Mae[577] final project_mandeep_singh

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new escalator design

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Mae[577] final project_mandeep_singh

  1. 1. By : Mandeep Singh<br />Graduate Student (Mechanical Engineering)<br />University at Buffalo<br />
  2. 2. How the Escalators Work?<br />Motor<br />Chain<br />Rail<br />Truss<br />Steps<br />Idle Stairs returning<br />Courtesy : HowStuffworks.com<br />
  3. 3. Major Market Players<br />Otis<br />Mitsubishi<br />Schindler <br />ThyssenKrupp<br />Courtesy : http://www.lift-report.de/index.php/news/361/373/Industry-report---Lifts-and-escalators-an-industry-in-flux <br />
  4. 4. Why not we use the idle stairs ! <br />Instead use rest of the stairs for getting down<br />
  5. 5. Complicacies<br />Design (change in Geometry)<br />Rail(Tracks) configuration<br />Interferences<br />Motion<br />
  6. 6. Change in the shape of the step<br />If we modify the shape, we can turn the steps easily for coming downstairs<br />
  7. 7. Track (Rail Design)<br />Scheme at the top<br />Scheme at the bottom <br />
  8. 8. Rail and Step Assembly at the top<br />Distance between rails<br />
  9. 9. Assembly while climbing upstairs<br />Rails are parallel<br />
  10. 10. Assembly while coming downstairs<br />Distance between rails<br />
  11. 11. The whole assembly for steps and rails<br />Up-Stairs<br />Downstairs<br />
  12. 12. The Scheme<br />
  13. 13. Handrails<br />
  14. 14. Truss Supporting Structure<br />Supports the whole assembly<br />rigid in terms of strength<br />Use of truss reduces weight<br />
  15. 15. Interference<br />Interference between Rails<br />Interference areas<br />
  16. 16. Stress Analysis on the Connecting link<br />Material change from SS304 to LAS<br />Stress & Displacement Analysis<br />Displacement Plot<br />
  17. 17. Motion Analysis while Turning<br />Path Trace<br />X-Velocity<br />X-acceleration<br />
  18. 18. Motion using Path Mate<br />
  19. 19. Motion using Path Mate<br />
  20. 20. Final Assembly<br />
  21. 21. Pros of the new design<br />It can reduce the constructional cost<br />The structure will become light in weight since we will have less number of steps.<br />New aesthetic design will try to bring new market in the product line.<br />It removes the shimming wave(described later) effect that elongates the chain during operation as in traditional design<br />The electric power required for to run the escalator will be less.<br />
  22. 22. Cons of the new design<br />The preliminary research for manufacturing new design will incur cost of launching new product<br />The new design can only be established when we want to use two sets of escalator i.e., when we definitely want one set for going up and one set for moving down.<br />It required more horizontal space for turning the step compared to the conventional setup.<br />
  23. 23. Conclusions <br />The new Design is cost effective<br />Reduces weight <br />Reduces power consumption<br />Provide an new market segment<br />CAN BE IMPLEMENTED !<br />
  24. 24. Bibliography and websites<br /> <br />www.schindler.com<br />www.otisworldwide.com<br />www.mitsubishi-elevator.com<br />www.thyssenkruppelevator.com<br />http://www.google.com/patents?id=O14UAAAAEBAJ&printsec=abstract&zoom=4&source=gbs_overview_r&cad=0#v=onepage&q&f=false<br />http://www.parametrx.com/KONE/Eco3000/templates/basicAndSpec.asp<br />http://www.lift-report.de/index.php/news/361/373/Industry-report---Lifts-and-escalators-an-industry-in-flux<br />http://www.goengineer.com/RederingTips<br />www.wikipedia.com<br />
  25. 25. Any question?<br />Thank you <br />

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