[…] Transportation II” was chaired by Robert Boog (Product Line manager Asia Pacific, Schindler) and also featured three presentations: “Advancements in Tall Building Vertical Transportation Design” by George von Klan (founding partner, GVK Elevator Consulting Services, Inc.), “Elevator Destination Dispatching – A Revolution in the Making” by James Fortune (president/principal, Fortune Shepler Consulting) and “Mitsubishi […]
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Energy efficiency, cost and other aspects are taken into consideration when examining permanent-magnet, synchronous-motor (PMSM) sensorless speed control. by Li Xiangwei, Luo Zhiqun and Wan Jianru The performance of an elevator system greatly depends on the performance of its traction machine and control method. Energy efficiency, cost and other aspects are taken into consideration when…
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An overview of William H. Bryan’s “The Mechanical Plant of a Modern Commercial Building” In December 1898, William H. Bryan (1859-1910) presented a paper titled “The Mechanical Plant of a Modern Commercial Building” at the meeting of the New York Chapter of the American Society of Mechanical Engineers. His paper provided a detailed account of…
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An in-depth report on Japan’s economic trends and challenges Japan’s Economy Economic Indicators in 2010 (Estimated) Gross domestic product (GDP) adjusted for purchasing power parity: US$4.34 trillion GDP ranking: fourth by volume, 24th per capita GDP growth: 3% GDP per capita: US$33,800 GDP by sector: agriculture (1.5%), industry (22.8%), service (75.7%) Inflation: 0.3% Labor force:…
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The Nebraska State Capitol in Lincoln recently under-went an exterior restoration project, and in August, the Lincoln Journal Star reported plans to renovate the build-ing’s four elevators. The project was expected to start within the next few months and take two years to com-plete. The 30-year-old elevators – which measure only 4-1/2 ft. X 5…
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[…] Feyrer, K. Drahtseile – Bemessung, Betrieb, Sicherheit Springer,Auflage, 2000, S. 265-268 Singenstroth, S. Drahtseile leben begrenzt Sonderdruck aus Drahtwelt, Vogel-Verlag, 9/1981 Schiffner, G. EN 81-1 Anhang N: Die Ermittlung des Sicherheitsfak-tors von Tragseilen Lift-Report, Heft 2/2000, S. 52 Wolf, E., Franz, A. Seilentwicklung für Aufzugsanlagen Lift-Report, Heft 5/2005, S. 28-32 Wolf, E., Franz, A. […]
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[…] our custom. The remaining rights (material and moral) must be decided. I would like to remind you of a friend of mine’s words about forgiveness; “When you die tomorrow, don’t make us lie behind your back.” Shrinking market conditions, firm inflation, competition to cut prices to survive and general social and economic indicators show […]
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A look at VT business practices in the late 1920s
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[…] systems with rated loads of 2500 kg and 5000 kg. Loading scenarios include loading with electric pallet truck and EN 81-20 standard 60% sill-loading load cases. The Von Mises stress distributions are observed from the selected components. This gives a rough estimation about the stress levels in the sling-car system and can be used […]
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[…] spend on the research of ropeless/counterweight-less lifts, that it would be better spent in the research of lightweight ropes. Figure 7: The first bicycle (by Baron Karl von Drais) and a modern bicycle assembly Figure 8: Belt, chains and bevel gear for power transportation for bicycle and motorcycle Figure 9: Elevator Steel Rope Data […]
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