Endurance limit of the axial-piston hydraulic machine cylinder block

• Autorzy: Khomiak Yuriy , Kibakov Oleksandr , Medvedev Stanislav , Nikolenko Ilya , Zheglova Victoria

Identyfikatory

DOI

10.29354/diag/116691

• Języki publikacji: EN

Abstrakty

EN

The fatigue resistance of the cylinder block (CB) of an axial-piston hydraulic machine (APHM) made of tin bronze CuSn12 has been investigated. Fatigue tests of smooth and notched standard samples were performed and fatigue curves were constructed. The stress state of the CB is investigated by the finite element method. It is established that the maximum stresses are localized on a small part of the partition between axial cylinders holes loaded by internal pressure. A method for recalculating the established length of this zone of partition with an uneven distribution of dangerous stresses by an equivalent length with a constant stress equal to the maximum is proposed. The use of the statistical theory of the similarity of the fatigue failure of Serensen-Kogayev, the results of the fatigue tests of the samples and the calculation of the equivalent length made it possible to determine the endurance limit of the CB considered. The acceptability of the proposed method estimating the endurance limit by the known results of resource tests of the CB APHM 210.25 is confirmed.

Słowa kluczowe

EN

complex stress state; finite element method; fatigue fracture similarity criterion; fatigue curves of tin bronze CuSn12

PL

złożony stan naprężeń; maszyna hydrauliczna; metoda elementów skończonych; krzywe zmęczeniowe; wytrzymałość

• Wydawca: Polskie Towarzystwo Diagnostyki Technicznej
• Czasopismo: Diagnostyka
• Rocznik: 2020
• Tom: Vol. 21, No. 1
• Strony: 71--79
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Khomiak Yuriy

• Odessa National Polytechnic University, Ukraine

autor

Kibakov Oleksandr

• Odessa National Maritime University, Ukraine

autor

Medvedev Stanislav

• Odessa National Maritime University, Ukraine

autor

Nikolenko Ilya

• Academy of Construction and Architecture, "V.I. Vernadsky Crimean Federal University"

autor

Zheglova Victoria

• Odessa National Polytechnic University, Ukraine

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).