From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Body shells for load reproduction, vibration damping, and the balance of springs and dampers.
| Identifier | ExFiles\Box 170\2\ img090 | |
| Date | 21th July 1931 guessed | |
| We have to use a body shell to reproduce anything like service conditions since we are still using the body to take a good share of the loads (a condition which I think entirely wrong) Anything you can tell me to help this work along would be gratefully received (to Buick damper. Timoshenko "Vibration Probs in Engineering" D.{John DeLooze - Company Secretary} Van Nostrand Co. New York, is the best book on the subject that we know. He also has taken a lot from W.S. Rowell on Riding and seems to have mastered the subject better than most. I send you a print of our damper on the '12 which I should be glad if you would regard as personal. This is at front of crankshaft on all our models & is the type you want. As you will see the friction is supplied by the leaf springs, and is relatively unimportant in quantity. (An effect which may be allied to this occur in riding of cars, namely that if the "balance" of springs and masses is right the damping ^(required, small and) is of less importance, but if the springing is not right there is just one critical point of damping which will give a bearable ride) | ||