Abstract
There are a lot of complex tubing in aviation, aerospace, automobile, and other industrial machinery and equipment. The reliable assembly of these tubing directly affects the quality of the product...
Highlights
Installation of tubes is widely encountered in the field of aerospace, automobiles, railway industry, and vessels
Bend tubes are widely installed in aviation, aerospace, automobile, and other industrial machinery or equipment
Because of the complexity of bend tubes’ topology and shape, current approaches cannot account for the natural manufacturing and assembly variability that occurs in assembly of bend tubes
Summary
Installation of tubes is widely encountered in the field of aerospace, automobiles, railway industry, and vessels. The key points contain the tangent points on the tubes’ curved center line and the two endpoints, which can be applied for analyzing the assembly tolerance of bend tube.[13] According to the results of analysis, standard model can be produced for fitting tube to judge the tube assembly ability This method is a traditional and regular way to evaluate the tube assembly performance, but no geometric errors can be fed back to show how different the manufactured tubes’ shape from the designed model. If the evaluated tube is only considered the ability to assembly as the targets 1 (both the ends matching the assembly condition) explained in section ‘‘Introduction’’, the virtual fixtures on two endpoints could have a high weighted value toward to 1.
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