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  1. Nate1093

    Calculation of raw material and product mesh sizes for crusher in chemical process plant

    Hi, I have come across a problem in a textbook that I need some assistance with. The problem is reproduced below, and asks you to determine the power input for a crusher in a chemical process plant. The part I don't understand is 'Step 3' of the calculation procedure: Compute the...
  2. Nate1093

    Water buildup/ponding issue between rail tracks

    Has anyone encountered the issue of water buildup/ponding between rail tracks? Refer to image below, where the area between the rail tracks is a flat surface and thus prone to water ponding (water shown in blue): If so, how did you safely and quickly drain the water build-up?
  3. Nate1093

    Design moment of an embedded steel post

    I am doing a simple member design of a horizontally loaded steel post embedded in the ground. The ground conditions are assumed to be damp/sandy clay with a bearing capacity of up to 150 kPa. This is an Australian situation so I am referring to AS/NZS 4746 - Structural design requirements for...
  4. Nate1093

    How would you calculate the amount of power utilized in a typical coal mining process?

    Suppose you have a typical coal mining process composed of the following steps: (1) Excavation -> (2) Crushing -> (3) Storage -> (4) Rail -> (5) Power Station The idea is the coal is excavated out of the ground, crushed and processed, stored, and finally transported by a diesel train to a...
  5. Nate1093

    Non destructive testing requirements for bridge cranes (Australia)

    Hi, Are the Non destructive testing requirements for bridge cranes governed entirely by AS/NZS 5131 - STRUCTURAL STEELWORK FABRICATION AND ERECTION? This involves calculation of the Construction category of the structure as per Table 13.6 of AS/NZS 5131, and referring to S.13.6.1.2 for the...
  6. Nate1093

    Optimisation of ash stockpile height to minimise haul truck diesel costs

    Hi, How would I find out the optimum height of an ash stockpile in order to minimize diesel haulage costs, for a CAT haul truck? My stockpile height is to be between 25m to 50m. I have worked out the fuel consumption and time taken from the start point to the haulage area, based on required...
  7. Nate1093

    Strand7 Modelling Question

    Hi, I’m having trouble meshing my steel frame model (model attached) and was wondering if anyone had any ideas on how to get the mesh to link up for all members. At the moment the only way I can think of doing this is just by making my mesh size really small at column/beam joint connections...

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