Page 270 - Practical Design Ships and Floating Structures

Practical Design of Ships and Other Floating Structures 245
You-Sheng Wu, Wei-Cheng Cui and Guo-Jun Zhou (Eds)
0 2001 Elaevier Science Ltd. All rights reservcd

COMPREHENSIVE FUZZY APPROACH IN HAZARD
IDENTIFICATION OF FORMAL SAFETY ASSESSMENT (FSA)

Ying-Qiu Chen’ and Shao-Fen Lin’

‘China Classification Society
40 Dong Huang Cheng Gen Nan Jie. Beijing 100006, China
‘Department of Machinery of Navigation College, Jimei University
205 Rome. 175 Shi Gu Load, Jimei, Xiamen. Fujian Province, China

ABSTRACT

The paper presents an approach, which is used in hazard identification of Formal Safety Assessment
(FSA) for ships, consisting of both fuzzy set theory application and database technology. An example
of application concerned approach was given. This system will be applied to the application of decision
making in the near future.

KEYWORDS
Risk Assessment. Database Technology. Fuzzy Set Theory

I INTRODUCTION

There is a similar risk assessment procedure in the shipping or in the industry; namely it consists of
three parts including the concerned persons, environment and the used facilities. Regarding a ship
system. it should involve three parts; these are ships, navigation environment and crew. In the paper
(Chen. 1998). the mathematics model for ship system is divided into seven sets which are as follows:

- ship set;
- crew set;
- environment set;
- relation set between ship and environment;
- relation set between ship and crew;
- relation set between crew and environment;
- relation set among ship, crew and environment.

At present, the safety ” and dangerous ” all belong to fuzzy concepts, the difference between them
will effect the final research results and decision made by top management level who decides the safe&