In:
Key Engineering Materials, Trans Tech Publications, Ltd., Vol. 579-580 ( 2013-9), p. 425-429
Abstract:
Brake caliper unit with intricate structure is the last guarantee device for trains braking, while technology in this aspect is still backward. RE of advanced equipments is an effective and fast way to improve the existing situation. But efficiency and accuracy would be lost if the reversing program is planned in unappreciated way. In view of this, a whole RE scheme for the certain unit was presented in this paper. Multi-measurement was adopted that integration of conventional measurement and 3-D digital measurement was proposed. Based on analyses of structure and function of the crucial parts, feature decoupling was given obeying the principle of data segmentation. From which basic feature groups were extracted as bases of further measure method choosing. Functions of mechanism and demands of precise assembly were all taken into consideration to ensure the high accuracy and efficiency. With help of the optimal matching between structure feature and certain measurement, geometric information digitization was realized and the existing status of excessive point cloud data caused by single measurement was improved. As to part model reconstruction, characteristic curves were fitted in Imageware environment. Taking point clouds as reference, CAD models of parts were built in Pro/E environment. A general process of reverse engineering of complex structural components was stated.
Type of Medium:
Online Resource
ISSN:
1662-9795
DOI:
10.4028/www.scientific.net/KEM.579-580
DOI:
10.4028/www.scientific.net/KEM.579-580.425
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2013
detail.hit.zdb_id:
2073306-9
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