I just had this issue and found a solution that worked for me:
1 - Create your bar chart with the 3 dimensions and 1 measure
2 - Make sure your most outward dimension (if you are doing year/month/week, it would be year) is listed first.
3 - On the 'Dimensions' page, click the 'Trellis' button.
4 - If you have a fixed number of years (or first dimensions) this will work best, but now check 'Enable Trellis Chart', then for number of columns, select your fixed number, and number of rows, select 1.
Hope this helps!