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
| Feb 4, 2014
Must see: Student housing complex made with recycled shipping containers
Architect Christian Salvati's new structure is just the first step in bringing shipping container construction to New Haven, Conn.
| Feb 3, 2014
Gehry wins bid to design Berlin's tallest tower [slideshow]
The architect's "rotating cubes" scheme for the 300-unit residential tower beat out design submissions by eight other prominent firms, including Adjaye Associates and David Chipperfield Architects.
| Jan 31, 2014
Trump Hotel Collections announces luxury hotel for Rio de Janeiro
The 13-story, 171-guestroom Trump Rio will be Trump Hotel Collection’s first property in South America and the only luxury hotel in the neighborhood when it opens in 2016.
| Jan 31, 2014
LEGO, Google partner to develop 3D modeling tool for LEGO structures
The free tool, called Build, allows Chrome users to create virtual 3D structures using any shape and color in the LEGO catalog.
| Jan 31, 2014
Ultra-modern McDonald's restaurant voted one of world's best new buildings
This McDonald's, which is combined with a fuel station and recreation areas, was awarded the Best Commercial Building of the Year by architecture website ArchDaily.
| Jan 31, 2014
6 considerations for rehabbing student union buildings
Most colleges and universities feel pressure to offer the latest amenities in order to attract and retain the best and brightest students. While hauling in the bulldozer to create modern facilities is attractive in some regards, deciding to renovate can be just as effective and, in some cases, even preferable to new construction.
| Jan 30, 2014
Mayors of 10 metros unite to cut building-related climate pollution
Organizers say combined initiative could cut as much climate-change pollution as generated by 1 million cars every year, and lower energy bills by nearly $1 billion annually.
| Jan 30, 2014
See how architects at NBBJ are using computational design to calculate the best views on projects [video]
In an ideal world, every office employee would have a beautiful view from his or her desk. While no one can make that happen in real life, computational design can help architects maximize views from every angle.
| Jan 30, 2014
The evolving workplace: One designer's inspiration board
"Open office" has been a major buzzword for decades, and like any buzzword, some of the novelty has worn off. I don't believe we will abandon the open office, but I do think we need to focus on providing a dynamic mix of open and closed spaces.
| Jan 30, 2014
How reverse engineering nature can spur design innovation
It’s not enough to copy nature. Today’s designers need a deeper understanding of environmental nuance, from the biome in.