Creating wave effect in Illustrator

Question

How might I go about creating a wave pattern like the attached reference?

I was thinking a 'move-copy' approach. But was wondering if there was something simpler. I'm not too familiar with Illustrator so would love some guidance.

What I'm looking for is vertical 2px lines running in a row then the wave effect.

Answer 1

Create the stroke unit:

Put a stroke alined at each side of the blue rectangle:

Select them and go to menu Object > Blend > Make

Create the Wave Path:

Select the blend ant the Wave Path and go to menu Object > Blend > Replace Spine

Menu Object > Blend > Blend Options > Specified Steps

If it is necessary to modify the distance between the sticks, regulate the vector points handles:

To replicate the waves make new blends or duplicate the original and transform the Spine Path selecting it with the Direct Selection Tool + Alt to get the whole path. In the Gif image it is flipped vertically:

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Once you have all the waves, the recommendation is to put each of them in a different layer and continue working independently.

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To change the strokes length, create the Cut Path, or duplicate the Spine Path from the next lower blend:

Select the blend, menu Object > Blend > Expand

Select the blend group together with the Cut Path and choose the Shape Builder Tool:

Pressing Alt delete the excess part of each path and reverse the path direction from the Stroke Panel

Select the sticks, menu Object > Ungroup and Distribute horizontaly