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[Question] Strip size limitation in strip theory for flutter analysis

[Question] Strip size limitation in strip theory for flutter analysis

[Question] Strip size limitation in strip theory for flutter analysis

(OP)
Hi, I am modeling a wing with strip theory for flutter analysis.

In the case of the doublet lattice method, there is a precondition that the size of the aerodynamic panel should be less than 3 at subsonic speed and an aspect ratio of 1 at transonic speed or higher.

Is there such a condition when making a strip in strip theory? Aeroelastic analysis manuals such as MSC nastran or altair, and other papers also specified the prerequisites of the box in relation to DLM, but there was no mention of the strip theory, so I asked.

Or as many as I want regardless of the ratio of the strips?
Or, just as the strip theory becomes a little more accurate when the aircraft's aspect ratio is 3 or more in flutter analysis, the strip is also modeled with ar 3 or more??
Of course it could be something I can't find. sorry

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