Solid rocket engine dynamic centrifugal overload ignition testing device and method

Abstract

The invention provides a solid rocket engine dynamic centrifugal overload ignition testing device and method. The device comprises a centrifugal machine transmission system, a centrifugal machine rotating arm system, a balance weight cabin, an instrument cabin and a rotating cabin. The rotating cabin is arranged in a hollow structure at the outer end of a rotating arm. The side face of the rotating cabin is connected with the rotating arm through a rotating shaft. The rotating cabin is further hinged to the rotating arm through a screw type adjusting device. The length of the screw type adjusting device is adjusted so that the rotating cabin can be driven to rotate around the rotating shaft connected with the rotating arm. A solid rocket engine is installed in the rotating cabin through aspoke type fastening device. The spoke type fastening device comprises a conical cylinder, and the conical cylinder is formed by combining two semi-arc seats with the axial taper through a connectingbolt. A radial expansion-preventing soft cushion is stuck and fixed to the inner surface of the conical cylinder. A front end plate and a rear end plate are arranged at the two ends of the conical cylinder, an axial adjusting bolt is installed in the front end plate, and a circle of ring-shaped rubber block is stuck to the inner side face of the rear end plate. By means of the solid rocket enginedynamic centrifugal overload ignition testing device and method, the installing and debugging problem of a cone-structure whole-size solid rocket engine centrifugal overload test is solved.

Description

technical field [0001] The invention relates to a solid rocket motor dynamic centrifugal overload ignition test device and a test method, belonging to the technical field of solid rocket motor centrifugal overload ignition test. Background technique [0002] The centrifugal overload ignition test of the motor plays an important role in the development of solid rocket motors. In order to simulate the flight overload condition of the solid rocket motor, test the internal ballistic performance and ablation performance of the engine under different overload conditions, and provide more comprehensive assessment verification data for the development of the engine, it is necessary to establish a full-scale engine centrifugal overload test bench and develop a solid rocket motor. The rocket engine dynamic centrifugal overload ignition test device is used for the centrifugal overload ignition test of the full-scale engine. [0003] The original centrifugal overload test adopts the fo...

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Problems solved by technology

That is to say, each experimental angle requires corresponding tooling to support the arc seat and the engine assembly, resulting in the need to repeatedly disassemble and assemble the tooling when changing the angle for testing, resulting in more debugging links and low work efficiency

[0004] On the one hand, this kind of centrifugal overload test method has limitations on the structural size, quality and test parameters of the engine under test, and the overload capacity of the test device is relatively small; low work efficiency

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