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An oleo strut is an pneumatic air–oil hydraulic shock absorber used on the landing gear of most large aircraft and many smaller ones.〔(Van Sickle, Neil D., Welch, John F, Bjork, Lewis and Bjork, Linda, "Van Sickle's modern airmanship." ) Page 125. Retrieved March 12, 2011〕 This design cushions the impacts of landing and damps out vertical oscillations. It is undesirable for an airplane to bounce on landing - it could lead to a loss of control.〔https://www.faasafety.gov/gslac/ALC/course_content.aspx?cID=34&sID=170&preview=true〕 The landing gear should not add to this tendency. A steel coil spring will store impact energy and then release it - the impact energy being the force of the airplane hitting the ground. An oleo strut absorbs this energy, reducing bounce.〔http://club66pro.com/documents/oleoniu.pdf〕 As the strut compresses, the spring rate increases dramatically, because the air is being compressed, while the viscosity of the oil dampens the rebound movement〔http://flighttraining.aopa.org/magazine/2004/November/200411_Features_Revere_the_gear.html〕〔http://www.p28b.com/node/465〕 The largest cargo airplanes in the world, like the Antonov An-124 Ruslan, use oleo struts to allow for rough-field landing capacity with a payload of up to 150 tons. This design also cushions the airframe from the impacts of taxiing.〔(Woodhouse, Mary and Gifford, Scott "How to make your airplane last forever," ) Tab Books, 1996, Page 75. ISBN 978-0-07-071704-6. Retrieved March 12, 2011〕 ==History== Oleo struts have been in use for many decades.〔http://club66pro.com/documents/oleoniu.pdf〕 Oleo-pneumatic shock absorber technology has continued to be refined, for example with US patent 2959410 A in 1960).〔http://www.google.sc/patents/US2959410〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「oleo strut」の詳細全文を読む スポンサード リンク
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