Grating spacingcalculator

A grating consists of many slits, or lines, close together. In a grating, the spacing between adjacent lines is constant.

The vertex of the hole should be selected as contact side and the surface can be selected as target side if you doing an MPC connection (or follow for the same as per the fixed connection). You need to give the same definition to both ends of the screw(not one side).

Grating spacinggraph

For other orders of maxima, the relationship between the wavelength of light \(\lambda\) and angle \(\theta\) is shown by the equation:

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Grating spacingformula

Gratings are also used to produce interference patterns. When waves are incident on a grating all of the lines act as coherent sources of the waves.

I use beam element to simulte screw in ansys mechanical. The scope in reference and that in mobile I have selected are shown in figs below. However, the length of the generated beam element is shorter than the length of the screw shank. As you see in the second picture, the end of the beam element has not reached the end of the blue face, which should be the real end of the screw. could any one tell me why? Many thanks!

Thank you very much for your reply. However, my situation is somewhat different from what's shown in the video. In my case, it's a screw, whereas the video deals with a bolt. The length of the bolt is longer than the combined thickness of two parts which are connected this bolt, so it can be set the same way on both sides. But for the screw in my case, only one end is outside the parts, so it seems I can't give the same definition to both ends of the screw.

Compared to a double slit, the interference pattern produced by a grating has fewer, more widely spaced points of maximum intensity.

Constructive and destructive interference can be explained in terms of phase and path difference. Interference patterns can be calculated using wavelength, grating spacing and angle of maxima.