ABSTRACT
This chapter examines numerical computation on the traditional internal mounted plate reinforcement ring and the new-type thick-cut embedded reinforcement ring, analyzes the influence of geometrical parameters on its performance, and compares the mechanical characteristics of the different structure types. It provides useful reference to the designing of connection type between pressure hull and bulkhead. The spherical bulkhead on submarines is propitious to maintaining weight and improving bearing capacity, thus meeting the requirement of large-depth operation of the submarine. In practical applications of spherical bulkhead, there is large longitudinal stress on the pressure hull and the inner surface of the bulkhead, and the concentration of stress is serious. The traditional way of reinforcing bulkheads is to weld flitch reinforcement ring on the inner surface of the pressure hull. The use of tapered reinforcement ring is conducive in reducing stress concentration on the bulkhead.
