Page 122 - Practical Design Ships and Floating Structures

Practical Design of Ships and Other Floating Structures 97
You-Sheng Wu, Wei-Cheng Cui and Guo-Jun Zhou (Eds)
8 2001 Elsevier Science Ltd. All rights reserved

THE IMPACT LOAD OF WING-IN-GROUND-EFFECT CRAFT IN
WAVES AND APPLICATION OF HYDRO-SKI

Zu-Shun Dong, Xiao-Peng Gao and Wei Sun

NAVAL UNIVERSITY OF ENGINEERING
Wuhan. China

ABSTRACT

Wing-in-ground-effect craft (WIG) has been accepted by more and more countries because of its high
speed like an airplane but low cost as a ship, and also because of its outstanding performance of safety
and concealment. However, some technical problems must be solved to get a large and practical WIG,
first of all is the prediction and reduction of hydrodynamic impact load in rough sea. An effective
method has been proposed to calculate the impact load of WIG in waves. The theoretical research
quite agrees with the result of model test. Furthermore it is effective for WIG to reduce its impact load
in waves by using hydro-ski.

KEYWORDS

WIG, Impact, Impact load, Ski, Hydro-ski. Plat-ski. Ground effect

1 FOREWORD
Wing-in-ground-effect craft (WIG) has been accepted and attached importance to by more and more
countries because of its high speed like an airplane but low cost as a ship, as well as its outstanding
performance of safety and concealment. It has been regarded as a new kind of camer-platform of 21
century with a good future for either military or for commercial purpose.

Now, many countries such as Russia, China, Japan and America are studying this new kind of ship, but
only Russia has built out their applied large WIG of about 100 to 400 tons weight which has already
been used in After all, some key technical problems such as impact load in waves,
structure design rule, automatic pilot and aerodynamic layout With high efficiency must be solved to
get a large WIG. Furthermore impact'load in waves is one of the most important technical problem
among them.