Analysis of Design Processes by Function, Behavior and Structure

8/17/2019 Analysis of Design Processes by Function, Behavior and Structure

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3

3


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ASPECT

Function Set

Behavior Set

Structure Set

Physical Laws

: function

: behavior

: state: state change

: behavior sequence

B-S Relationship

F-B Relationship


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function A

function B

funcion A & function B function A * modifier M

function A

modifier M


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function A

function B function C

decompose

behavior B behavior C

structure B structure C

function Afunction B

behavior B behavior A

be-caused-by

structure B structure A

function B

behavior B behavior A

be-reinforced-by modifier A1

function A

structure Astructure B

behavior A

modifier A1

structure A

behavior A

function A

structure A

function A


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Function Model1

Function Model2

Function Model3

Function Model2

Structure Model2

Behavior Model2

Function Model1

Structure Model1

Behavior Model1

Function Model4

Function Model3

Structure Model3

Behavior Model3

Function Model5

Structure Model5

Behavior Model5

Function Model4

: function evolution

: structure evolution

f 0:27:30

s18

s20

f 0:30

s23

f 0:31

s25

f 0:32

s27

f 0:33

f 0:38

pannier

pannier with separable backpack

horizontal, rearward

bag

can rotate around axis

s37s38

s39s40

s41s42

s43

Velcrosnap

straps

bungy cordsquarter turn fastener

draw latchcinch strap

s24 use frame

time

function model structure model


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a t t a c h

f o l d d o w n

s t a c k a w a y

c a r r y / f a s t e n

A s s i g n m e n t

e a s i l y

e a s i l y

e a s y o f u s e

f o r m o s t b i k e s

a s p o r t y , a p p e a l i n g f o r m

r e a s o n a b l e p r i c e r a n g e

b a c k p a c k

b i c y c

l e

a t t a c h

d e v i c e


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a t t a c h

f o l d d o w n

s t a c k a w a y

c a r r y / f a s t e n

A s s i g n m e n t

e a s i l y

e a s i l y

e a s y o f u s e

f o r m o s t b i k e s

a s p o r t y , a p p e a l i n g f o r m

r e a s o n a b l e p r i c e r a n g e

b a c

k p a c k

b i c y c l e

a t t a c h

d e v i c e

u p t o $ 5 5

s t a b l y

e a s i l y

e a s i l y

5 0 0 0 / y e a r p r o d u c t

c e n t e r o f g r a v i t y i s l o w

a v o i d s t r a p s h a n g i n g p r o b l e m

e a s e o f

m o u n t

N G : c e n t e r o f g r a v i t y

i s f a r t o t h e b a c k

U s e r s ' t r i a l

f i r m l y

s t a b i l i t y w i t h p o t h o l e s

?

N G : l i f t u p t o o h i g h

?

N G : p e r m a n e n t f i x i n g p o i n t s a r e e y e s o r e

?


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Function Model 1

Structure Model 1

Function Model 2

Structure Model 2

Function Model 2x

Structure Model 2

Behavior Model 2

Structure Model 2

(a) (b) (c) (d)


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a t t a c

h

f o l d d o w n

s t a c

k a w a y

c a r r y

/ f a s

t e n

e a s

i l y

e a s

i l y

e a s y o

f u s e

f o r m o s

t b i k e s

a s p o r t y ,

a p p e a

l i n g

f o r m

r e a s o n a

b l e p r i c e r a n g e

b a c k

p a c

k

b i c y c

l e

a t t a c

h

d e v

i c e

u p

t o $ 5 5

t i m

e

0 0 : 1 4 : 0 0

p e r s o n

o n

s t a b l y

e a s

i l y

e a s

i l y

5 0 0 0 / y e a r p r o

d u c

t

f i r m

l y

r e a s o n a

b l e t i m e

t o t a k e

o f f

e a s y

t o a

t t a c

h

e a s y

t o r e m o v e

m a n u

f a c

t a b i l i t y

n o

t t o b e

d i f f i c u

l t t o p e

d d l e

p e

d a

l

r i d e

s t e e r

c e n t e r o f g r a v i t y i s l o w

n o t h e a v y t o s t e e r

n o

t h e a v y

t o s

t e e r

M 1 1

0 0 : 2 7 : 3 0

p a n n

i e r

B e h a v i o

r

b a

d s

i d e

b a

l a n c e

g o o

d s

i d e

b a

l a n c e

s 1

8


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Analysis of Design Processes by Function, Behavior and Structure