Verification method of thermal design of spatial load
A verification method and thermal design technology, applied in the field of aerospace thermal control, can solve the problems of the difference between the installation state and the thermal design state, and the difference of the product installation state, so as to reduce the complexity and save the time and cost of the test.
Inactive Publication Date: 2016-12-07
SHANGHAI INST OF SATELLITE EQUIP
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[0005] In addition, for small-batch-produced satellites and future mass-produced spacecraft, the current domestic spacecraft manufacturing process, especially the thermal control implementation process, is manually operated, and there may be differences between the installation status and thermal design status, and different products of the same batch There may be differences in the installation status of
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[0034] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0035] Such as figure 1 As shown, the present invention provides a method, comprising:
[0036] Step S1, conduct a thermal characteristic test on the spacecraft or load, and obtain the thermal characteristic test boundary conditions and test results;
[0037] Step S2, establishing a thermal analysis mathematical model, and correcting the thermal analysis mathematical model according to the thermal characteristic test boundary conditions and test results;
[0038] Step S3, calculating and obtaining the heat balance result according to the corrected heat analysis mathematical model. Specifically, the method of the present invention can be referred to as the "test + correction + calculation" thermal design verification method for s...
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This invention provides a verification method of thermal design of spatial load. The method comprises the steps of: firstly, performing a thermal characteristic test to a spacecraft or a load so as to verify material characteristics, and parameters such as contact thermal conductivity coefficient (contact thermal resistance) of a key thermal transmission path, and the like; secondly, revising a thermal analysis mathematic model to ensure that the thermal analysis mathematic model truly reflects the thermal characteristic of the spatial load; and finally, calculating and acquiring an in-orbit thermal balance result through virtually applying external heat flux. The method is mainly used for the processes such as verification of the thermal design of the spatial load, and the like, can effectively test and verify the thermal control state of the key parts of the spacecraft through the thermal characteristic test, can acquire the external heat flux and the thermal balance result based on the thermal characteristic test and the thermal calculation analysis, and can obtain the efficient and high-precision result.
Description
technical field [0001] The invention belongs to the technical field of aerospace thermal control, and in particular relates to a verification method for thermal design of space loads. Background technique [0002] At present, my country's satellite development mostly adopts the mode of whole satellite single piece or small batch production. In this mode, each satellite needs to conduct a thermal balance test, which requires simulating the on-orbit working state of the spacecraft and its corresponding external heat flow as much as possible, so as to verify the correctness of the satellite thermal design. The whole test process has high requirements on vacuum equipment and external heat flow device, and the test process usually lasts for more than 15 days. Among the above-mentioned heat balance test methods, the real external heat flow simulation method (or pseudo-real external heat flow simulation method) is used for the external heat flow simulation, which is difficult to...
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Login to View More IPC IPC(8): G06F17/50
CPCG06F30/23G06F2119/08
Inventor 赵凯旋孙敬文代善良庞乐彭聪
Owner SHANGHAI INST OF SATELLITE EQUIP