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Does anyone have information on Double Half Sine Pulse Testing? I have undertaken testing to Half-sine-pulse profiles before to UK and US Standards, but have never come across Double-half-sine-pulse testing. Also does anyone have information on Shock design response spectra? Cheers. Martyn Brett

The grub screws I'm working with at the moment are stainless steel grub screws in a brass insert. Martyn Brett

Does anyone know where I can get information on screw torques for standard metric grub screws. As they do not have a conventional screw head I have a feeling that standard screw torque equations will not work. At present I am looking at cup point grub screws. Als is there any information out...

Does anyone know where I can get information on screw torques for standard metric grub screws. As they do not have a conventional screw head I have a feeling that standard screw torque equations will not work. At present I am looking at cup point grub screws. Als is there any information out...

How do I calculate the vibrational load on a dowel if the endurance random vibration profile is a steady 3.22 Grms? Martyn Brett

MIL-HDBK-2164A ESS Process fo Electronic Engineering (for guidance only). - available at http://astimage.daps.dla.mil Tri-Service Technical Brief 002-93-08 Environmental Screening.

Thanks for you quick responses the constant displacement figure is stated as part of a sinusoidal sweep. The rest of the sweep is stated in G. Sorry, not Grms. Cheers ;-)

MIL-HDBK-2164A ESS Process fo Electronic Engineering (for guidance only). Tri-Service Technical Brief 002-93-08 Environmental Screening.

Is it possible to calculate a relationship between constant displacement within a specific frequency range and Grms. If so how.