter, Nagy Lajos, Budai István
Dátum:2022
ISSN:2076-3417
Megjegyzések:Due to technological enhancements, traditional, qualitative decision-making methods are usually replaced by data-driven decision-making even in smaller companies. Process simulation is one of these solutions, which can help companies avoid costly failures as well as evaluate positive or negative effects. The reason for this paper is twofold: first, authors conducted a Quality Function Deployment analysis to find the most vital reliability indicators in the field of production scheduling. The importance was acquired from the meta-analysis of papers published in major journals. The authors found 3 indicators to be the most important: mean time between failure (MTBF), mean repair time and mean downtime. The second part of the research is for the implementation of these indicators to the stochastic environment: possible means of application are proposed, confirming the finding with a case study in which 100 products must be produced. The database created from the simulation is analyzed in terms of major production KPIs, such as production quantity, total process time and efficiency of the production. The results of the study show that calculating with reliability issues in production during the negotiation of a production deadline supports business excellence.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
production reliability
reliability
mean time between failure (MTBF)
mean time to repair (MTTR)
process simulation
project production
Megjelenés:Applied Sciences-Basel. - 12 : 10 (2022), p. 1-15. -
További szerzők:Nagy Lajos (1964-) (agrármérnök) Budai István (1977-) (folyamatmérnök)
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5.

001-es BibID:BIBFORM113859
035-os BibID:(cikkazonosító)8897 (WoS)001045394800001 (Scopus)85167882920
Első szerző:Szántó Attila (gépészmérnök)
Cím:Optimizing Parameters for an Electrical Car Employing Vehicle Dynamics Simulation Program / Attila Szántó, Sándor Hajdu, Gusztáv Áron Sziki
Dátum:2023
ISSN:2076-3417
Megjegyzések:At the Faculty of Engineering of the University of Debrecen we have dealt with the design and construction of electric prototype race cars for more than a decade. With a focus on more conscious design and racing we developed a vehicle dynamics simulation program, which can be used to generate the dynamics functions of the cars from their technical characteristics and data. In this publication, we deal with the optimization of the technical parameters of the above-mentioned cars for various competition tasks using our simulation program. This is a completely new field of application of the used optimization methods. This concept and idea can effectively help student teams all over the world to prepare for various domestic and international competitions. One of the applied methods is a graphic procedure, the other one is the widely used ?adaptive simulated annealing" (ASA). After a brief description of the simulation program, the applied optimization methods and developed MATLAB codes for them are described. Finally, to demonstrate the effectiveness of the methods, we optimize the parameters of a prototype race car for different competition tasks and present the obtained results
Tárgyszavak:Műszaki tudományok Gépészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
electric prototype race car
vehicle dynamics simulation
optimization
MATLAB/Simulink
Megjelenés:Applied Sciences-Basel. - 13 : 15 (2023), p. 1-20. -
További szerzők:Hajdu Sándor (1978-) (gépészmérnök) Szíki Gusztáv Áron (1973-) (fizikus)
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Intézményi repozitóriumban (DEA) tárolt változat
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6.

001-es BibID:BIBFORM094403
035-os BibID:(cikkazonosító)4542 (Scopus)85106890160 (WOS)000662485800001
Első szerző:Szántó Attila (gépészmérnök)
Cím:Dynamic Test Measurements and Simulation on a Series Wound DC Motor / Attila Szántó, János Kiss, Tamás Mankovits, Gusztáv Áron Szíki
Dátum:2021
ISSN:2076-3417
Megjegyzések:Previously, a dynamic model and a simulation program for series wound DC motors (SWDCM) were developed in MATLAB/Simulink for modelling them in electric vehicles and mechatronic systems. The electromagnetic characteristics of the motor (electric resistances, dynamic inductances), which serve as input parameters of the program, were also measured. Additionally, locked rotor response measurements were performed to test the accuracy of the measured electromagnetic characteristics. This paper presents the experimental procedure and the results of dynamics test measurements that were performed on the same motor, including the procedure for the determination of the necessary input dynamic parameters for the simulation. While the motor spins up from rest, the intensity of the electric current and the angular speed of the rotor are measured. Finally, the simulation and dynamic test results are compared to check the proper operation of the simulation program.
Tárgyszavak:Műszaki tudományok Gépészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
series DC motor
dynamic simulation
MATLAB
dynamic test measurement
Megjelenés:Applied Sciences-Basel. - 11 : 10 (2021), p. 1-18. -
További szerzők:Kiss János Mankovits Tamás (1981-) (gépészmérnök) Szíki Gusztáv Áron (1973-) (fizikus)
Pályázati támogatás:TKP2020- NKA-04
Egyéb
ÚNKP-20-3
Egyéb
Internet cím:DOI
Intézményi repozitóriumban (DEA) tárolt változat
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7.

001-es BibID:BIBFORM103983
035-os BibID:(Scopus)85139979883 (WoS)000866613100001
Első szerző:Szíki Gusztáv Áron (fizikus)
Cím:Measurement System for the Experimental Study and Testing of Electric Motors at the Faculty of Engineering, University of Debrecen / Gusztáv Áron Sziki, Attila Szántó, János Kiss, György Juhász, Éva Ádámkó
Dátum:2022
ISSN:2076-3417
Megjegyzések:The Faculty of Engineering of the University of Debrecen has a long-standing tradition of developing electric and pneumatic-driven prototype race cars. These vehicles are regular participants in domestic and international university competitions. For more conscious development, thus, for more successful racing, a vehicle dynamics simulation program was developed by our research group. One of the main parts of the above program is the simulation of the drive system, including the electric motor. The input data for the motor simulation programs are the electromagnetic and dynamic characteristics of the motor. Most of these characteristics are usually not specified in the motor catalogue; thus, they have to be measured. In this paper, a detailed description of a recently developed measurement system (MS), which is capable of measuring all the above-mentioned characteristics, is presented. Additionally, by applying it, test measurements can also be performed on the motors to check the accuracy of the output functions generated by the simulation programs. Several experimental arrangements and procedures for specific experimental tasks are also presented here as examples for the application of the MS.
Tárgyszavak:Műszaki tudományok Gépészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
electric motor
electromagnetic and dynamics characteristics
measurement system
dynamic modelling and simulation
Megjelenés:Applied Sciences-Basel. - 12 : 19 (2022), p. 1-18. -
További szerzők:Szántó Attila (1993-) (gépészmérnök) Kiss János Juhász György (1958-) (gépészmérnök) Csernusné Ádámkó Éva (1981-) (matematika-informatika szakos tanár)
Pályázati támogatás:TKP2020-NKA-04
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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