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
Sponsored | | Nov 6, 2014
To build your strongest team, don't hire clones
To attract and keep talented individuals who are different than you, Entrepreneur magazine suggests a few foundational principles. SPONSORED CONTENT
| Nov 6, 2014
Hines planning tall wood office building in Minneapolis
The Houston-based developer is planning a seven-story wood-framed office building in Minneapolis’ North Loop that will respect the neighborhood’s historic warehouse district look.
| Nov 6, 2014
Studio Gang Architects will convert power plant into college recreation center
The century-old power plant will be converted into a recreation facility with a coffee shop, lounges, club rooms, a conference center, lecture hall, and theater, according to designboom.
Sponsored | | Nov 6, 2014
Drilling deeper: On the ground insights from the Marcellus Shale region
The Marcellus Shale region is expansive, stretching from upstate New York through Pennsylvania to West Virginia. It’s an exciting time to live and work in the area. SPONSORED CONTENT
| Nov 5, 2014
AEC firms leverage custom scripts to bridge the ‘BIM language gap'
Without a common language linking BIM/VDC software platforms, firms seek out interoperability solutions to assist with the data transfer between design tools.
| Nov 5, 2014
Survey: More than 75% of workload takes place without face-to-face interactions
With the rise of technology, much of the workday—even the most productive morning hours—is spent corresponding via email or conference call, according to a recent survey of corporate workers by Mancini•Duffy.
| Nov 5, 2014
The architects behind George Lucas' planned Chicago museum unveil 'futuristic pyramid'
Preliminary designs for the $300 million George Lucas Museum of Narrative Art have been unveiled, and it looks like a futuristic, curvy pyramid.
Sponsored | | Nov 5, 2014
How to maximize affordability and sustainability through all-wood podiums
Wood podium construction takes an age-old material and moves it into the 21st century.
| Nov 4, 2014
Zaha Hadid's first building in Shanghai debuts
Sky SOHO is the third in a trilogy of SOHO China developments designed by Zaha Hadid Architects.
| Nov 4, 2014
HOK breaks ground on colossal research complex for LG in Seoul
Located in Seoul’s Magok District, the LG Science Park provides facilities to support innovative research and industrial prototyping. HOK designed phase one of the master plan and six of the laboratory and office buildings.
