GrabCAD 模型信息
Fog billboard + calculations · 模型 42846
During developing this project the main aim was to provide reliable and effective work of Fog Billboard (FB) at any weather conditions and without interference of specialists as for its adjusting and repair. F.B. will be maximally effective and reliable at minimal cost and minimal time for its construction. Maximally effective use is 1 m3 of space. I hope I’ve managed to do it. And I hope you will appreciate it. Fog Billboard is a hybrid structure of net which includes all advantages of cylindrical and cubic methods of stretching net. FB consists of a small collector of fog, overall dimensions 2x2x2m. There is metal net (21.3 m2) outside the collector. Thanks to concave system of a stretch it most effectively directs a stream of damp air on net, at any speed of wind and its direction, it doesn’t need rotary mechanism. The frame with ease can stand direct wind 70 mph, with the maximum tension 6MN/sq.m. 0.7 mm shifting is possible. The system can be adjusted within 1.5m - 3m over the level of land. FB weighs 177 kg. The structure can be assembled with the only key S22. At first I decided to see how fog behaves passing through usual net. Using much smaller copy of FB I simulated wind stream at a flat net. If air stream is direct the results of the experiment are excellent, but if the wind is angular the stream passed by. I also compared the areas of nets at dimensions 1x1x1m. If the area is flat, it has 1m2. This structure of net is very simple, but not very effective. The next step was the space structures. At cubic structure area is 4m2. At direct steam of wind, fog stream crossed through construction and contacted with net several times. But if the wind stream in cube center is angular there is stagnation area of air. It doesn’t give chance to normal passing of new damp air. Cylindrical structure has smaller area of net (3.14 m2) and bigger streamlining. Fog doesn’t pass through the net, and flows round it rolling from edges. Therefore fog contacts with net once. Later I decided to unite these 2 structures. The idea “Fog billboard” was born in such a way. At direct stream of air the main stream is directed by the structure to its corners. Part of fog settles there and the part of fog goes further to angular area, still the part of fog passed central and goes to rear area. At angular stream of air, which will be mainly present at real weather conditions, 90% of fog goes to net and several times contacts with the net (at “entrance” an...
- 格式
- Other、Parasolid、SOLIDWORKS、STEP / IGES、Rendering、KeyShot
- 分类
- Industrial design、Machine design
- 标签
- fognet
- 数据更新
- 2026-09-21T17:00:38Z
