A Solution of the Low-Speed Wheel Flutter Instability in Motorcycles

Autor:	T. E. Thorpe, G. E. Roe
Rok vydání:	1976
Předmět:	Flutter instability Engineering Low speed business.industry Work (physics) Fork (system call) General Engineering Front (oceanography) Flutter Structural engineering Mechanics business Instability
Zdroj:	Journal of Mechanical Engineering Science. 18:57-65
ISSN:	2058-3389 0022-2542
DOI:	10.1243/jmes_jour_1976_018_012_02
Popis:	Motorcycles are subject to two dynamic steering instabilities, a low-speed ‘flutter’ at 6–8 Hz. and a high-speed ‘weave’ at 2-3 Hz, both of which are increased by adding a tail load, or by decreasing the rider mass. This paper is concerned with the low-speed instability, and describes work which resulted in the elimination of this potentially dangerous phenomenon from a current large-capacity motorcycle. The cause was found to be twofold: a fundamental castor instability at the front wheel, coupled to a resonance in the upper section of the main frame. Recommendations on future frame design are made, and fundamental limitations of the ‘telescopic’ front fork are demonstrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::85b4569c73739c07e4330217391484a2 https://doi.org/10.1243/jmes_jour_1976_018_012_02 Zobrazit plný text záznamu