Wszystkie pola: pin clearance - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Study on the influence of pin shaft clearance on the bearing performance of the hydraulic support
Autorzy:: Shunyi, Du
Yang, Yang
Powiązania:: https://bibliotekanauki.pl/articles/28328269.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:: bearing capacity
orthogonal test
hydraulic support
pin clearance
multi-clearance coupling
Opis:: The pin clearance is a significant factor affecting the bearing capacity of the hydraulic support, but the effect of the pin clearance is often neglected in the current studies. Therefore, on the basis of considering the Equal stiffness spring damping system of the column, the dynamic simulation model of the hydraulic support without clearance was constructed to study the static bearing capacity of the hydraulic support. Moreover, as per the contact model of the connectingpin clearance, the dynamic simulation model of the single-pin clearance hydraulic support was established. The effect of single pin clearance on the load of the front and rear columns of the hydraulic support and the transmission force at key bearing points was analyzed. Meanwhile, the influence of single pin clearance at different positions on the bearing capacity of the hydraulic support was compared. Through the design of orthogonal test, the change of the transmission force of the bearing points under the coupling of multi-pin clearance was studied.
Źródło:: Eksploatacja i Niezawodność; 2023, 25, 4; art. no. 174367
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Numerical investigation of a landing gear system with PIN joints operating clearance
Autorzy:: Krasoń, W.
Małachowski, J.
Sołtysiuk, J.
Powiązania:: https://bibliotekanauki.pl/articles/246952.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: landing gear
joints operating clearance
finite element method (FEM)
numerical simulation
Opis:: In this paper, FE method is applied to determine an operating clearance influence on the dynamics of a military transport aircraft landing gear. The numerical analysis results presentation of two-dimensional landing gear model drop tests using MSC Working Model code is also shown. Numerical results agree well with respective experimental investigation ones. The analyses using two-dimensional rigid model were performed to correlate a numerical characteristic of a shock absorber substitute model with real shock absorber characteristic. A fully deformable spatial discrete FEM model of the landing gear was developed for precise analyses aimed at determining a joint clearance influence on a considered mechanical system dynamics. Calculations were performed using the so-called direct-integration procedure, colloquially called 'the explicit integration'. Additionally at this stage, the Rayleigh damping model has been included. The non-linear dynamic analyses were performed using the LS-DYNA code. The final part presents the comparison of drop tests numerical solution results of a landing gear with assembly clearance and with operating clearance. The advantage of developed numerical method is the possibility to determine energy changing, particular components deformations, joint contact forces, what is nearly impossible to record performing experimental investigation. The presented method is applicable for a variety of boundary condition i.e. drop velocities, aircraft effective mass, etc.
Źródło:: Journal of KONES; 2010, 17, 2; 241-248
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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