Design And Analysis Of The New Light-weight Protective Closed Doors

In protection of the civil air-defence the gate is the most important of protective equipment. The research and design of the protective equipment have had more than forty years, with fruitful results. But there are many disadvantages, only material is concerned, more extensive is still heavily reinforced concrete and steel. These two kind of door leaf material has the gate body to be unwieldy and price high shortcoming. the ideal of protective materials should have the following characteristics:light and strong, good anti-shock-wave ability, good toughness, good against fragment ability, low price, material is easy to pick up, etc.This article in this context, the protection of the sealing of the structure of its analyses and optimized design study.For its structural stability and structure of the linear back, strength of the system of study, for its matter to the stability of its work, and sharp windings on the destruction of the way.The analysis, as software ANSYS in the literature on the basis of defining the entrance to be able to resist the pressure of 3 6mpa and safety to achieve 4.0. rational use of the shell shell99 simulation of spread of composite construction units, the unit to strengthen the process, used to simulate solid95 RPUR. the fourth element was a model for the structural analysis is the number of foam and analysis of the existence of the way through finite element analysis of the different structures Stress distribution of its laws and to determine the size of its structure. To determine its structure on the basis of uses FRP hand to set the burning process of the structure of the trial.By this research work, and protective exerted its production structure of the door way with raw materials, and verify that the rationality, and eventually established, the use of GFRP and RPUR as a mezzanine design protection airtight doors set the weight at about 0.5t, Tradition of all steel weigh airtight doors set 4t, and weight reduction in. through finite element analysis software ANSYS optimize its structure and its role in the static under stress and strain distribution, And modal and stability characteristics; as for the sandwich, and the foam for epoxide resins the composite to strengthen, and at the perimeter of the equivalency stress between 3 35MPa-10.7MPa, The equivalent of the main stress is 10.7MPa～41.9MPa, in particular, the intermediate position 41.9MPa～93.8MPa, and the equivalent to strengthen, the greater the stress. and because the stress should be made of leather is far less than the critical stress, the light to protect the door in the sealing there is a large spacefor the optimization.