Landing gear dynamic tests with strain gages

• Autorzy: Sobieszek A. , Paprzycki I. , Tywoniuk A.

Identyfikatory

DOI

10.5604/12314005.1166030

• Języki publikacji: EN

Abstrakty

EN

Strain gage sensing is widely used method for measurements conducted during dynamic tests. This article describes electrical resistance strain gages performing force measurement during the tests of main and nose landing gear of medium-lift civil aircraft. It is the most common method used for measuring mechanical properties like force, pressure, stress, strain, etc. Strain gages were installed in selected areas of the Drop Test Stand. The paper presents advantages of strain gage measuring method in regards to commercially available, ready-made force sensors. Furthermore, it describes the process of selecting strain gage and load cell measurement systems (bridge, half bridge, quarter bridge) and its influence on the test results. What is more the technological process is presented, taking into account the strain gage installation adhesive technology and sensor protection against external conditions, performance of the measurement system and connection to the data acquisition system. Continuing with the process description of calibrating a load cell system for measuring the occurring forces. The article is summed up with an analysis of the problems which arise during the installation and measurement process using strain gages, and includes a description of advantages and disadvantages that occur while applying strain gages while preforming force measurement.

Słowa kluczowe

EN

landing gear test; dynamic test; load measurement; strain gage instrumentation; strain gage installation

• 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: 2015
• Tom: Vol. 22, No. 3
• Strony: 221--227
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Sobieszek A.

• Institute of Aviation Aviation Components and Equipment Test Department Krakowska Avenue 110/114, 02-256 Warsaw, Poland tel.: [phone] ext. 224, [phone]

autor

Paprzycki I.

• Institute of Aviation Aviation Components and Equipment Test Department Krakowska Avenue 110/114, 02-256 Warsaw, Poland tel.: [phone] ext. 224, [phone]

autor

Tywoniuk A.

• Institute of Aviation Aviation Components and Equipment Test Department Krakowska Avenue 110/114, 02-256 Warsaw, Poland tel.: [phone] ext. 224, [phone]

Bibliografia

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• [3] Roliński, Z., Tensometria oporowa. Podstawy teoretyczne i przykłady zastosowań, WNT, Warszawa 1981.
• [4] Skorupka, Z., Kowalski, W., Kajka, R., Electrically driven and controlled landing gear for UAV up to 100kg of take-off mass, ECMS 2010 conference papers, Kuala Lumpur, 2010.
• [5] Skorupka, Z., Kowalski, W., Kajka, R., Test rig prototype for testing of front landing gear electrical actuator designed for passenger aircraft, Transactions of the Institute of Aviation, 2010.
• [6] Paprzycki, I., Skorupka, Z., Laboratoryjne badania podwozi lotniczych, Transport przemy-słowy i maszyny robocze, 2014.
• [7] Paprzycki, I., Skorupka, Z., Założenia projektowe układu ABS do małego samolotu o masie startowej nieprzekraczającej 2500 kg, Logistyka 3, 2014.