Eh. Special Purpose torp ships, yes. Just on general purpose ships, no.
It's just one of those things that they're hard to justify use of. Torps get shot down. Beams don't. Torps run out - in all of freespacedom, not one beam weapon has simply run out of ammo. Even if they were fusion based, or otherwise not prone to just explode cause they got shot, giving the enemy a chance to block your attack while at the same time giving your logistics train another commodity to worry about doesn't seem like a great idea. Just put in a beam cannon where the torp launcher would be instead.
On specialist ships though, I can see a purpose. Beam cannons have power requirements and cool down times, so using them for fast, hard first strikes isn't so great an idea. You could, however, make something vette classed, with something like 8 or 10 torp launchers on either side and no other weapons, with the idea being to jump in, drop off it's entire payload as quickly as possible, and get the hell out of there. Over the long haul, you're better off with beam weapons, but if all you want is the heaviest strike you can get then a quick exit stage left, torps could have a use. Cruiser class probably wouldn't work though - for it to work, it has to be able to survive that first beam salvo, and that's not an easy trick for a cruiser up against something where a massive torp broadside would be appropriate.