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Post by hawkwind on Jan 3, 2009 0:57:12 GMT -5
hi does anyone know of engineering sources ,books ,web sites etc. where I can obtain specific information pertinent to trikes , particularly about chassis geometry ,Cof G placement , length /width ratios , road holding ,stability etc cheers Gary
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okflyboy
Junior Member
si vis pacem, para bellum
Posts: 10
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Post by okflyboy on Jan 3, 2009 2:06:52 GMT -5
hi does anyone know of engineering sources ,books ,web sites etc. where I can obtain specific information pertinent to trikes , particularly about chassis geometry ,Cof G placement , length /width ratios , road holding ,stability etc cheers Gary Here's and article by Robert Riley (designer of the Tri-Magnum and XR3 RTs) that discusses some of the info you mentioned. Mr. Riley has also written a book on the subject but I haven't read it so I cannot tell you how detailed it gets. Ara edit: I didn't get the link right the first time but it appears to be working now.
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Post by F3W on Jan 3, 2009 13:36:38 GMT -5
Though I am not an engineer, what I can tell you is that from what I have read over the years on how to build a stable RT...the basic rule of thumb is to try and build the perfect triangle...this means that the distance between the front wheels will be the distance to the rear wheel...this distance can be stretched but not outside the wheels diameter...this will give you the safest design...I will try to find that info and post it here
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Post by F3W on Jan 3, 2009 14:31:18 GMT -5
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Post by hawkwind on Jan 3, 2009 21:42:42 GMT -5
thanks for your responses so far ,is there any engineering site or book/s that deal with this type of vehicle that is available? as i do need to go into the physics & math ,some explanation ,I choose the 2F1R platform because it caters very well to the most efficient subsonic aerodynamic shape being the tear drop ,my overriding concern is aerodynamic efficiency ,the last being comfort and ease of access ,even handling is of no great concern as it will be a straight line only vehicle and steering will be limited to 10 degrees total for minor steering corrections , but dynamic stability is a major concern , I have some understanding of the concept of half track & L/H ratio , the vehicle will have as a necessity of design a long wheel base and will need to be as narrow & low as is physically possible ,to put some figures to that ,width 1 meter wide would be at the outer limit ,.height 750 mm to 800mm and length somewhere around 5meters these are the ideals and no doubt compromises will have to be made . hope I'm not boring you all to death as an aside the fastest outright land speed record is held by a reverse trike at over mach 1 thrust SCC ,look it up cheers Gary
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