Research on assessment indices of safety and comfort for flight in wind fields

Wind fields have adverse effect on fly safety and comfort, many assessment indices have been used for years to describe wind fields, but there still exist some disadvantages. The vibration total value (VTV) of frequency-weighted root mean square acceleration has improved some of those defects, is suitable for wind field assessing. This paper also established models of mountain wave, turbulence and discrete gust, then use the VTV to assess different wind by flight simulation, at last obtain some meaningful conclusions