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  • Users: Noor
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  1. Noor

    Electro-Chemical stripping of Chrome Plating

    Hi all, I am looking at two processes specified for electro-chemical stripping of chrome plating from steel parts. One is from the parts OEM and the other is per MIL-STD-871. The two processes are very similar, except that the OEM uses a solution of sodium carbonate 6.5 oz/gal, while...
  2. Noor

    LN9037 Bolts

    Hello, I am looking for a non-magnetic (stainless steel) substitute for a LN9037 metric bolt. This a German Aerospace specification, steel, hex head bolt used on many European aircraft (Diamond, Grob, Extra...). For North American aircraft, the situation would be replacing an AN3 steel bolt...
  3. Noor

    Location of pin support on beam

    Hello everyone, I'm looking at the design of beam that is pinned-pinned beam with a uniform load distribution. The beam is built-up from a thin web with two extrusions fastened to the upper and lower edges of the web to form the beam caps. The beam will be assembled to the rest of the...
  4. Noor

    Limit Loads & SCFs vs Ultimate Loads

    Hello all, It is well known that the stress concentration factor at a hole in a tension coupon can reach 3 times the average stress, while the stresses are still within the linear elastic range for the material. When the material begins to plastically deform, then the stress field begins to...
  5. Noor

    AutoCAD Moment of Inertia Calculator

    Hello everyone, I'm looking for a good (low-cost... prefereably no-cost) moment of inertia calculator routine for autocad. Does anyone know of one?
  6. Noor

    Looking for Wortman FX-66 H159 Airfoil coordinates

    Hello everyone, I have been asked to try and find coordinates for the airfoil subject above. I have found many versions of the FX-66 airfoil, but I cannot locate anything about the H159 variant. If anyone has any information about this airfoil, or knows where I can find it, please let me...
  7. Noor

    Area Moment of Inertia for Wood/Ply Spar

    Hey Guys, I am in the process of doing a stress analysis on a wood wing spar with a composite construction of plywood web with four spruce spar caps. I'm finding out that the analysing structures built from wood is not as "trivial" as those made from metal. Perhaps some of you composite...
  8. Noor

    magnetic center of motor

    we are using ansaldo motor of following specification: 6.3 KV,493 rpm,129 amp,1MW power. the motor is using sleeve bearing with max. temperature of 75 C.The shaft of motor changes its position when we strart it i.e it comes out approx. 12mm when we start it (in discouple form).We call this...

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