Hazard Modeling Method in Maintenance Safety Assessment with Virtual Reality Environment

the maintenance work of equipments is so heavy that it has to be considered as one of the most important works in designing phase of equipments. The Safety assessment is an essential part of maintainability evaluation. The dissertation studies the hazards which would occur in maintenance process. Then the definitions and classification of hazards are given. Following this, a new hazard model in virtual reality environment is given, combining the ergonomic and the characteristics of each type of hazards. Then, the impact patterns of each type of hazard are present according to the physics characteristics of hazards in ergonomic. At the end of the paper, method of safety assessment base on the new hazard models is given.