曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
┃ .:l ┃ ┃ I ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━┻━━┻━━━━━━━┛
I f
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ -J-. l- - )- - /\ A r\ ^ f\ ┃
┃ \, -- '-l - - ' - lk_/ \) ┃
┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
┃ .lil, ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
{
┏━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━┓
┃- t. r c\ r ┃J\-- _ ┃
┣━━━━━━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━┫
┃--_,.-- l-VJ\.l/~\/ A.r\ _ ^ ┃ I ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━┻━━━━━━━━━━━┛
0
lo
t, s
20 25
lfig. 8.60 Wing rock suppression of X-29 model. using stability augmentation
system.41
732
PERFORMANCE, STABILITY, DYNAMICS, AND CONTROL
8.12 Roll Reversal and Yaw Departure
8.12.1 RoIIReversal
Generally, the ailerons are used for producing rolling motion. Howe'ver, at high
angles of attack, much of the aileron effectiveness may be lost. In addition, the
aileron defiection at high angles of attack may produce significant adverse yaw,
which may lead to the so-called roll reversal phenomenon, in which the aircraft
rolls in the opposite direction to aileron input. The angle of attack at which the roll
reversal occurs can be approximately determined using the following criterion,
called lateral control departure parameter or LCDP.43 The LCDP is derived from
simplified equations for yawing and rolling motions and is defined as follows.
A17erons a/one for ro//. The LCDP is given by
LCDP = Cnp - C/-,. Cip (8.4)
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
PERFORMANCE, STABILITY, DYNAMICS, AND CONTROL4(92)
