RESEARCH OF DISCLOSURE OF RELIVE VENTING STRUCTURES WITH POLYCARBONATE FENCING IN CONDITIONS OF EXPLOSION

Abstract

The article considers the processes of release of the openings of relive venting structures based on honeycomb polycarbonate sheets under action of an explosion. When using such a design of RVS it is necessary to study the main features of its behavior in case of an explosion, and to determine the conditions of releasing the edges of flexible elements from the locks of window frames of standard profile. At the same time, it is important to ensure that the design dimensions of RVS openings are such that their release under the action of excess pressure from explosion with a boundary value would be reliable and guarantee a rapid decrease of the pressure to safe values. The use of honeycomb polycarbonate sheets lets to save transparent fence against destruction, decrease risks of human traumatism by reason of glass shards hurting, reduce weight of relive venting structures. There were investigated the conditions of the ratio of the opening sizes of the sections of relive venting structures with honeycomb polycarbonate sheets, under which this opening is reliably released to reduce the pressure during the explosion to safe values. A mathematical model was proposed that establishes a relationship between the value of the explosion pressure and the opening size at which the opening of relive structures with honeycomb polycarbonate sheets. The article proposes a calculation method for designing the sections of relief structures with honeycomb polycarbonate sheets using nomograms. The use of developed method lets significantly simplify calculating for design of relief structures with honeycomb polycarbonate sheets. The nomograms were built to determine the design parameters of the openings of the CPS sections in accordance for certain boundary values of excess pressure from explosion