📄 accel.htm
字号:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
<html>
<head>
<link rel="stylesheet" type="text/css" href="fdchelp.css">
<title>
FDC help: Accel
</title>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
</head>
<body bgcolor="#DDDDDD"><div>
<h2>
Subsystem <i>Accel</i>
</h2>
<p><i>Accel</i> computes the specific
forces and accelerations of the aircraft, as measured in the aircraft's
centre of gravity. The block <i>Accel</i> is contained in the subsystem
<i><a href="moreouts.htm">Additional Outputs</a></i> of the system <i><a
href="beaver.htm">Beaver</a></i>. The outputs from <i>Accel</i> are not
needed to solve the state equations. Hence, <i>Accel</i> can be removed
from the system <i>Beaver</i> without affecting the solution of the state
equations. </p>
<h3>
Inputvectors: <i>Ftot</i> and <i>Fgrav</i>
</h3>
<pre>
Ftot = [Fx Fy Fz]' (total body-axes forces, coming from <a href=
"fmsort.htm">FMsort</a>)
Fgrav= [Xgr Ygr Zgr]' (body-axes forces due to gravity, coming
from the block <a href=
"gravity.htm">Gravity</a>)
Fx, Fy, Fz : total forces along the aircraft's body-axes [N]
Xgr, Ygr, Zgr: gravity forces along the aircraft's body-axes [N]
</pre>
<h3>
Outputvector: <i>yacc</i>
</h3>
<pre>
yacc = [Ax Ay Az axk ayk azk]'
Ax, Ay, Az : specific forces (= outputs of accelerometers) in
the centre of gravity of the aircraft [m/s^2]
axk, ayk, azk: components of the accelerations of the c.g. along
the body-axes [m/s^2]
</pre>
<h3>
Parameters to be defined in the Matlab workspace
</h3>
<ul>
<li>
<p><i>GM1</i>: vector with some important geometrical properties of the
'Beaver' aircraft, and the mass of the aircraft (which is
assumed to be constant during the motions of interest). Here, the mass
<i>m</i> is extracted from the vector <i>GM1</i>. The vector <i>GM1</i>
can be loaded from file by calling <i><a href=
"datload.htm">DATLOAD</a></i>. If the datafile does not yet exist, run
<i><a href="modbuild.htm">MODBUILD</a></i> first.</p>
</li>
</ul>
</div></body>
</html>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -