大型球形容器的等倾角盘梯构形曲线
Shape-forming Curve of Equal Dip Angle Spiral Stairway of Large Spherical Vessel
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- DOI:
- 作者:
- 赵学纯
Zhao Xuechun
- 作者单位:
- 空军工程学院
- 关键词:
- 摘要:
- 作为大型球形容器主要附属设备之-的盘梯,其最佳设计方案应该是等倾角上升的。但目前在国内尚未见到有关等倾角盘梯的计算与绘图的资料。本文应用工程图学曲面相交理论和有关数学知识,通过图解法由两族辅助曲面与-个已知球面相交作出梯内缘构形曲线的两面投影图;还列出了计算该曲线上点的坐标解析式;利用微机计算该曲线上点的坐标值并绘制与图解法完全吻合的该曲线的两面投影图。
The spiral stairway is one‘ of the main auxiliary equipments of large spherical vessels.lts optimum design should make it to rise up with equal dip angle，but no information about calculating and drawing for the dip atlgle spiral stairway has been seen at pr}setlt within our country .Every shape-form ing curve of equal dip angle spiral stair- way is established on the bases of stair inner-periphery shape-formingcurve which has the equal dip angle formed by spherical surface and ground surface.By applying the theory of curve surface cross of engi-veering and mathematics knowledge，and also using two groups of supple-mentary curve surface crossed by a known spherical surface; the two sides pro jecti on of shape-forming curve on the spiral stairway inner periphery are given through diagram .T he analytic form ula of . Boor-dinate points on the curve are listed.T he coordinate points value onthe curve are calcul}teb and the two sides projection, which are com-pletely same as the diagram method is drawn by compurer.It offered the theory for further discuss the structural design and computing for the equal dip angle spiral stairway .1988,2(2): 4-9 收稿日期：1987-8-19参考文献：
[1] 洪德晓:《球形容器设计》，上海科学技术出版社. 1985年7月第1版
[2] 赵学纯:球形容器盘梯构形曲线的图解与解析，《陕西工程图学》，1982年第1期
[3] 陈学文:微型计算机在圆球面等高浓盘梯的设计、计算及绘制投影图中的应用，《工程图学动态》，1985年第3期
[4] C·A·弗罗洛夫著，北京工业学院制图教研室译:《画法几何学》，高等教育出版社
[5] 赵学纯:大型形球容器等倾角盘梯构形曲线的图解与解析.《空军工程学院学报》，1986年第2期