AFFINE MODEL OF LIQUID-PROPELLED ROCKET

FIELD: physics. ^ SUBSTANCE: invention relates to the field of physical simulation, particularly, to the structural models of rocket-space technology, which satisfy the requirements of the geometrical and constructive affine similarity of their elements. In the proposed model of conic fairing, cylindrical tanks with liquid, transitional and tail compartments, nozzles of the engine installations and stabilisers are connected into one whole by means of film vacuum packing. In this case the cylindrical tanks are made airtight with geometric similarity by the criteria of a constant ratio of the diameter of the tank to the thickness of its walls and with constructive similarity by the criteria of equivalent material. As gas for the pressurisation of the tanks, compact carbon dioxide is used. During tests the described model can be exposed to full or partial destruction while estimating the durability, environmental stability and reliability. The comparative evaluation of different construction and engineering solutions in the developmental stage can be carried out on the base of this model. The technical result of the invention consists of the sufficiently high efficiency of the proposed model during its tests and the relatively small cost of the model. ^ EFFECT: obtaining a model of highly effective liquid-propelled rockets at a relatively low cost. ^ 2 dwg