Mechanical Design Concepts

Capstone Senior Design Idaho RISE NASA Idaho Space Grant Consortium

Conceptual Design

	Method of Ascent
	Probe Shape
	Materials
	Release Mechanisms
	Parachute Deployment
	Parachute Design
	Sensor Rods

Mechanical Decision Tables

Electrical Design Concepts

Design Concepts

Electrical Decision Tables

Probe Prototypes

Mechanical Decision Tables

Below are the Mechanical Design Decision Tables. For a more detailed view of the tables including the ranking of each criteria, click here. We used these tables to judge designs and help us to choose a final design concept.

Design Number		0	1	2	3	4	5
Design Description		Datum	Preferred	Carbon	Scramp	Aeroshell	Low Cost
Method of Ascent		Rise release	Rise release	Rise release	Rise release	Rise release	Rise release
Geometry		Sphere	Sphere	Sphere	Scramp	Sphere+a	Sphere
Materials		Plastic	Plastic	Cabon	Plastic	Cabon	Foam
Release Mechanisms		Nichrome	Nichrome	Nichrome	Nichrome	Nichrome	Nichrome
Parachute Deployment		mortar	mortar	mortar	mortar	mortar	mortar
Parachute Design		hole w/ drone	w/hole	w/hole	w/hole	w/hole	w/hole
Sensor Rods		cross	cross	cross	cross	cross	cross

Rating of Overall Design
Design Number		0	1	2	3	4	5
	Weight
Method of Ascent	2	100.0	100.0	100.0	100.0	100.0	89.5
Geometry	9	100.0	100.0	100.0	73.1	36.6	66.7
Materials	5	100.0	100.0	80.0	100.0	84.7	69.4
Release Mechanisms	10	100.0	100.0	100.0	100.0	100.0	100.0
Parachute Deployment	10	100.0	100.0	100.0	100.0	100.0	64.5
Parachute Design	5	100.0	85.3	85.3	85.3	85.3	85.3
Sensor Rods	6	100.0	100.0	100.0	100.0	100.0	87.5

Final Score		4700.0	4626.7	4526.9	4384.7	3979.2	3722.4
Percent		100.0	98.4	96.3	93.3	84.7	79.2

For problems or questions regarding this web contact [cyklein@uidaho.edu].
Last updated: 05/10/06.