Question b Supports [Partner 1 and Partner 2 jointly do (a) (i) - 4 marks], [Partner 1 does (a) (ii)-7 marks], [Partner 2 does (b) -7 marks] Design the lug and column part of a support system similar to that shown in Fig 3.24(a) using 4 lugs [C1. 3.24.1, 3.24.2, 3.24.3.1, 3.24.7, 3.25] a) Lugs with pads Refer to the lug selection and local stress checking procedure provided at the e- reserve address given in Chapter 5 Appendix SC. The vessel will be tested hydrostatically when new with an hydraulic oil of a density of 900 +X0 kg/m where, as mentioned before, X is the last digit of the student number of the partner whose family name is nearest to the start of the alphabet. (e.g. If Bob Aardvark's number is 3256425 then the density is 900 +50=950kg/m (1) Select an appropriate sized lug and pad :) (ii) Check that local stresses are not excessive in the new condition when full of oil at the design pressure, which state of affairs will occur part way through the pressure build up part of the hydrostatic test. Use the limiting stress values suggested at the e-reserve address given in Chapter 5 Appendix 5C (Another check which is not part of this assignment would be in the corroded state, full of air at the design pressure. A further check which is not part of this assignment would be checking the stresses when the pressure has reached the full hydrostatic test pressure-pressure vessel codes usually allow higher stresses to exist during the hydrostatic test than during operation at the design pressure.