5.CONCEPT EVALUATION AND PRODUCT ARCHITECTURE - M-division-2022-2023-Even/Repo-07 GitHub Wiki

A.Pugh Chart.

Design Objectives	Weights	Design 1	Design 2	Design 3	Design 4
Safety	9	DATUM	(+)	(++)	(++)
Ease of use	8	DATUM	(+)	(++)	(+)
Portability	6	DATUM	(-)	(++)	(-)
Use of standard parts	5	DATUM	(+)	(-)	(-)
Cost effectiveness	7	DATUM	(+)	(-)	(+)
Precision	7	DATUM	(+)	(+)	(++)
Durability	5	DATUM	(-)	(++)	(+)
Score(+)		0	36	63	52
Score(-)		0	11	12	11
Total		0	25	51	41

B.Justifications.

Design No.	Objective	Score Allocated	Justification for the score
1	Safety	DATUM	DATUM
	Ease of use	DATUM	DATUM
	Portability	DATUM	DATUM
	Use of standard parts	DATUM	DATUM
	Cost effectiveness	DATUM	DATUM
	Precision	DATUM	DATUM
	Durability	DATUM	DATUM
2	Safety	+9	Due to its stable T-bar mechanism
	Ease of use	+8	As there are less mechanisms involved
	Portability	-6	Due to many wires and connections
	Use of standard parts	+5	As only a spring is used
	Cost effectiveness	+7	As only one standard part is used
	Precision	+7	As spring and stable T-bar is present
	Durability	-5	As spring might get rusted and loose the property of contractability
3	Safety	+18	Due to four bar mechanism
	Ease of use	+16	Manual work is not necessary for the system to perform the functions
	Portability	+12	It is compact compared to other designs
	Use of standard parts	-5	No standard parts are used
	Cost effectiveness	-7	As no standard parts are used
	Precision	+7	As there is only 180 degree movement of four bar linkage
	Durability	+10	Four bars are simultaneously used which makes the work efficient
4	Safety	+18	The machine will not be having any safety issues
	Ease of use	+8	As its prototype is built perfectly
	Portability	-6	As it consists of rods
	Use of standard parts	-5	No standard parts are used
	Cost effectiveness	+7	As no standard parts are used
	Precision	+14	As two mechanisms are involved such as scotch yoke and rotating mechanism
	Durability	+5	It offers higher torque for same frame size

C.Selected Design.

D.Product Architecture.

i]Function Clustering

SL No.	Subsystem
1	Paper holding unit
2	Stamping unit
3	Storing unit
4	Controlling unit

ii]Material Interactions