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Part
Component Status
Responsible Engineers
Booster DiaphragmDesign

 

Sustainer DiaphragmDesign 

Design

Requirements:

  1. Shall connect soft goods to recovery assembly
  2. Shall withstand separation loads
  3. Shall withstand deployment loads

Material: Al 6061

Risks: Deforms during separation or parachute deployment

Features:

  • Pie cuts for mass reduction
  • Holes for interface with rope guide
  • Hole through center for piston
  • Radial holes for interface with cup
  • Single hole on one of the spokes for anti-rotation rod

Booster Diaphragm:

Sustainer Diaphragm:

Analysis

Booster Diaphragm FEA: 

  • lowest safety factor: 4.32

Sustainer Diaphragm FEA:

  • lowest safety factor: 4.84

 

Manufacturing

Operations:

  1. Waterjet profile
  2. Turn down diameter and step on lathe
  3. Mill holes with radial indexer
  4. Tap holes

Note: The CAD for the rope guide from McMaster is not exact- wait for the physical part to arrive and machine carefully

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