BIO325H5 Lecture Notes - Lecture 9: Jumping Position, Shock Absorber, Stridulation

60 views4 pages
Published on 18 Apr 2016
School
UTM
Department
Biology
Course
BIO325H5
Professor
 
Power and springs
 
!
"
o#
$%
&Stridulaon
'
( !
Power: rate of doing work
)!'
o*+,-./
o,+0-./
o1+!
0'!'

o23'!+
,''!4!4
Resilin
0$'.3'
-''/
Resilin526!'700
o6-!'
6/
o'!''

89
Youngs modulus:.:-/
o;<+:
o<+:
o=>)+?4@
Power Amplicaon
#$!
o0'!3
''''
=$'
o0:$
'!'
!'
o*''

Unlock document

This preview shows page 1 of the document.
Unlock all 4 pages and 3 million more documents.

Already have an account? Log in

Document Summary

Springs help with creating rhythmic movement including mechanisms ranging from fruit flies to singing katydids. Katydid wings: the right wing contains a scraper that meshes with rows of teeth lining transversely running file vein of the left wing. It stores elastic energy while lodged behind a tooth and releases it in one fell swoop over the teeth of the cuticle; imagine a flick. More powerful muscle means more work done by muscle: w = fs (force x distance, f = ma (mass x acceleration, power = rate at which work is done. Acceleration occurs between teeth during stridulation thus it increases the rate of work between the teeth: but there"s a limit, but higher work = more power. Forces can be stored in other areas and given back faster a. k. a more powah. Arthropod cuticle is made of chitin nanofibers and protein matrix, but is sometimes made of only resilin (a rubbery material)

Get OneClass Grade+

Unlimited access to all notes and study guides.

YearlyMost Popular
75% OFF
$9.98/m
Monthly
$39.98/m
Single doc
$39.98

or

You will be charged $119.76 upfront and auto renewed at the end of each cycle. You may cancel anytime under Payment Settings. For more information, see our Terms and Privacy.
Payments are encrypted using 256-bit SSL. Powered by Stripe.