SACS Tow Results Validation


SACS Tow Results Validation

K.KUROJJANAWONG

 

1

2

A) Pitch Load Case – Angular Acceleration about Y-axis = 4.935 deg/sec2

Motion at #14 and #34

r = 30 m, θy’’ = 4.935 deg/sec2, α = 90 deg

ax = r θy’’ = 30 m x 4.935 deg/sec2 x (π / 180) x sin 90 / 9.81 = 0.263g

az = -r θy’’ = -30 m x 4.935 deg/sec2 x (π / 180) x cos 90 / 9.81 = 0.000g

 

Motion at #24 and #44

r = 50 m, θy’’ = 4.935 deg/sec2, α = tan-1 (30/40) = 36.9 deg

ax = r θy’’ = 50 m x 4.935 deg/sec2 x (π / 180) x sin 36.9 / 9.81 = 0.263g

az = -r θy’’ = -50 m x 4.935 deg/sec2 x (π / 180) x cos 36.9 / 9.81 = -0.351g

1

 

 

 

 

 

 

 

 

B) Roll Load Case – Angular Acceleration about X-axis = 7.896 deg/sec2

Motion at #14 and #24

r = 30 m, θy’’ = 7.896 deg/sec2, α = 90 deg

ay = -r θy’’ = -30 m x 7.896 deg/sec2 x (π / 180) x sin 90 / 9.81 = -0.421g

az = r θy’’ = 30 m x 7.896 deg/sec2 x (π / 180) x cos 90 / 9.81 = 0.000g

 

Motion at #34 and #44

r = 58.31 m, θy’’ = 7.896 deg/sec2, α = tan-1 (30/50) = 30.9 deg

ay = -r θy’’ = -58.31 m x 7.896 deg/sec2 x (π / 180) x sin 30.9 / 9.81 = -0.421g

az = r θy’’ = 58.31 m x 7.896 deg/sec2 x (π / 180) x cos 30.9 / 9.81 = 0.703g

2

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s