An experimental setup for evaluating the slow cook-off response of solid motors
A solid engine and experimental device technology, applied in the direction of engine testing, measuring devices, machine/structural component testing, etc., can solve problems such as late start, unclear reaction mechanism, and restrictions on the application process of solid engines, and achieve simple assembly, Easy operation and high reliability of test results
Active Publication Date: 2020-12-22
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the late start of the slow cook-off of domestic solid engines, the reaction mechanism is unclear, the control measures are lacking, especially the lack of effective prediction experiment system, which seriously restricts the application process of solid engines in rockets and missiles
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0020] An experimental device for evaluating the slow cook-off response of a solid engine, the experimental device includes a simulated engine 4, a plug 1, an igniter 5, a photoelectric cell, a solid propellant 3, a heating system, and an information processing system;
[0021] The simulated engine 4 is a hollow cylinder with open ends made of No. 45 steel, with an outer diameter of 70 mm, an inner diameter of 20 mm, and a length of 500 mm; five equally spaced diameters are processed in the axial direction of the simulated engine 4 The photocell socket 2 with a diameter of 3mm is marked as No. 1, No. 2, No. 3, No. 4 and No. 5 according to the processing position, and the distance between two photocell sockets 2 is 50mm;
[0022] The plug 1 is processed with a thread with a length of 50 mm and a pitch of 2.5 mm;
[0023] The solid propellant 3 is HTPB / AP / Al solid propellant;
[0024] Described igniter 5 adopts black powder to ignite;
[0025] Two plugs 1 are respectively inst...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to an experimental device for evaluating the response degree of slow cook-off of a solid engine, and belongs to the technical field of slow cook-off of solid engines. According to the experimental device, a simulation solid engine with a specific size is designed, the propagation characteristic of a combustion wave in the solid engine is monitored through a photoelectric tube, and then data acquired by an information processing system is computed, so that the response degree of slow cook-off of the solid engine can be judged. The device is simple to assemble, convenient to operate and high in reliability of a test result, the effective evaluation of the response degree of slow cook-off of the solid engine is realized, the technical blank of pre-judging the response degree of slow cook-off of the solid engine in the nation is made up, and the application process of the solid engine on the rocket and the guided missile can be promoted.
Description
technical field [0001] The invention relates to an experimental device for evaluating the slow cook-off response degree of a solid engine, and belongs to the technical field of slow cook-off of a solid engine. Background technique [0002] Solid motors are the power source of rockets and missiles. Solid motors may encounter external stimuli such as heat, machinery, static electricity, and shock waves during transportation, storage, maintenance, and use. Combustion or explosion accidents may occur under different external stimuli. Thermal stimulation is one of the most common stimulation sources in the life cycle of solid motors. Therefore, the safety of thermal stimulation is also the focus of most attention of scientific research institutions and the military. [0003] Slow cook-off is the main method to characterize the thermal stimulus safety of solid motors under the condition of low heating rate. Foreign countries have carried out a lot of research work on the device f...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/00
CPCG01M15/00
Inventor 李军焦清介任慧
Owner BEIJING INSTITUTE OF TECHNOLOGYGY