using relative references in range names

I have a workbook with a single worksheet. The worksheet includes some named ranges, which are used in a dynamic chart (so that when I add data, the chart updates).

I want to duplicate worksheet#1 so that I can have worksheets 2, 3, 4 etc.

Thus I can paste new data in the new worksheets, and have all my calculations done.

Naturally, the only probelm is the graph. It is using the named ranges from worksheet #1.

Is there a solution, so that I don't have to re-create my graphs on each worksheet? (each worksheet has varying numbers of rows, AND, I will be updating each worksheet with new data from time to time, thus the need for a dynamic chart)

Thanks