5.CONCEPT EVALUTION AND PRODUCT ARCHITECTURE - R-Division-2022-2023-Odd/Repo-01 GitHub Wiki

PUGH CHART

OBJECTIVE	WEIGHTS
Safety	10
Ease of use	9
Portability	6
Use of standard parts	5
Cost	3

DESIGN OBJECTIVE	WEIGHTS	DESIGN 1	DESIGN 2	DESIGN 3	DESIGN 4	DESIGN 5
SAFETY	10	0	-	Datum	++	-
Ease of use	9	+	++	Datum	0	++
Portability	6	-	+	Datum	+	0
Use of standard parts	5	-	+	Datum	-	+
Cost	3	0	--	Datum	--	--
Score(+)		15	29	0	31	23
Score(-)		11	16	0	11	16
Total		4	13	0	20	7

5.1 JUSTIFICATION FOR SCORE

DESIGN N0.	OBJECTIVE	SCORE ALLOCATED	JUSTIFICATION FOR SCORE
1	Safety	10	Same as datum because the cutter is secured in a casing.
	Ease of use	9	Much easier to swap the empty pulley with wire loaded pulley.
	Portability	6	Have to carry pulley and machine separately. Moving datum is much easier.
	Use of standard parts	5	The mechanism used in Concept 1 i.e Triangular eccentric is a complex mechanism. Parts required would have to specially made.
	Cost	3	Same cost.
2	Safety	10	The wire cutter is exposed to the user which might cause some damage.
	Ease of use	9	Can be used to cut multiple wire at the same time without user interaction.
	Portability	6	Due to improper protection for electronics, The portability of this concept is very low.
	Use of standard parts	5	The mechanism used in this concept is very simple. Therefore, the parts used are easily available.
	Cost	3	Use of LED screen and a moving wire mover will result in heavy machinery, which have high costs.
3	Safety	10	Datum
	Ease of use	9	Datum
	Portability	6	Datum
	Use of standard parts	5	Datum
	Cost	3	Datum
4	Safety	10	It has casing to protect the electronics and guard with a guide LED to protect the user from any harm.
	Ease of use	9	Same as datum.
	Portability	6	Its modular design complemented by a handle allows it to be used in many environments. Therefore, it a portable device.
	Use of standard parts	5	Same as datum.
	Cost	3	It uses some specially made parts therefore it has high costs.
5	Safety	10	Equipped with a exposed blade this concept presents a harmful environment to the user.
	Ease of use	9	The method uses manual insertion of wire and length is determined by the user to his/her specifications.
	Portability	6	Because of its exposed blade, it is harder to transport than the datum.
	Use of standard parts	5	It uses a mechanism which can be easily made from parts available. No need of parts specifically made for the concept.
	Cost	3	It includes parts which are easily available but costly. Therefore, it has a high build cost.

5.2 SELECTED DESIGN

5.3 PRODUCT ARCHITECTURE

SL.NO	Subsystem
1	Wire info collecting
2	wire processing
3	Miscellaneous

5.4 FUNCTION CLUSTERING

5.5 INTERACTION BETWEEN SUBSYTEM

Subsystem 1	Subsystem 2	Subsystem 3	Subsystem 4
Spatial	Wire rolling unit
Data	Wire cutting and stripping data, presence of data	Indicates status of the wire, Presence of wire	Wire error notification
Material	Wire

Subsystem 2	Subsystem 1	Subsystem 3	Subsystem 4
Spatial	Wire receiving unit
Data	Wire cutting and stripping data	Completion and status data of cutting and stripping	Data of status of processing
Material	Wire		Stripped Wire

Subsystem 3	Subsystem 1	Subsystem 2	Subsystem 4
Spatial
Data	Presence of wire	Processing of wire, Indicates status of the wire	Current status of the wire
Material

Subsystem 4	Subsystem 1	Subsystem 2	Subsystem 3
Spatial
Data		Working Status of the task	Error and operating warnings, Working condition of the wire
Material		Stripped wire holder