Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile
2023
Аутори
Atanasovska, IvanaMomčilović, Dejan B.
Lazović, Tatjana
Marinković, Aleksandar
Soldat, Nataša
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
During the last few decades, the requirements for modern machine elements in terms of size reduction, increasing the energy efficiency, and a higher load capacity of standard and non-standard gears have been very prevalent issues. Within these demands, the main goals are the optimization of the gears’ tooth profiles, as well as the investigation of new tooth profile designs. The presented design idea is based on the optimal solutions inspired by nature. Special attention is paid to the new design of the tooth root zones of spur gears in order to decrease the stress concentration values and increase the tooth root fatigue resistance. The finite element method is used for stress and strain state calculations, and the particular gear pair is modeled and optimized for these purposes. For tooth root strength analysis, the estimations are based on the theory of critical distances and the stress gradients obtained through finite element analysis. The obtained stress gradients have shown impor...tant improvements in the stress distribution in the transition zone optimized by biomimetics. An analysis of the material variation influence is also performed. Based on the investigations of a particular gear pair, a significant stress reduction of about 7% for steel gears and about 10.3% for cast iron gears is obtained for tooth roots optimized by bio-inspired design.
Кључне речи:
biomimetics / cylindrical gears / tooth root design / fatigue resistance / finite element analysis / theory of critical distancesИзвор:
Biomimetics, 2023, 8(3), 308-Издавач:
- MDPI AG, Basel, Switzerland
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200029 (Математички институт САНУ, Београд) (RS-MESTD-inst-2020-200029)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200012 (Институт за испитивање материјала Србије - ИМС, Београд) (RS-MESTD-inst-2020-200012)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200105 (Универзитет у Београду, Машински факултет) (RS-MESTD-inst-2020-200105)
Институција/група
Mašinski fakultetTY - JOUR AU - Atanasovska, Ivana AU - Momčilović, Dejan B. AU - Lazović, Tatjana AU - Marinković, Aleksandar AU - Soldat, Nataša PY - 2023 UR - https://machinery.mas.bg.ac.rs/handle/123456789/6913 AB - During the last few decades, the requirements for modern machine elements in terms of size reduction, increasing the energy efficiency, and a higher load capacity of standard and non-standard gears have been very prevalent issues. Within these demands, the main goals are the optimization of the gears’ tooth profiles, as well as the investigation of new tooth profile designs. The presented design idea is based on the optimal solutions inspired by nature. Special attention is paid to the new design of the tooth root zones of spur gears in order to decrease the stress concentration values and increase the tooth root fatigue resistance. The finite element method is used for stress and strain state calculations, and the particular gear pair is modeled and optimized for these purposes. For tooth root strength analysis, the estimations are based on the theory of critical distances and the stress gradients obtained through finite element analysis. The obtained stress gradients have shown important improvements in the stress distribution in the transition zone optimized by biomimetics. An analysis of the material variation influence is also performed. Based on the investigations of a particular gear pair, a significant stress reduction of about 7% for steel gears and about 10.3% for cast iron gears is obtained for tooth roots optimized by bio-inspired design. PB - MDPI AG, Basel, Switzerland T2 - Biomimetics T1 - Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile IS - 8(3) SP - 308 DO - doi.org/10.3390/biomimetics8030308 ER -
@article{ author = "Atanasovska, Ivana and Momčilović, Dejan B. and Lazović, Tatjana and Marinković, Aleksandar and Soldat, Nataša", year = "2023", abstract = "During the last few decades, the requirements for modern machine elements in terms of size reduction, increasing the energy efficiency, and a higher load capacity of standard and non-standard gears have been very prevalent issues. Within these demands, the main goals are the optimization of the gears’ tooth profiles, as well as the investigation of new tooth profile designs. The presented design idea is based on the optimal solutions inspired by nature. Special attention is paid to the new design of the tooth root zones of spur gears in order to decrease the stress concentration values and increase the tooth root fatigue resistance. The finite element method is used for stress and strain state calculations, and the particular gear pair is modeled and optimized for these purposes. For tooth root strength analysis, the estimations are based on the theory of critical distances and the stress gradients obtained through finite element analysis. The obtained stress gradients have shown important improvements in the stress distribution in the transition zone optimized by biomimetics. An analysis of the material variation influence is also performed. Based on the investigations of a particular gear pair, a significant stress reduction of about 7% for steel gears and about 10.3% for cast iron gears is obtained for tooth roots optimized by bio-inspired design.", publisher = "MDPI AG, Basel, Switzerland", journal = "Biomimetics", title = "Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile", number = "8(3)", pages = "308", doi = "doi.org/10.3390/biomimetics8030308" }
Atanasovska, I., Momčilović, D. B., Lazović, T., Marinković, A.,& Soldat, N.. (2023). Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile. in Biomimetics MDPI AG, Basel, Switzerland.(8(3)), 308. https://doi.org/doi.org/10.3390/biomimetics8030308
Atanasovska I, Momčilović DB, Lazović T, Marinković A, Soldat N. Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile. in Biomimetics. 2023;(8(3)):308. doi:doi.org/10.3390/biomimetics8030308 .
Atanasovska, Ivana, Momčilović, Dejan B., Lazović, Tatjana, Marinković, Aleksandar, Soldat, Nataša, "Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile" in Biomimetics, no. 8(3) (2023):308, https://doi.org/doi.org/10.3390/biomimetics8030308 . .