MỘT PHƯƠNG PHÁP XÁC ĐỊNH GIAO TUYẾN CÁC MẶT TRÒN XOAY THÔNG QUA CÁC MẶT CẦU PHÙ TRỢ

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Tác giả: Quốc Dũng Nguyễn, Thị Thu Nga Nguyễn, Thu Hương Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học & Công nghệ - Trường Đại học Công nghiệp Hà Nội, 2023

Mô tả vật lý: tr.136

Bộ sưu tập: Metadata

ID: 341324

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Accurately determining the joint intersection between large-sized rotating circles in the oil and gas and chemical industries will improve quality, reduce costs and machining time. Currently, in the design and construction, CAD software is often used to determine the joint intersection and give the coordinates of the intermediate points on the intersection for the preparation of the joint surface and the joint processing. . However, for large-sized details such as tanks, tanks, pipelines in the petroleum and chemical industries, the process of converting from drawings to large-scale fabrication in actual field still has difficulties. certain towel. The joint trajectory construction and manual machining must be carried out on the parts participating in the joint. Therefore, besides CAD knowledge and skills, it is still necessary to have thinking about graphic geometry so that the process of building intersections on the surface of large rotating parts is accurate, fast and efficient. This paper presents a method to determine the intersection of rotating circles through auxiliary spheres with the necessary geometric thinking to improve the efficiency of the process of using CAD software for designers and builders in the field. petroleum and chemical industry.Xác định chính xác giao tuyến ghép nối giữa các mặt tròn xoay có kích thước lớn trong công nghiệp dầu khí và hóa chất sẽ nâng cao được chất lượng, giảm chi phí và thời gian gia công. Hiện nay, trong thiết kế và thi công thường sử dụng các phần mềm CAD để xác định giao tuyến ghép nối và đưa ra tọa độ của các điểm trung gian trên giao tuyến phục vụ việc chuẩn bị bề mặt mối ghép và gia công ghép nối. Tuy nhiên, đối với các chi tiết có kích thước lớn như bồn, bể, đường ống trong công nghiệp dầu khí và hóa chất quá trình chuyển từ bản vẽ sang gia công chế tạo kích thước lớn tại thực tế hiện trường vẫn có những khó khăn nhất định. Phải tiến hành xây dựng quĩ đạo ghép nối và gia công một cách thủ công trên các chi tiết tham gia mối ghép. Do đó, bên cạnh các kiến thức và kỹ năng về CAD vẫn cần phải có tư duy về hình học họa hình để quá trình xây dựng giao tuyến trên bề mặt chi tiết tròn xoay kích thước lớn được chính xác, nhanh chóng và hiệu quả. Bài báo này trình bày một phương pháp xác định giao tuyến các mặt tròn xoay thông qua các mặt cầu phù trợ với tư duy hình học cần thiết để nâng cao hiệu quả quá trình sử dụng phần mềm CAD cho người thiết kế và thi công trong công nghiệp dầu khí và hóa chất.

1. Đọc trực tuyến

1. Đọc trực tuyến

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