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).
Design and materials for a damper flywheel, focusing on friction surfaces and vibration.
| Identifier | WestWitteringFiles\R\January1928-March1928\ 126 | |
| Date | 9th March 1928 | |
| E.{Mr Elliott - Chief Engineer}) FROM R.{Sir Henry Royce} HS.{Lord Ernest Hives - Chair}) (At Le CanadelHenry Royce's French residence.) BY.{R.W. Bailey - Chief Engineer}) Copy to BJ. WOR.{Arthur Wormald - General Works Manager} FL. R3/M9.3.28. REC'D.{John DeLooze - Company Secretary} & DESPATCHED FROM WW.13.3.28. x2010 DAMPER FLYWHEEL - LeC. 2520. /634 This corrugated disc drive of the second friction plate should have an English patent, (at least provisional) in case we use it for standard, as seems very likely. Have we now got material for the surfaces that gives the right characteristic when lubricated? Can we arrange temporarily a wheel with dry surfaces, but with properly lubricated bearing, or ball or roller bearings to carry the weight of the wheel? (a) Since we/keep clear of the master period, and supposing we (b) have a friction surface (equal to dry cork, fibre, wood, or cotton canvas,) which is satisfactory when lubricated - i.e. having nearly the same co-efficient when sliding as when at rest, do we require this friction altered for the two (?) harmonics that we have to damp out? I say that with dry surfaces of suitable materials there is no advantage to alter the pressure causing the friction by any centrifugal device, providing we keep below the master period. Will HS.{Lord Ernest Hives - Chair} kindly confirm or contradict this. I believe Mr. Olley has been thanked for his information re. the Chrysler practice, which we had already learnt, also we had discussed the advantage some time ago. Possibly for an extremely high speed engine it might be an advantage. Do we know that with an 8 cyl. engine like the Stutz we can run on the speed of the master period for a long time without vibration or damage. R.{Sir Henry Royce} | ||