Applied in sub-transonic wind tunnel, dual-balance co-support force measuring device and method

A technology of supporting device and force measuring device, which is applied in the direction of measuring device, testing of machine/structural components, aerodynamic test, etc. The effect of improving measurement accuracy

Active Publication Date: 2021-06-11
CHINA ACAD OF AEROSPACE AERODYNAMICS
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Problems solved by technology

[0004] The problem solved by the technology of the present invention is: Aiming at the problems of large assembly stress and poor measurement accuracy of the existing dual-balance joint-supported force-measuring device, a new type of dual-balance joint-supported force-measurement device that can realize fine-tuning of the position and posture between the two balances is designed and method

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  • Applied in sub-transonic wind tunnel, dual-balance co-support force measuring device and method
  • Applied in sub-transonic wind tunnel, dual-balance co-support force measuring device and method
  • Applied in sub-transonic wind tunnel, dual-balance co-support force measuring device and method

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Embodiment Construction

[0039] Attached below Figure 1-9 , to describe in detail the specific embodiment of the present invention.

[0040] The invention discloses a dual-balance joint support force measuring device and method applied to a sub-transonic wind tunnel, which solves the problem of excessive internal stress in the system caused by the inherent over-constraint and processing and assembly errors of the dual-balance support system. Can effectively improve the measurement accuracy. Specifically, it provides a dual-balance co-supported force measuring device applied in a sub-transonic wind tunnel, such as figure 1 As shown, it includes a first balance-support device, a second balance-support device, a fastening device and a double support tail section 9.

[0041]The first balance-supporting device and the second balance-supporting device are respectively fastened and connected with the double support tail section 9 through the fastening device to form the whole body of the dual-balance supp...

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Abstract

The invention discloses a dual-balance joint support force measuring device and method applied to a sub-transonic wind tunnel, which solves the problem of excessive internal stress in the system caused by the inherent over-constraint and processing and assembly errors of the dual-balance system, and can effectively Improve measurement accuracy. The double balance force measuring device of the present invention comprises: the first balance-support device, the second balance-support device, the fastening device and the double support tail section; the first balance-support device and the second balance-support device pass through respectively The fastening device is fastened to the double-support tail section to form a whole of the force-measuring device supported by the double balance; , normal and lateral relative position fine-tuning. The precise measurement of aerodynamic load is realized by the method of calibrating a single balance separately, combined measurement of two balances and data synthesis. The invention has the advantages of simple device and convenient operation, and can be extended to multi-balance common support measurement technology.

Description

technical field [0001] The invention relates to a wind tunnel force measuring device and method, in particular to a dual-balance joint support force measuring device and method applied in a subtransonic wind tunnel, and belongs to the technical field of experimental aerodynamic measurement. Background technique [0002] At present, subtransonic wind tunnel dynamometer tests are mostly carried out with a single balance tail support or abdominal / back support. This type of support is characterized by a single aerodynamic load transmission path and small measurement errors. With the continuous development of aerospace technology, the research and development of new layout aircraft, rockets and other models emerge in an endless stream. The traditional single-balance support measurement method can no longer meet the high-precision force measurement requirements of some models. For example, in the dynamometric test of civil aircraft, the conventional tail support and belly / back su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/06
CPCG01M9/062
Inventor 闫万方蒋坤杨辉刘森张江
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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