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 30, 2014
Research finds continued growth of design-build throughout United States
New research findings indicate that for the first time more than half of projects above $10 million are being completed through design-build project delivery.
| Jun 30, 2014
Narrow San Francisco lots to be developed into micro-units
As a solution to San Francisco’s density and low housing supply compared to demand, local firms Build Inc. and Macy Architecture each are to build micro-unit housing in a small parcel of land in Hayes Valley.
| Jun 30, 2014
Arup's vision of the future of rail: driverless trains, maintenance drones, and automatic freight delivery
In its Future of Rail 2050 report, Arup reveals a vision of the future of rail travel in light of trends such as urban population growth, climate change, and emerging technologies.
| Jun 30, 2014
4 design concepts that remake the urban farmer's market
The American Institute of Architects held a competition to solve the farmer's markets' biggest design dilemma: lightweight, bland canopies that although convenient, does not protect much from the elements.
| Jun 30, 2014
Harvard releases the State of the Nation’s Housing 2014
Although the housing industry saw notable increases in construction, home prices, and sales in 2013, household growth has yet to fully recover from the effects of the recession, according to a new Harvard University report.
| Jun 30, 2014
OMA's The Interlace honored as one of the world's most 'community-friendly' high-rises
The 1,040-unit apartment complex in Singapore has won the inaugural Urban Habitat award from the Council on Tall Buildings and Urban Habitat, which highlights projects that demonstrate a positive contribution to the surrounding environment.
| Jun 30, 2014
Work starts on Jean Nouvel-designed European Patent Office in the Netherlands [slideshow]
With around 80,000 sm and a budget of €205 million self-financed by the EPO, the complex will be one of the biggest office construction sites ever in the Netherlands.
| Jun 30, 2014
Growth of crowdfunding, public-private partnerships among top trends in architecture marketplace
A new report by the American Institute of Architects highlights several emerging trends in the architecture marketplace, including the growth of the P3 project delivery model and designing for health.
| Jun 30, 2014
Report recommends making infrastructure upgrades a cabinet-level priority
The ASCE estimates that $3.6 trillion must be invested by 2020 to make critically needed upgrades and expansions of national infrastructure—and avoid trillions of dollars in lost business sales, exports, disposable income, and GDP.
| Jun 30, 2014
Gen X, not Baby Boomers, spending the most money on homes [infographic]
It turns out that Generation X, who have the highest incomes of the three generations surveyed, are paying the highest home payments and tend to have the largest households.
