Rolls-Royce Archives
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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).
Calculations and diagrams for the angular rate of various mechanical systems.

Identifier  ExFiles\Box 154a\2\  scan0304
Date  16th May 1940
  
I.
ANGULAR RATE T' = dT/dθ = Wr

II.
ANGULAR RATE T' = Wb{Mr Brazier/Mr Bell}
b = da{Bernard Day - Chassis Design}/dθ ; -a = db{Donald Bastow - Suspensions}/dθ

III.
SPRING RATE S
T = Pb
T' = d/dθ (Pb)
= dP/dθ x b + db{Donald Bastow - Suspensions}/dθ x P
= dP/da{Bernard Day - Chassis Design} x da{Bernard Day - Chassis Design}/dθ x b - Pa{Mr Paterson}
= Sb{Mr Bull/Mr Bannister}^2 - Pa.{Mr Paterson}

IV.
S = rate
T' = Sb{Mr Bull/Mr Bannister}^2 - Pa{Mr Paterson} x (l+a)/l

by May 16/40.
  
  


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