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  • Users: mattyjb88
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  1. mattyjb88

    Cast Iron Allowable Hertzian Stress

    Hi All. I am working with a problem of a cast iron wheel rolling on a cast iron track (two different grades). This problem is well defined for steel materials, but I have not tackled it before with cast iron. This is an old 1950's piece of equipment. My gut feel is that the allowed hertzian...
  2. mattyjb88

    Meehanite Grade E

    Hello All I have some existing castings manufactured circa 1955 which drawings indicate are Meehanite Grade E. I'm fairly sure the castings were completed in England, by or through Ransomes & Rapier. The modern Meehanite grades are completely different, and it is exceedingly difficult to find...
  3. mattyjb88

    Assessment of split-pitch (Fellows?) gears

    Hello all. I have not done a lot of gear design/assessment, however a project requires I check the capacity of some existing straight-cut spur gears - so here goes. One set of gears is defined as "4/5 D.P. stub teeth". After some head scratching and research I gather this is a split-pitch...
  4. mattyjb88

    Beam Tension Flange Restraint (Eurocode)

    Hi All, hoping for a little guidance here. I am assessing a hydraulic gate which essentially comprises several 24"x7-1/2" horizontal I-Beams rivetted (it's old) to a 1/2" steel skin plate. Span is ~7 m, the ends are arranged such that its essentially simply supported. Hydraulic loading is such...
  5. mattyjb88

    Plotting Reaction Force Relationship

    I am running Solidworks Simulation Professional 2023. I am assessing a simple hydraulic gate which is subject to several different horizontal loads. The gate is supported on either side by a vertical line reaction (think of a plate simply supported at its outer edges). I want to find a way of...
  6. mattyjb88

    Hysteresis Plot - Adding an Average

    Hello all I have what I think is a basic question - here's hoping someone can point me in the right direction. I am plotting stress measured by strain gauges against position for a piece of equipment. The stress follows a typical hysteresis curve. For my analysis I need to add a mean stress...
  7. mattyjb88

    Lifting Chain Idler Pulley Design

    Hi all I am completing a design check for a lifting chain idler pulley. The client is wanting to move to a stainless steel chain which is of slightly different dimensions to the original chain. I am struggling to find design guidelines for the design of this type of pulley. I gather this...
  8. mattyjb88

    Standard Camlock Fitting Dimensions

    I am currently working on a design for a stilling chamber (or more accurately a by-pass chamber) for a guided wave radar level sensor. I am wanting to use camlock fittings as they make dissembling and assembling so simple. I am working on a 3D model however I am finding it impossible to find...

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