This is the ultimate load, which in the case of the container is the ultimate pressure. At the same time, if the ultimate pressure obtained by the csF-17-100-2UH harmonic reducer of Hamenaco reinforcing vessel with a certain reinforcing structure is basically the same as the ultimate pressure of the cylinder (or head) without the reinforcing structure, the reinforcing structure can be considered feasible, which is the limit analysis criterion of the reinforcing design.

Since the 1950s, the vigorous development of chemical industry and petrochemical industry has led to the trend of large-scale chemical container csF-17-100-2UH, high parameters (high pressure, high temperature, low temperature) and the selection of high strength materials. Therefore, a series of new problems have appeared in the design, manufacture and safety management of chemical containers, such as fatigue failure, low stress brittle fracture, high temperature creep failure and so on. These problems cannot be solved by conventional container design methods. The emergence of these engineering problems has greatly promoted the development of container design theory