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).
Eliminating high-speed wobbles by adjusting damper, spring, and frame stiffness.
| Identifier | ExFiles\Box 29\1\ Scan312 | |
| Date | 14th June 1927 guessed | |
| contd :- -4- (2) If ever obstinate cases of high speed wobbles arise, it is of no use to attempt to eliminate them by increas- ing the front damper loading unless the rear of the car is also suitably damper. Open cars are also more likely to be persistent wobblers than closed cars because heavy car bodies necessitate strong springs and the whole rear of the chassis is restrained from moving torsionally on the springs. Unless the rear of the car is well damped, a stiff frame torsionally is not of much use. In any case the periodicity of normal types of frames is not in the region of high speed wobble frequency. We conceive that a stiff frame and stiff rear springs well damped would make the front dampers do the maximum amount of work, so preventing a high speed wobble from starting. Hs{Lord Ernest Hives - Chair}/W. A.{Mr Adams} Robotham. | ||