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  • Users: CraneEng87
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  1. CraneEng87

    ASTM A237 Forgings (WHO HAS IT!!)

    Hello, I need to find the material properties for a forging that was made to the ASTM A237 standard. I can't find a copy of it anywhere. Does anyone have a copy I could see? Thank you.
  2. CraneEng87

    Distributing Weight on Ground with Plate

    Hello, I need to lay a temporary crane rail down in an asphalt parking lot and plan to distribute the load using plate. I am trying to determine the usable plate width and needed thickness. I need to keep the stress into the asphalt below 3000 psf. Anyone know of a good reference for this...
  3. CraneEng87

    Ring Terminal on Terminal Block Sizing

    So this is an odd issue, one that only the Gov't could create. I landed new #12 wire on a terminal block using ring terminals. The terminal blocks were existing equipment and had #6 studs. The ring terminals I used are for 10-12 GA wire and have a #8 hole. I am being told by the Gov't that...
  4. CraneEng87

    Allowable Bearing Stress AISC

    Hello, I am using AISC Steel Construction Manual 9th Edition attempting to assess a bolted connection in shear. The manual says under Chapter J page 5-74 that the allowable bearing stress for a standard hole with two or more bolts in line of force to use the below formula. Fp = 1.2Fu Fp is...
  5. CraneEng87

    CFM Loss in an exhaust system

    Hello, I've been given a problem at work that is not in my area of expertise. I have been tasked with determining the output velocity or output flow of an exhaust system on a diesel generator. The diesel exhaust exits the manifold in a 6" diameter pipe that is connected to a 10" diameter...
  6. CraneEng87

    Calculate Acceleration of drum due to falling object

    Hello, I'm trying to work out the acceleration of a drum as a load is dropped and need to account for mass moment of inertia. I've attached a free body diagram of the system. The load is instantaneously dropped causing the drum to un-spool wire rope as the load falls to the ground. Assume...
  7. CraneEng87

    2-Piece Split Brake Disc Forces

    Hello, I am currently working on a project a little outside my comfort zone and would like some assistance in recognizing forces and stress in a particular area of a Brake Disc design. The brake disc gets mounted to a drum which is already installed and the disc must be made into 2-pieces to...

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