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Recent content by lyletk

  1. lyletk

    AutoCAD 3D

    Volf, This is possible using the boolean logic of AutoCad 2000. I would make a copy of the model, create a large block with one edge at the midpoint of your part and the remaining block enveloping the half of your model that you do not want to see. Then subtract the block from your model...
  2. lyletk

    Angle of twist for stepped shafts

    Manian, The process is fairly simple and straight forward. The total angle of twist of a shaft is obtained by adding algebraically the angles of twist of each component part. PHI = SUMMATION(TL/GJ) PHI = ANGLE OF TWIST (in radians) T = TORQUE L = LENGTH OF SHAFT G = MODULUS OF RIGIDITY J =...
  3. lyletk

    Scan a part into digital format

    Option 1 I agree with 13. Many vendors supply engineers with CAD files via email. Its worth a try. Option 2 My company had a large aircraft panel that we needed to match a backplate with. Our machine shop used its coordinate measuring machine to locate all of the holes and perimeter cuts...
  4. lyletk

    FEA software best suited for Sold Works and honeycomb material

    I use Solidworks and the best FEA software to use with it is Cosmos/Works. It is designed to work from within Solidworks. It is extremely user friendly and is accurate. I have done some manual calculations to verify the Cosmosworks results and it comes out very close. You can purchase the...
  5. lyletk

    Recommend a material type for gear set.

    I have an aluminum gear from an old instrument that has worn down. I would like to reverse engineer a new gear using a higher strength material, however, I have a concern about the mass moment of inertia of the new gear. If I use steel, the mass will triple and I don't think the motor can...
  6. lyletk

    Source for Articles on comparing FEA software: ANSYS, ALGOR, COSMOs

    I am also a user of CosmosWorks from within Solidworks and I agree with KSE. It is a very user friendly FEA program. I have also used Cosmos/M 2.0 which is an expanded version of CosmosWorks. It is not as intuitive as CosmosWorks but has more capabilities. Also, Cosmos/M acts more like a DOS...
  7. lyletk

    Source for Articles on comparing FEA software: ANSYS, ALGOR, COSMOs

    You might try ASME's Mechanical Engineering Magazine. You can read it online at asme.org.
  8. lyletk

    forced vibration calculator

    I doubt if you will find any shareware that will solve this problem. It would take a respectable <br> finite element program to give you results that you could trust. These usually run in the several<br> thousands of dollars range. However, if you only need the natural frequency, the...
  9. lyletk

    Overall Bending Stiffness of a Tube Rod Assembly

    It is difficult to know for sure without knowing the end conditions, however, you seem to have a <br> condition similar to springs in parallel, eg. two extension springs side by side bearing a single<br> load. In this condition the k values are additive, k total = k1 + k2 + k3... If the rods...
  10. lyletk

    Electronic equipment cooling.

    I have an electronic device that runs off of 400 Hz power and dissipates 350 watts of heat. It has<br> a thermostatically controlled fan that kicks in to provide cooling. The problem is that the 400 Hz<br> fan is extremely loud. My plan is to duct refrigerated air into the intake opening in...

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