@article{MTMT:34539456,
	title = {Dynamical model for dog clutch shiftability},
	url = {https://m2.mtmt.hu/api/publication/34539456},
	author = {Aljawabrah, Ayham and Lovas, László},
	doi = {10.1556/1848.2023.00745},
	journal-iso = {INT REV APPL SCI ENG},
	journal = {INTERNATIONAL REVIEW OF APPLIED SCIENCES AND ENGINEERING},
	volume = {Online first},
	unique-id = {34539456},
	issn = {2062-0810},
	abstract = {The dog clutch offers advantages in mass and efficiency, but faces challenges in mismatch speed synchronization, which affects its shiftability. Face impact between dog teeth also reduces its lifespan. Our previous work introduced the kinematical shiftability condition that ensures impact-free gearshift but had limitations due to analysis assumptions. This study eliminates those assumptions, but uses a similar approach. Based on our previous work for dog clutch engagement dynamics, we develop the dynamical shiftability condition. Validation with full dog clutch dynamics showed an agreement. Employing another previous work that introduced shiftability map and parametric study method, we study system parameters impact on shiftability but based on the dynamical shiftability condition.},
	year = {2024},
	eissn = {2063-4269},
	orcid-numbers = {Aljawabrah, Ayham/0000-0002-7537-6358; Lovas, László/0000-0001-6710-9084}
}

@article{MTMT:34409720,
	title = {Investigation of the effect of the surface treatment and lubrication during repeated tightening on the nut coefficient of a bolted joint using the Taguchi method},
	url = {https://m2.mtmt.hu/api/publication/34409720},
	author = {Alsardia, Talal and Lovas, László},
	doi = {10.59038/jjmie/180110},
	journal-iso = {JJMIE},
	journal = {JORDAN JOURNAL OF MECHANICAL AND INDUSTRIAL ENGINEERING},
	volume = {18},
	unique-id = {34409720},
	issn = {1995-6665},
	abstract = {Bolted joints are used extensively in mechanical engineering due to their reusability, appearance, and strength advantages.
		In different industrial applications, the separated mechanical components are clamped together during the assembly using a
		tightening process. Estimating precisely the initially achieved clamping force is a persistent problem for providing a secure
		and reliable connection for a particular design. However, the nut coefficient is one of the exploratory methods used for this
		purpose. This paper aims to investigate how the nut coefficient of a bolted joint is influenced by factors such as bolt/nut
		surface treatment and the presence of lubrication at joint contact surfaces throughout the cyclic joint assembly/disassembly
		process, serving as a simulation for real-life maintenance operations where the same bolt/nut are reused. Torquing cycles
		were introduced to bolted joints with two surface finishes and four lubrication conditions. The experiments were conducted
		on bolts at room temperature according to ISO16047. The nut coefficient was calculated for bolt sizes M6*1, M8*1.5, and
		M10*1.5. The results were analyzed using the analysis of variance and Taguchi method L32 for estimating the contribution
		of the different factors on the nut coefficient. It was found that the lubrication was the most significant parameter affecting
		the nut factor regardless of the bolt size. Also, a case study was conducted to investigate the underlying reasons behind the
		significance of lubrication in influencing the nut coefficient across different bolt sizes.},
	year = {2024},
	pages = {131-144},
	orcid-numbers = {Alsardia, Talal/0000-0003-2528-548X; Lovas, László/0000-0001-6710-9084}
}

@article{MTMT:34094287,
	title = {Sensitivity analysis of dog clutch shiftability to system parameters},
	url = {https://m2.mtmt.hu/api/publication/34094287},
	author = {Aljawabrah, Ayham and Lovas, László},
	doi = {10.1556/1848.2023.00644},
	journal-iso = {INT REV APPL SCI ENG},
	journal = {INTERNATIONAL REVIEW OF APPLIED SCIENCES AND ENGINEERING},
	volume = {15},
	unique-id = {34094287},
	issn = {2062-0810},
	abstract = {Previous studies introduced the shiftability condition for successful gearshift, based on the dog clutch kinematics model containing several parameters. This study analyzes the effect of these parameters on the dog clutch shiftability. A method to study the impact of parameters is proposed. The influence of chosen parameter domains is shown. Their influence is recognized based on the shiftability map and the engagement probability. The initial relative position showed a periodic effect within one pitch region. The teeth number, axial speed, and the backlash positively affected the engagement probability, while the mismatch speed and the overlap distance showed a negative effect. The analysis showed lower limit values for the axial speed and the backlash but higher limit values for the mismatch speed and the overlap distance.},
	year = {2024},
	eissn = {2063-4269},
	pages = {61-72},
	orcid-numbers = {Aljawabrah, Ayham/0000-0002-7537-6358; Lovas, László/0000-0001-6710-9084}
}

