Results 191 to 200 of about 6,615 (259)
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Mechanics of Solids, 2013
Shimmy is the phenomenon of intensive angular self-excited vibrations of a vehicle wheel. Such self-excited vibrations seriously threaten the safety ofmotion, which explains scientists’ profound interest in this phenomenon. This problem is most serious for the front wheels of aircraft.
V. Ph. Zhuravlev +2 more
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Shimmy is the phenomenon of intensive angular self-excited vibrations of a vehicle wheel. Such self-excited vibrations seriously threaten the safety ofmotion, which explains scientists’ profound interest in this phenomenon. This problem is most serious for the front wheels of aircraft.
V. Ph. Zhuravlev +2 more
openaire +1 more source
Nonlinear shimmy and dynamic bifurcation in vehicle system with driver steering input
Proceedings of the Institution of mechanical engineers. Part D, journal of automobile engineeringBased on the dynamic coupling analysis of the front wheel shimmy and vehicle plane motion, a three degrees of freedom (DOF) nonlinear shimmy model considering driver steering input is established. Firstly, when the driver steering input is not considered,
Heng Wei +3 more
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IEEE Transactions on Transportation Electrification
This article investigates the search for architecture solutions to a novel shimmy reduction subsystem in the nose wheel steering system (NWSS) of all-electric aircraft (AEA). Since the traditional trial-and-error and empirical methods are inefficient and
Chenfei She +3 more
semanticscholar +1 more source
This article investigates the search for architecture solutions to a novel shimmy reduction subsystem in the nose wheel steering system (NWSS) of all-electric aircraft (AEA). Since the traditional trial-and-error and empirical methods are inefficient and
Chenfei She +3 more
semanticscholar +1 more source
Research and Analysis of Coulomb Friction in Landing Gear Shimmy
Journal of AircraftAircraft are subject to small disturbances during taxiing, many of which are accidental and difficult to explain. Although nonlinear factors are considered in traditional analysis, Coulomb friction is generally ignored, and the interaction and common ...
Shuang Ruan, Ming Zhang, Hong Nie
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Aircraft Nose Gear Shimmy Studies
SAE Technical Paper Series, 1993<div class="section abstract"><div class="htmlview paragraph">An overview of previous studies involving aircraft nose gear shimmy behavior is given together with some test results identifying the influence of different factors inducing shimmy. A NASA Langley test program conducted at the Landing Loads Track (LLT) facility to evaluate shimmy
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Analysis of the Shimmy Phenomenon
Proceedings of the Institution of Mechanical Engineers: Automobile Division, 1965The shimmy phenomenon has been treated as a non-linear problem which is solved using the method of equivalent linearization and also with the aid of an analogue computer. Three non-linear elements are considered: the tyre characteristics, the Coulomb friction in the king-pin bearings, and clearance in the wheel bearings. The theory is substantiated by
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Analysis of the shimmy in the landing gear of a general-purpose helicopter for different payloads
Journal of Physics: Conference SeriesLanding gears, which are designed to absorb impact energy in order to provide support to the aircraft during landing, take-off and ground operations, are important components of the structure. Shimmy, which is one of the causes of aircraft failures, is a
B. Akkaya, H. Bal
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Improved Landing Gear Shimmy Model
SAE International Journal of Aerospace, 2015<div class="section abstract"><div class="htmlview paragraph">This report introduces a new conceptual model to study aircraft landing gear shimmy (LG-Shimmy). The new formulation offers the engineering analysts an improved LG representation allowing better ability to capture aircraft landing gear shimmy behaviour.
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Journal of College of Physical Education
تكمن مشكلة البحث في وجود ضعف في القابليات البيو حركية والخاصة القوة المميزة بالسرعة والتوازن الحركي للاعبي كرة السلة تحت 18سنة وارتباطها واهميتها المباشر بأداء المهارات الهجومية المركبة ،وان رفع المستوى التدريبي لكل لاعب لا يمكن النهوض به سواء أكان ...
Ali Ishahab Abdel Hussein +2 more
semanticscholar +1 more source
تكمن مشكلة البحث في وجود ضعف في القابليات البيو حركية والخاصة القوة المميزة بالسرعة والتوازن الحركي للاعبي كرة السلة تحت 18سنة وارتباطها واهميتها المباشر بأداء المهارات الهجومية المركبة ،وان رفع المستوى التدريبي لكل لاعب لا يمكن النهوض به سواء أكان ...
Ali Ishahab Abdel Hussein +2 more
semanticscholar +1 more source
Experimental study on steering wheel shimmy of the vehicle
Other ConferencesSteering wheel shimmy often occurs when the vehicle is driving, which affects both riding comfort and driving safety. This article is to find out the reasons through the tests on wheel positioning, wheel dynamic balance, steering gear, and wheelbase ...
Bin Wang
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