Effect of water cube night
night light landscape of large sports venues, will certainly is a big attraction for the 2008 Olympics. Among this, the world's largest membrane structure engineering 'water cube' particularly eye-catching, with the opening ceremony of the stadium 'bird's nest', national swimming center LED (at a cost of $41. 18 million Light emitting diode) Landscape lighting project, is undoubtedly the key Olympic venues landscape lighting engineering.
tender under the dim light of night, 'water cube' will be how to send out the charm of it dark blue?
'water cube' asymptotic end time limit, the reporter visited the Shanghai manufacturers lighting landscape engineering co. , LTD. , the end of July, the company LED a consortium in the 'water cube' LED landscape lighting project bidding, solely responsible for the lighting of the heavy and complicated engineering.
'LED landscape lighting is a' water cube 'the last procedure of systems engineering, like to decorate a house, finally lit the lamp, we are doing this job! 'Fu west light night just came back from Beijing back to Shanghai, the lighting landscape commander slightly tired, but speaking of project meaning expression and float in the sky. Beautiful water cube
by 36000 sets of special landscape lamps and lanterns of build, 'water cube' will be the greatest degree of night show the characteristics of the exquisitely, with 'masculine' of the 'bird's nest' in the east.
inspired designers from nature water, holy shangri-la, colorful jade pool, light on the charge of dew, pure tianshan ice crystals, through the movement of lamplight illume effect is simulated various temperament of 'water', explore the light refraction and transmission and reflection in the water, ultimately achieve the result of above one integrated mass.
the ideas of art and design is just beginning, because of the 'water cube' large-scale building periphery adopts ETFE ( Polyvinyl fluoride) Membrane material, its trendy 'bubble pack' for landscape lighting to a lot of technical problems.
therefore, lighting engineer Wang De linyi years led the 'water cube' planning to 10 times photosynthetic efficiency experiment was carried out on site. 'Film completely different with ordinary wall lighting lighting way, it is in the middle of the drum, some is divided into two layers, three layers, four layers, bump up middle degree is different, how to use a fixed way of cast light show it? '
cast light uniformity is the most difficult to conquer in the photosynthetic efficiency experiment,' the film is very strange, a few small membrane cloth lamp can the whole film very bright dot is very uniform, big film you order a lot of light, but the middle place is always a corner, it is not bright, you look outside effect is affected, the width of the membrane or is 9 to 10 meters, to penetrate the lining to the outer membrane, this is a very challenging problem, now we are still in the continuous improvement. '
the beijing-shanghai run back and forth, pay the west light to project progress rather worry about:' top surface elevation, the basic shape of membrane 24, according to its position, Angle, Such as hexagonal flat and side, etc. ) Different, probably more than 240 kinds of derived shape, every place in the change! Make a screw, originally don't see any problem on the drawings, to the scene and over, pretending to be not. Is on the side of the membrane is not ventilation, a tracheal go over there! A total of 1578 film, how to use this pipe one by one to send the past? So many bridge, how to avoid this things? We don't see on the drawings, design good, you at home to the site may not be able to put on, time is very short, feel now can be calculated by hours every day! '
LED the world's largest membrane structure architecture landscape lighting project
based on the giant membrane structure engineering,' water cube 'the art of landscape lighting will be the world's largest LED landscape lighting project. Pay west light said: 'foreign rarely built such a large volume of membrane structures, to tell the truth, the foreigner didn't also the chance to try the application of such large-scale experiment. '
the hundreds of thousands of leds, tens of thousands of distributed control node, a few hundred of industrial field switches, on the whole LED distributed control system is put forward strict technical requirements.
'the water cube the system reliability engineering is a biggest problem, suddenly a light lit up, and you want to play on the point how to do? This is a problem, hundreds of thousands of leds, you have to make sure it every single very stable! '
Beijing summer high temperature environment presents huge challenges for control system. 'It (the
Film) Work environment has a limit, the day Beijing temperature is 32 degrees, the top of the membrane temperature reached 71 degrees, the temperature on the reliability of the system design is very stringent requirements, as you know, our desktop under thermal environment is crashed, because it is a civilian products, civilian level limit temperature of 45 degrees. We choose industrial-grade material design, and even military level, military level cap is 85 degrees. Once the ventilation system to fail, we are working it more reliable, this is what we want to ensure. ”