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Thin-walled cylinder mirror image cutting modeling method based on shell theory and supported by follow-up air floatation

A modeling method and technology of thin-walled tubes, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problem that the vibration characteristics of thin-walled tubes cannot be well represented

Pending Publication Date: 2022-05-10
CHINA NORTH ENGINE INST TIANJIN
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Problems solved by technology

[0004] In view of this, the present invention aims to propose a thin-walled cylinder image cutting modeling method based on the shell theory of the follow-up air bearing support to solve the problem that the existing modeling method cannot well represent the vibration characteristics of the thin-walled cylinder. question

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  • Thin-walled cylinder mirror image cutting modeling method based on shell theory and supported by follow-up air floatation
  • Thin-walled cylinder mirror image cutting modeling method based on shell theory and supported by follow-up air floatation
  • Thin-walled cylinder mirror image cutting modeling method based on shell theory and supported by follow-up air floatation

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Embodiment Construction

[0064] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0065] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a follow-up air floatation supporting thin-walled cylinder mirror image cutting modeling method based on the shell theory. The method comprises the following steps that S1, systematic dynamics modeling is conducted on a workpiece; S2, systematic dynamics modeling is conducted on a boring rod; s3, modeling is carried out on the dynamic cutting force of the cutting process system; S4, modeling is carried out on the cutting process system without support; and S5, modeling is carried out on the cutting process system with follow-up air floatation support. According to the follow-up air floatation supporting thin-walled cylinder mirror image cutting modeling method based on the shell theory, complex modal shape and workpiece rotation of a thin-walled cylinder in the circumferential direction and the axial direction are considered, and turning / boring machining of the thin-walled cylinder is converted into vibration response of a cylindrical shell under the rotating load; a follow-up air flotation supporting device commonly used in production is added, the number of supports and the positions of supporting points can be adjusted according to the process, and the vibration response of the thin-walled cylinder part under the mirror image machining process can be simulated truly.

Description

technical field [0001] The invention belongs to the field of cutting and processing of metal materials, and in particular relates to a thin-wall cylinder mirror image cutting modeling method based on shell theory for follow-up air bearing support. Background technique [0002] At present, thin-walled parts represented by engine blades and thin-walled cylinders are widely used in aerospace, nuclear industry and other fields due to their light weight, compact structure, and superior comprehensive performance. In general, thin-walled workpieces often require high machining accuracy and surface quality, but the rigidity of thin-walled structures is poor, and large deformation and vibration will occur during processing. In addition, the machining system will vibrate under certain working conditions, which will have a serious impact on the quality of the machined surface, tool life and even the accuracy of the machine tool. Therefore, it is very necessary to study the stability o...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06F30/20G06F119/14
CPCG06F30/17G06F30/20G06F2119/14
Inventor 赵良宇朱鸿儒孙婷婷付博伟王剑豪马青怡于凡赵成微高健于鸿飞
Owner CHINA NORTH ENGINE INST TIANJIN
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