Airplane frame part assembly stress detection and control method

A technology of assembly stress and parts assembly, applied in the direction of mechanical pressure/force control, non-electric variable control, control/regulation system, etc., can solve problems such as large assembly stress and affecting the final quality of aircraft products, and achieve structural strength and fatigue life Improve and reduce the effect of forced assembly and assembly accuracy

Inactive Publication Date: 2013-04-24
BEIHANG UNIV
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Problems solved by technology

Because the phenomenon of forced assembly is very common in the assembly process of aircraft fuselage components, there is generally a large assembly stress in frame parts, whic

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  • Airplane frame part assembly stress detection and control method
  • Airplane frame part assembly stress detection and control method
  • Airplane frame part assembly stress detection and control method

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Embodiment Construction

[0041] See figure 1 — Figure 5 , the present invention is a method for detecting and controlling assembly stress of aircraft frame parts. The aircraft frame part 1 is an integral fuselage frame made of titanium alloy material. The shape of the fuselage frame is similar to that of a "glasses" frame. It is a typical reinforced frame in the body mechanism; the detection and control method includes: determining the installation position and quantity of the three-way force sensor 5, quantitative analysis to determine the assembly stress tolerance limit of the frame part 1, and designing a detection element for the assembly stress. Three-way force sensor 5, installing three-way force sensor 5 on frame part positioner 2, observing the change of assembly stress of frame part 1 and adjusting assembly process measures to control the assembly stress level of frame part.

[0042] The present invention is an assembly stress detection and control method for aircraft frame parts. The overa...

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Abstract

Provided is an airplane frame part assembly stress detection and control method. The airplane frame part assembly stress detection and control method includes fix steps: step 1, determining installation positions and quantity of three-way force sensors; step 2, determining assembly stress tolerance limits of frame parts through quantitative analysis; step 3, designing an assembly stress detection component, namely a three-way force sensor; step 4, installing the three-way force sensor into a locator of the frame parts; step 5, observing assembly stress change of the frame parts; and step 6, adjusting assembly process measures so as to control levels of frame part assembly stress. The airplane frame part assembly stress detection and control method solves the assembly difficult problem that the assembly stress is excessive of the airplane frame parts in the process of assembly of airplane body components because of forced assembly, and achieves the purpose of detecting and controlling of the airplane frame part assembly stress.

Description

technical field [0001] The invention relates to a method for detecting and controlling assembly stress of aircraft frame parts, belonging to the technical field of mechanical engineering / aircraft assembly. Background technique [0002] With the urgent requirements of modern aircraft for long life and high reliability, the requirements for aircraft assembly quality are getting higher and higher—not only to ensure the accuracy of assembly of aircraft products, but also to ensure that aircraft products have higher structural strength and longer fatigue life. [0003] Due to the general phenomenon of out-of-tolerance appearance of the parts after processing and manufacturing, when the aircraft structural parts are assembled on the tooling, there will often be inconsistencies in the matching dimensions between the structural parts and the tooling and between the structural parts. Due to the lack of effective measures to coordinate the above problems, and to ensure the production...

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Application Information

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IPC IPC(8): G01L1/00G05D15/01
Inventor 李东升翟雨农王亮罗红宇
Owner BEIHANG UNIV
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