Design and process method for profile and structure of streamline locomotive

A processing method and streamlined technology, applied to railway car body components, calculations, railway car bodies, etc., can solve the problems of long production cycle and high labor intensity, and achieve high work efficiency, simple process and saving internal space.

Inactive Publication Date: 2007-07-18
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing methods are usually labor-intensive and have a long production cycle

Method used

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  • Design and process method for profile and structure of streamline locomotive
  • Design and process method for profile and structure of streamline locomotive

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Below in conjunction with accompanying drawing for further explanation:

[0021] ①The shape design method of the streamlined train head is to synthesize the input control points into a non-uniform rational B-spline NURBS (Non Uniform Rational B-Spline Surface) curve to form the main shape line; Control the molded lines in the middle, and modify these molded lines dynamically in space to make them form a set of spatial network control molded lines; then disconnect these molded lines in space, and then connect them into three-dimensional shape surface patches; connect these surface pieces in space Tangentially, the desired shape surface is formed. The generated contour surface is tested by various surface smoothing methods such as surface illumination, contour lines, and isocurvature lines to obtain the final contour surface. The final shape data can be obtained by positioning the surface with points or lines.

[0022] ②The structural design method of the head plate gir...

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PUM

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Abstract

This invention relates to train body parts kinds in railway trains and especially to streamline trains, which comprises railway speeding train, speeding gas train set and speeding automobiles or high speed magnetic floating train head part or structure design. The invention is characterized by the following: the streamline train head is composed of multiple NUBRS curved pieces to form the train head outline through dynamic automatic generation or piece adjusting; then welding the space net structure plane of the head structure with the coating iron into the streamline train head.

Description

Technical field: [0001] The invention belongs to the field of types of railway vehicles and car body parts, and in particular relates to railway streamlined trains, including railway speed-increasing locomotives, speed-increasing internal-combustion trains and trains of speed-increasing electric trains, trains of high-speed electric trains, and head shapes of high-speed maglev trains and structural design. Background technique: [0002] Existing streamlined train head shape design method has the method of adopting manual design molding line and drawing Coons shape surface or NURBS (Non Uniform Rational B-Spline Surface) curved surface with computer; A unified mathematical function to represent the method. [0003] For the design method of the head structure of streamlined trains, the head structure is designed as a load-bearing structure formed by traditional regular profiles, and the shape is connected with other composite materials; Profiles such as channel steel, angle ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61D17/02G06F17/50
CPCY02T30/32Y02T30/00
Inventor 许平田红旗梁习锋刘国伟张建姚曙光姚松聂永红高光军
Owner CENT SOUTH UNIV
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