Mitsubishi Electric Corp announced the overview of its ultra-high-speed elevator developed for the 632-meter Shanghai Tower under construction in Shanghai, China.
For the traction motor of the elevator, Mitsubishi Electric employed a parallel drive system that uses two three-phase winding coils for each motor and controls the two three-phases with two control panels. By using two compact control panels, the company enabled to design the layout of a machinery room more freely while increasing output power. The operation of the elevator is scheduled to begin in 2014.
To realize the world's fastest speed of 1,080 m per minute, Mitsubishi Electric used new technologies for higher safety, lifting height and comfort as well as for the motor for the winch. Specifically, to enhance safety, the company employed a two-tiered brake (the company's former product has a one-tiered brake) for emergency stop and used fine ceramic with a heat resistance of up to about 1,000°C for the brake shoe.
The buffer (shock absorber) at the bottom of the elevator shaft is comprised of three tiers (the former product has a one-tiered butter) and has a stroke of 7.3 meters, which is about 30% shorter than the stroke of the former product's buffer.
For the "sfleX-rope," a rope for the winch, Mitsubishi Electric employed a new structure so that it can hold a greater weight of a longer rope. The company improved the density of the rope by using a concentric-layered steel wire and filled the gap between the layers with plastic.
As a result, the company increased breaking load by 85% while increasing mass per unit length only by 18%. The new rope is less extensible. So, when people get in the elevator, it does not shake vertically much.
This time, Mitsubishi Electric newly developed a control cable that is 20% lighter than the one used for the former product.
For the comfort, the new elevator is equipped with the "active roller guide," which detects vibration and applies anti-phase vibration to it so that the vibration of the car is reduced. While two units of the active roller guide are installed in the bottom of the former product, Mitsubishi Electric added two more to the upper side of the new elevator because a different type of vibration is applied to the new product when it is moving at an ultra-high speed. As a result, vibration was reduced to about 1/3 that of the former product.
Furthermore, the new elevator is equipped with a streamlined aerodynamic car cover that reduces air resistance as well as an air pressure control device consisting of an air blower, a duct and a box for switching between air intake and emission. As a result, rapid changes in atmospheric pressure can be prevented, reducing passengers' feeling of fullness in the ear. BD+C
Related Stories
| Jun 8, 2012
Allsteel names Kris Yates to head architectural products group
Yates is responsible for the start up, launch and ongoing sales and marketing of Allsteel’s new Beyond movable walls.
| Jun 8, 2012
Chestnut Hill College dedicates Jack and Rosemary Murphy Gulati complex
Casaccio Yu Architects designed the 11,300-sf fitness and social complex.
| Jun 7, 2012
Waterline exhibition displays visions for re-thinking the Chicago River
The designs of Waterline showcase why the Chicago River should once again be considered the city’s most important asset and sets the stage for increased awareness, education and reinvention of the River.
| Jun 7, 2012
WDMA and FMA to affiliate and integrate operations
Over the coming months both organizations will begin the process of formalizing the details of the agreement for final approval by both organizations, with the formal change expected to take effect in January 2015.
| Jun 7, 2012
Craig joins Cannon Design as associate principal
Craig will work closely with the firm's Corporate/Commercial Interiors leadership to help facilitate initiatives that strengthen awareness around workplace innovation and offer counsel on strategic workplace decisions.
| Jun 7, 2012
Stantec publishes 2011 corporate Sustainability Report
Stantec's fifth annual Sustainability Report was prepared in accordance with the internationally recognized G3.1 Sustainability Reporting Guidelines, developed by the Global Reporting Initiative.
| Jun 6, 2012
KPF designs tower for Yongsan IBD
The master plan, created by Studio Daniel Libeskind, is a dynamic urban environment containing contributions from 19 different architects practicing in diverse locations around the globe.
| Jun 6, 2012
SOM urges Chicago tenants to partner with landlords to cut energy use
Tenants can exceed building energy challenge targets recently announced by Mayor Emanuel.
| Jun 6, 2012
KLMK Group awarded contract with Parkland Health & Hospital System in Texas
KLMK will also provide planning guidance in all aspects of the project related to facility activation.
| Jun 5, 2012
Cannon Design joins forces with Peter Ellis New Cities
Peter Ellis will now lead Cannon Design's urban planning and city design practice in collaboration with the firm's executive leadership.