PPRuNe Forums - View Single Post - 787 Batteries and Chargers - Part 1
View Single Post
Old 12th Feb 2013, 12:02
  #661 (permalink)  
Lyman
 
Join Date: Aug 2011
Location: Grassy Valley
Posts: 2,074
Likes: 0
Received 0 Likes on 0 Posts
HazelNuts39

Yes, there are wires in the space between cell #2 and cell#3. Also, it appears some space for separation was allotted for isolation, at least between the above two cells. The Heat Damage seems worst at areas near metallic components. The case survived; had it been bigger, would there have been less damage to the nearby components?

Your numbering scheme is appropriate, but NTSB still got the "sides" wrong. The front of the Battery should determine the relative orientation, imo.

Question? Why such relatively massive connector bars? Why such close proximity to the Stainless Case?

Why is the Battery case placed so near the deck? Why not a stand off base, to prevent the kind of heat damage to the floor we see in the NTSB photo of the technician in the E/E bay?

I think the elements of compliant design are all there, but the dimensions, volumes are cut too thin.... There was ample room to accomodate a stand off base and more room between Stainless case and cells.... Not to mention the proximity to the bulkhead that supports the power panels.

Hind sight, eh?

Last edited by Lyman; 12th Feb 2013 at 12:06.
Lyman is offline