Parameter evaluation method for representing reliability, maintainability and supportability comprehensive capability of satellite
An evaluation method and maintainability technology, applied in electrical digital data processing, instrumentation, design optimization/simulation, etc., can solve the problem of disconnection between satellite RMS comprehensive parameter requirements and satellite design parameter requirements
Pending Publication Date: 2022-04-05
CHINA ACADEMY OF SPACE TECHNOLOGY
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[0003] The technical problem of the present invention is to overcome the deficiencies of the prior art, and provide a parameter evaluation method that characterizes the comprehensive ability of satellite reliability, maintainability and support, aiming to solve the problem that the user's requirements for satellite RMS comprehensive parameters and satellite design parameters are out of touch. , to establish the corresponding relationship and prediction method between user layer parameters and system, sub-system, and stand-alone-level parameters, as the basis for RMS design of satellite products at all levels
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[0066] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments disclosed in the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0067] Through foreign related research and preliminary work, under the framework of following the basic definition of RMS comprehensive parameters, combined with the product business and actual operation characteristics in the satellite field. It is proposed that the degree to which a product is in a workable or usable state at any random time when it is needed and starts to perform tasks is called the availability of satellite products, and the probability measure of availability is the degree of availability. Commonly used availability parameters include intrinsic availability, reachable availability, and use availability. For satellite equipment, due to the characteristics of its maintenance and support systems, the concept of use a...
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The invention discloses a parameter evaluation method for representing the reliability, maintainability and supportability comprehensive capability of a satellite, and the method comprises the steps: 1, carrying out the fault mode analysis, and determining a fault list; wherein the fault mode list comprises a fault name, a fault rate and a fault on-orbit maintenance measure; step 2, establishing a satellite use availability model according to user task requirements and satellite system composition; step 3, predicting the equipment-level failure rate and the function outage probability caused by the space environment; step 4, predicting satellite maintenance time parameters; and 5, calculating to obtain the use availability of the satellite. According to the method, the corresponding relation between the user layer parameters and the system, subsystem and single machine level parameters and the prediction method are established to serve as the basis of RMS design of all levels of products of the satellite, and the problem that the requirements of users for satellite RMS comprehensive parameters and satellite design parameters are disjointed is solved.
Description
technical field [0001] The invention belongs to the technical field of satellite parameter modeling and prediction, and in particular relates to a parameter evaluation method for characterizing comprehensive capabilities of satellite reliability, maintainability and guarantee. Background technique [0002] At present, the RMS related indicators of satellite products are mainly life and reliability. Satellite systems, sub-systems, stand-alone machines and even components all have clear requirements for reliability indicators. However, satellite RMS design elements such as maintainability, testability, and space environment adaptability There is a lack of, in particular, no comprehensive parameters that reflect the ability of satellites to complete their operations. The current reliability indicators are mainly design indicators, the purpose is to guide the reliability design of satellite products at all levels, and there is a lack of application indicators for users and speci...
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Inventor 王宗仁吴继峰周苏闰王畅王学望
Owner CHINA ACADEMY OF SPACE TECHNOLOGY