Overall Design Of The Collectivity Escaping Chamber

As the backbone in modern naval warfare,the submarinehas beenvigorously developed since its inception.However,because of its specificity,the accidents about wrecked submarine occur frequently.While conventional submarine escape and rescue systems exist low security,low success rate ofrescue,poorlyautonomy,and long time waiting for rescue and other shortcomings.As a new standaloneescape device,collective escape capsule can ensure the safety of staff during escape and improve the survival rate of accident submarinerseffectively.This paper studies the structure design of the collective escape cabin pressure hull,overall layout design,risk assessment and other aspects.For structural design of the pressure hull,first of all,according to factors in the pressure hull structural design,determine the material,structure and size of the pressure hull.Secondly,the use of "standard" calculated pressure hull’s structural strength and stability.And checked the strength and stability of the pressure hull by applying ABAQUS.The comparative analysis of both validated the safety and reliability of the designed pressure hull.Based on the overall compatibility,size factor and design requirements,determinecomposition of escape pod system,and overall design system configuration based on size of each dimension and its position.According to the general arrangement,calculate the hydrostatic performance and stability performance of the collective escape capsule,to verify the reasonableness of the overall arrangement.The collective escape podexisted various risks in the escape process,so carried out risk assessment is necessary.In this paper,we calculated the level of risk based onExperts Weights,calculated risk probability based on fuzzy set theory.And combined with the risk matrix,calculate the level of risk and risk probability about the failure modesmay exist in escape pod,conduct risk assessment ultimately.