Recent content by Jonathanjc

  1. J

    Pipeline structural Support loading case from riser pipeline.

    Hi all, I am trying to designing a structural pipeline support. The pipeline is at a 60 degree angle and is connected to a riser pipeline - I have the transferred loads that the pipeline will experience from the riser and have created an FBD. I initially thought the load that the support...
  2. J

    Optimizing Truss Design for Pipeline Support: Initial Analysis Methods

    I was using Fc as the pipe from the initial point Fa. I guess it wasn't really necessary to do it that way. Thanks for your input it has helped. :)
  3. J

    Optimizing Truss Design for Pipeline Support: Initial Analysis Methods

    Hi, I have attached my FBD. Fc was presumed to be 81kN which worked out and Fb came out to be -93.533kN. So the force arrow according to the FBD would flip back on its self. To me this does not look correct. Maybe this is the wrong method to use for this problem. Or maybe I missing...
  4. J

    Optimizing Truss Design for Pipeline Support: Initial Analysis Methods

    I am attempting to redesign a truss structure for a pipeline support. I would like to find out how best to go about the initial analysis. I have attached a drawing of the pipeline in question and labelled the axial force I am working with. The pipeline is at 60° and the shaded area shows the...
  5. J

    Calculus: Composite and Quotient rules. HELP

    Oh, so not turn the solution of part ai into part aii. Ok, I think I got it. Thanks
  6. J

    Calculus: Composite and Quotient rules. HELP

    I hope not, what I mean is that for part (i) I need to differentiate the function, f(x) by using the chain rule, which is f'(x) and is my solution: f'(x) = 3/2(sqrtx^2-6x+23)(2x-6) So, as far as I can see part (ii) says that my solution above has to be used with the quotient rule to find...
  7. J

    Calculus: Composite and Quotient rules. HELP

    Homework Statement Remember to show your working explicitly throughout your answer to this question. (a) (i) Use the Composite Rule to differentiate the function f(x) = (x^2− 6x + 23)^(3/2) (ii) Use the Quotient Rule and your answer to part (a)(i) to show that the function: g(x) = (x −...
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