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).
Continued memorandum discussing resonant periods in wheels and the effect of friction.
| Identifier | ExFiles\Box 28\4\ Scan156 | |
| Date | 24th July 1915 guessed | |
| To R.{Sir Henry Royce} from Da.{Bernard Day - Chassis Design} Copy to J.{Mr Johnson W.M.} -4- Da{Bernard Day - Chassis Design}2/G6715 Contd. destroys them on the car in all cases, except where a resonant period is struck, and in this case they die out, if the wheel is released, that is, if a lot of friction is called into play. I had intended for some time to work this matter out thoroughly, but as all the forces involved are very complicated, it would appear to call for a considerable amount of time. In view of the experiment suggested in your note, I thought the above might prove useful. Da.{Bernard Day - Chassis Design} | ||