Advantages conferred by shock absorbers with cylindrical actuator application to landing gear

• Autorzy: Niculescu A. I. , Jankowski A. , Kowalski M. , Sireteanu T.

Identyfikatory

DOI

10.5604/12314005.1213582

• Języki publikacji: EN

Abstrakty

EN

Shock absorber with cylindrical actuator is a new concept of integrated damper with floating device, in international patent application PCT/EP2016/061515, with wide application in road, rail and aerial vehicles. Comparative to the known solution with rubber sleeves or bellows, the new one is capable to work at more increased pressure being more compact and due to metallic cylinder is more reliable. The other important advantage consists of it applicability at any kind of shock absorber without any special preparation, the solution consisting of replacing the dust shield with a pneumatic cylinder sealed against rod with a gasket and sliding closed in the lower part by sealing element/s fitted in trough/troughs practiced in an annular body fastened against the outer cylinder. For a better behaviour the patent application contains and solutions with double sliding sealing working at high pressure and thus assuring enough floating forces to sustain the vehicle without standard metallic spring so it can be utilized successfully in aerial vehicles landing gear. By using displacement and pressure transducers and equipment of control and command, it becomes an active suspension. The paper presents the double sliding sealing solution and demonstrates, by simulation the advantages confer by this new solution of shock absorber with cylindrical actuator in landing gear. This purpose was realized a virtual suspension model on which simulated hard landing for vehicle load and unload states, for different pneumatic spring preloaded forces.

Słowa kluczowe

EN

shock absorber; cylindrical actuator; simulation; comfort; load state; vehicle protection; pneumatic spring

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2016
• Tom: Vol. 23, No. 1
• Strony: 255--262
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Niculescu A. I.

• Institute of Solid Mechanics of the Romanian Academy, Department of Dynamic Systems Constantin Mille Street 15, 010141 Bucharest, Romania tel.: [phone], fax: [phone]

autor

Jankowski A.

• Institute of Aviation Al. Krakowska 110/114 02-256 Warsaw, Poland tel.: [phone], fax: [phone]

autor

Kowalski M.

• Air Force Institute of Technology 6 Ks. Boleslawa Street, Poland tel.: [phone], fax: [phone]

autor

Sireteanu T.

• Institute of Solid Mechanics of the Romanian Academy, Department of Dynamic Systems Constantin Mille Street 15, 010141 Bucharest, Romania tel.: [phone], fax: [phone]

Bibliografia

• [1] Niculescu, A. I., Shock absorbers and suspensions with trim correctors, PCT/EP2016/061515, European Patent Office, Munich 2016.
• [2] Niculescu, A. I., Jankowski, A., Kowalski, M., Sireteanu, T., On the new concept and advantages of the integrated shock absorber – air spring – “ISAS”, Proceedings of the European Automotive Congress EAEC-ESFA, Springer International Publishing, ISBN: 978-3-319-27276-4, pp 93-103, 2015.
• [3] Wikipedia, Hard landing, https://en.wikipedia.org/wiki/Hard_landing.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.