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Thesis - Leigh Moody.pdf - Bad Request - Cranfield University

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Appendix D / Point Mass Dynamics<br />

_ _<br />

Replacing the body rates with Euler rates with a zero Euler roll angle,<br />

ϕ<br />

R 2 2 R R 2<br />

XR<br />

( Ψ&<br />

I ) ⋅ cos ΘI<br />

+ ( &<br />

I ) ⎟<br />

⎞ + 3⋅<br />

Pa<br />

, b ⋅ JX<br />

XR XR XR<br />

Ja, b : = & P&<br />

&<br />

a,<br />

b − 3⋅<br />

P&<br />

a,<br />

b ⋅ ⎜<br />

⎛ Θ<br />

ϕ<br />

⎝<br />

⎠<br />

JX<br />

3 ⋅ &P<br />

&<br />

Ψ&<br />

&<br />

XR<br />

a,<br />

b<br />

R<br />

I<br />

R<br />

I<br />

17-11<br />

Equation 17.6-3<br />

R R R R R<br />

R R R<br />

( Ψ&<br />

& ⋅ cosΘ<br />

− Θ&<br />

⋅ Ψ&<br />

⋅ sin Θ ) ⋅ cosΘ<br />

+ Θ&<br />

& ⋅ &<br />

: = − Ψ&<br />

⋅<br />

Θ<br />

⋅ Ψ&<br />

− 3 ⋅<br />

−3<br />

⋅ P&<br />

&<br />

XR<br />

a,<br />

b<br />

ϕJZΨ R<br />

I<br />

⋅ cΘ<br />

R<br />

I<br />

I<br />

+ 3⋅<br />

P&<br />

XR<br />

a,<br />

b<br />

⋅<br />

I<br />

J<br />

YR<br />

a,<br />

b<br />

I<br />

: =<br />

I<br />

I<br />

I<br />

I<br />

Equation 17.6-4<br />

R R R R R XR<br />

( ΨI<br />

⋅ cΘI<br />

− 2 ⋅ Θ&<br />

I ⋅ Ψ&<br />

I ⋅ sΘI<br />

) + Pa<br />

, b ⋅ ϕJY<br />

Equation 17.6-5<br />

R 2 R R 3 R<br />

R R R R R<br />

( Θ&<br />

) ⋅ Ψ&<br />

− ( Ψ&<br />

) ⋅ cΘ<br />

+ 3 ⋅ ( Ψ&<br />

& ⋅ Θ&<br />

+ Ψ&<br />

⋅ Θ&<br />

& ) ⋅ sΘ<br />

⋅ Θ&<br />

I<br />

R<br />

I<br />

ϕJZΘ I<br />

− 3⋅<br />

P&<br />

: =<br />

XR<br />

a,<br />

b<br />

R<br />

I<br />

⋅<br />

− & Θ&<br />

&<br />

I<br />

ϕ<br />

JY<br />

I<br />

: =<br />

: =<br />

I<br />

I<br />

I<br />

I<br />

Equation 17.6-6<br />

( Θ&<br />

& R<br />

+ Ψ&<br />

R R R XR<br />

⋅ sΘ<br />

⋅ cΘ<br />

) + P ⋅ ( ϕ + ϕ )<br />

R<br />

I<br />

I<br />

+ Θ&<br />

J<br />

R<br />

I<br />

ZR<br />

a,<br />

b<br />

I<br />

⋅<br />

I<br />

I<br />

a,<br />

b<br />

JZΘ<br />

2<br />

2<br />

( Ψ&<br />

R ) + ( & R ) ⎟<br />

⎞<br />

I<br />

I<br />

⎠<br />

⎜<br />

⎛ 3 ⋅<br />

Θ<br />

⎝<br />

I<br />

JZΨ<br />

Equation 17.6-7<br />

Equation 17.6-8<br />

R R R R R<br />

R<br />

( Ψ&<br />

& ⋅ sin Θ + Ψ&<br />

⋅ Θ&<br />

⋅ cosΘ<br />

) ⋅ cos<br />

: = 3 ⋅ Ψ&<br />

⋅<br />

Θ<br />

I<br />

I<br />

I<br />

I<br />

I<br />

Equation 17.6-9<br />

I<br />

I

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