| AVI
Library #200:
According to a Naval Aircraft Crash Report for 1972 - 1981, 45.3%
of helicopter mishaps occurred on water. For these
incidents, the landing gear would not be affective. Instead,
the lower portion of the helicopter is directly involved.
Understanding how a helicopter reacts to loading is critical for
designing them to survive these incidents. This analysis
investigates a CH-47 water crash event for various impact-speeds
and predicts pilot accelerations during each event. The
finite element analysis package LS-DYNA was used to simulate the
fluid structure event between a full CH-47 model and water.
Simulation courtesy of Jon Gabrys, Josh Schatz - The Boeing
Company, Structures-Technology, Philadelphia & Mhamed Souli -
University of Lille, France. |