@article{MTMT:34032374,
	title = {Study the effect of the tooth chamfer angle on the dog clutch shiftability},
	url = {https://m2.mtmt.hu/api/publication/34032374},
	author = {Aljawabrah, Ayham and Lovas, László},
	doi = {10.32972/dms.2023.002},
	journal-iso = {DESIGN MACHINES STRUCTURES},
	journal = {DESIGN OF MACHINES AND STRUCTURES},
	volume = {13},
	unique-id = {34032374},
	issn = {1785-6892},
	abstract = {This paper studies the shiftability of the face dog clutch with chamfered teeth. The effect of the chamfer angle on the shiftability map and the probability are studied. In contrast to previous studies, a generalized mathematical model is developed based on the shiftability condition. The analysis considered two sets of cases: the overlap distance cases, and the chamfer side cases. The overlap distance cases locate the successful engagement position. The chamfer side cases investigate the effect of the system geometry and consider two cases. The results show that the chamfer angle has a negative effect on the dog clutch shiftability. Some geometric parameters show a different effect on the engagement probability for the rectangular tooth and chamfered tooth cases, and this behaviour is also analysed.},
	year = {2023},
	eissn = {2064-7522},
	pages = {12-27},
	orcid-numbers = {Aljawabrah, Ayham/0000-0002-7537-6358; Lovas, László/0000-0001-6710-9084}
}

@article{MTMT:33683175,
	title = {Dynamic Modeling of the Dog Clutch Engagement Process Using Hybrid Automata},
	url = {https://m2.mtmt.hu/api/publication/33683175},
	author = {Aljawabrah, Ayham and Lovas, László},
	journal-iso = {JJMIE},
	journal = {JORDAN JOURNAL OF MECHANICAL AND INDUSTRIAL ENGINEERING},
	volume = {17},
	unique-id = {33683175},
	issn = {1995-6665},
	year = {2023},
	pages = {127-138},
	orcid-numbers = {Aljawabrah, Ayham/0000-0002-7537-6358; Lovas, László/0000-0001-6710-9084}
}

@article{MTMT:33648589,
	title = {Súrlódás változása csavarkötésben többszöri meghúzás esetén (Friction variation in a bolted joint during cyclic tightening)},
	url = {https://m2.mtmt.hu/api/publication/33648589},
	author = {Alsardia, Talal and Lovas, László},
	journal-iso = {GÉP},
	journal = {GÉP},
	volume = {LXXIV},
	unique-id = {33648589},
	issn = {0016-8572},
	year = {2023},
	pages = {5-8},
	orcid-numbers = {Alsardia, Talal/0000-0003-2528-548X; Lovas, László/0000-0001-6710-9084}
}

@article{MTMT:33647317,
	title = {Kinematical model of the dog clutch shifting},
	url = {https://m2.mtmt.hu/api/publication/33647317},
	author = {Aljawabrah, Ayham and Lovas, László},
	journal-iso = {GÉP},
	journal = {GÉP},
	volume = {LXXIV},
	unique-id = {33647317},
	issn = {0016-8572},
	year = {2023},
	pages = {9-12},
	orcid-numbers = {Aljawabrah, Ayham/0000-0002-7537-6358; Lovas, László/0000-0001-6710-9084}
}

@article{MTMT:33216041,
	title = {EFFECT OF LUBRICATION DURING CYCLIC TIGHTENING ON THE BOLT PRELOAD FORCE},
	url = {https://m2.mtmt.hu/api/publication/33216041},
	author = {Alsardia, Talal and Lovas, László},
	journal-iso = {GÉP},
	journal = {GÉP},
	volume = {LXXIII},
	unique-id = {33216041},
	issn = {0016-8572},
	abstract = {This paper investigates how repeated tightening and loosening affect the generated preload in a bolted joint. Experiments were conducted on a zinc-coated bolt with three different diameter sizes. The torque tension relationship was compared experimentally of four lubrication types based on the torque coefficient factor},
	year = {2022},
	pages = {88-91},
	orcid-numbers = {Alsardia, Talal/0000-0003-2528-548X; Lovas, László/0000-0001-6710-9084}
}

@article{MTMT:33206515,
	title = {DYNAMIC MODELING OF AN ELECTROMECHANICAL GEARSHIFT ACTUATOR},
	url = {https://m2.mtmt.hu/api/publication/33206515},
	author = {Aljawabrah, Ayham and Lovas, László},
	journal-iso = {GÉP},
	journal = {GÉP},
	volume = {LXXIII},
	unique-id = {33206515},
	issn = {0016-8572},
	year = {2022},
	pages = {19-22},
	orcid-numbers = {Aljawabrah, Ayham/0000-0002-7537-6358; Lovas, László/0000-0001-6710-9084}
}

@inproceedings{MTMT:33206041,
	title = {Study of the dog clutch shiftability},
	url = {https://m2.mtmt.hu/api/publication/33206041},
	author = {Aljawabrah, Ayham and Lovas, László},
	booktitle = {VII. Gépészeti Szakmakultúra Konferencia},
	unique-id = {33206041},
	year = {2022},
	orcid-numbers = {Aljawabrah, Ayham/0000-0002-7537-6358; Lovas, László/0000-0001-6710-9084}
}