Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations IDS on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by eli28

  1. eli28

    Vibration Test Fixtures Design

    Hey GregLocock, thank you for your comments!
  2. eli28

    Vibration Test Fixtures Design

    3D Dave, theoretically you are right...but actually I have to take action and know what I do for avoiding a failure... after all I am responsible for that jig.
  3. eli28

    Vibration Test Fixtures Design

    Thank you all for giving me a starting point and tips. As for the question why I don't include the true tested body in the analysis, there are 2 reasons: 1. The tested body is still being designed by another group in the company I work in, and for making the design phase shorter- there is a...
  4. eli28

    Vibration Test Fixtures Design

    Can someone please answer my principal question what is the right method to analyze my case without concentrating on the schematic pictures that were meant to generally illustrate.
  5. eli28

    Vibration Test Fixtures Design

    You are right, but I am not sure you answered my question :/
  6. eli28

    Vibration Test Fixtures Design

    Hello, This is the first time I design a fixture for a vibration test, so I guess my question might be basic to most of you. I have an assembly that should be carried by a certain platform. The Vibration Spectrum of the carrying platform was measured and is given as part of the requirements. As...
  7. eli28

    Bolt and nut made of aluminum

    Thank you Sparweb, very useful information!
  8. eli28

    Bolt and nut made of aluminum

    Hey Sparweb and thank you for being care and giving advices. Is there a guide/article etc. that lists which compounds/lubricants contact with titanium is forbidden (and perhaps learning why and what are the risks of using these materials)? I have some manufactured titanium parts with internal...
  9. eli28

    Bolt and nut made of aluminum

    Thank you all. I will use titanium screws rather than Aluminum. I am still not sure about titanium seizure risk. Try to figure out through some articles.
  10. eli28

    Bolt and nut made of aluminum

    This is for a carried device by an aircraft
  11. eli28

    Bolt and nut made of aluminum

    After reading all of your advices I understand that titanium is preferable. I still have 2 uncertainties regarding using titanium: 1. Is there a risk of cold welding when using titanium bolt and titanium nut without any special coating?According to this website, there is a risk of cold welding...
  12. eli28

    Bolt and nut made of aluminum

    Do you have any recommendation to a coating that can prevent galling? I have in addition to apply a locking element such as patch.
  13. eli28

    Bolt and nut made of aluminum

    Hey, Do you have a known manufacturer of titanium screw? Do you have a recommendation to an anti seize compound?
  14. eli28

    Bolt and nut made of aluminum

    Hello everyone I have to decrease weight in my assembly. One of the suggestions is using aluminum bolts rather than using low-medium carbon steel. I checked if it's possible when considering strength, and it's indeed possible if I increase the bolt's size (and I still lose weight). The point is...
  15. eli28

    Disk Spring for thermal effects compensation

    Hey, the loads are in both directions. It means the joint experiences tensile and compressive force. About the tolerance in preload when using the traditional torque meter - I am also worried about it and I am sure the suggested solution given above is excellent. Now is the difficult part -...

Part and Inventory Search