Sae Transactions Volume 10, PT. 2 by Society of Automotive Engineers
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Author: Society of Automotive Engineers
Number of Pages: 156 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: Englishhttps://d39ttiideeq0ys.cloudfront.net/assets/images/book/large/9781/2361/9781236126023.jpg
Format: Pdf
ISBN: 9781232150671
File Name: Sae.Transactions.Volume.10,.PT..2.pdf
Download Link: Sae Transactions Volume 10, PT. 2
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...of the rear spring, and the deflection of the front spring should be determined from the deflection of the rear spring, the rear suspension should be laid out first. Having reached this far, the rest will be easy." It would be interesting to the Society and particularly those who have to do with spring design, if the author would go into more detail with reference to this statement. Has he developed any formula giving a fixed relation between the deflection of front and rear springs? I heartily agree with the author in his closing statement that motor car engineers give too little attention at the time of designing a car to the question of springs. The practice is all too prevalent to layout a car on the drawing-board and then put the springs in whatever place may be left for them. C. H. Gleason: --Mr. McMahon seems to arrive at the conclusion that the spring designers dictate the speed of the car. This is exactly opposite to the fact. The speed at which the engineer desires the car to run under the most favorable conditions governs the deflection of the front springs. I did not make myself fully understood by Mr. McMahon in regard to slam. If the wheels of a car go over an obstruction 4" high or into a hole 4" deep without materially changing the position of the chassis frame, the spring, providing the speed of the car is average, will take, in addition to the natural deflection, a deflection which I style slam. The amount of that slam will be governed largely by the type of spring, running from 12% to 25 per cent of the initial deflection. The next criticism is as to the reaction of the spring. What I meant by the reaction of the spring was the returning of that spring to the carrying point after it had sustained a shock. The reaction of the...
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