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LSD Prototype (Layered Surface Detector). LSD prototype status and lessons : The ribs were placed under the top layer -> no more punching of the layers -> gain of space Volume and weight -> Dia max 320 mm, ~ 30 kg

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lsd prototype layered surface detector
LSD Prototype(Layered Surface Detector)
  • LSD prototype status and lessons:
  • The ribswereplacedunder the top layer
  • -> no more punching of the layers
  • -> gain of space
  • Volume and weight -> Dia max 320 mm, ~ 30 kg
  • Holeopeningon top of the tank -> Dia 360 mm, hand milling machine
  • Simple hinge system -> Lower the overallcost
  • -> addsome rivets, ribswithflate end, anti-rotation cotter pin
  • Opening tests -> Shrouds system Ok, max strength = 190 daN!
  • To bedefined:
  • Size and watertightnessof the hole on the tank liner
  • Strengthneeded to open the LSD in water
  • Mechanismused to open the LSD into the tank
  • -> combinationbtwpulling on the hinges and pushing on the central tube
slide2

LSD Prototype(Layered Surface Detector)

The ribs are now placed under the top layer

Now

Before

lsd prototype layered surface detector1
LSD Prototype(Layered Surface Detector)

Volume and weight

Total weight: 30 kg

320 mm

320 mm

lsd prototype layered surface detector2
LSD Prototype(Layered Surface Detector)

Tank hole drilling

Compass hand milling machine

360 mm

lsd prototype layered surface detector3
LSD Prototype(Layered Surface Detector)

Hinge sytem

Add of rivet

Before

Now

Anti rotation cotter

pins

lsd prototype layered surface detector6
LSD Prototype(Layered Surface Detector)
  • Liner opening, liner watertightness (to bedefined)
  • Actual proposition:
  • Introduction of a large foldawayflange
  • Gluing of the flange on the liner
  • Cutting out the liner (Flange = pattern)
  • 2 halfflanges are placedat the inner part of the liner
  • Flangesscrewing = the liner is in sandwich btwflanges

550

1200

lsd prototype layered surface detector7
LSD Prototype(Layered Surface Detector)

Mechanism used to open the LSD into the tank (to be defined)

combination btw pulling on the hinges and pushing on the central tube

lsd prototype layered surface detector8
LSD Prototype(Layered Surface Detector)

Strength required to keep the LSD opened : 16,5 daN (46,5 – 30)

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