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).
Page of formulas for calculating comparative stresses, deflection, and rate in springs.
| Identifier | ExFiles\Box 52\1\ Scan181 | |
| Date | 31th January 1929 guessed | |
| -2- Contd. Comparative stresses in two springs are as C, d, δ, / D, 2 n : C2 d2 δ2 / D2^2 n2 _____________ W / 2 = π / 16 d^3 f = π / 16 d^3 * C d / D^2 n δ = (8 D^3 n W) / (C d^4) W = (C d^4 δ) / (8 D^3 n) Rate = W / δ = (C d^4) / (8 D^3 n) _____________ Contd. | ||