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).
Crankshaft analysis showing calculations for loads and slopes with and without balance weights.
| Identifier | ExFiles\Box 115\2\ scan0384 | |
| Date | 3rd April 1935 guessed | |
| - 6 - For crankpin load EI dy{F R Danby}/dx = 0.87 F.{Mr Friese} For balance weight load EI dy{F R Danby}/dx = 0.645 F dy{F R Danby}/dx In line of web. 1.15 x 10^-7 F } for crank loads. 1/I " " " 5.98 x 10^-8 F } In " " " 8.53 x 10^-8 F.{Mr Friese} for balance weight loads. Slope due to balance weights 8.53 x 10^-8 x 1760 = .00015 Results without balance weights. 2600 - 179 MEP. 2600 - 206 MEP. Loads. Radial 3795 4995 5685 6935 Tangential 6483 5185 7403 6105 Slopes. Radial .000436 .000575 .000654 .000797 Tangential .000388 .00031 .000442 .000365 Resultant .000583 .000653 .000789 .000875 with balance weights. Slopes. Radial .000586 .000725 .000804 .000947 Tangential .000388 .00031 .000442 .000365 Resultant .000704 .000789 .000917 .001018 The results in practice should lie between these and those of the previous paragraph and momentary slopes of .001" per inch will occur under the gas load at the time of the peak pressure. ---------- | ||