An Obstacle Avoiding Vacuum Cleaner Robot (MAE 4733 Term Final Project Presentation)
Mae[577] final project_mandeep_singh
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Innovative Design for escalator
•MAE 577
By : Mandeep Singh
Graduate Student (Mechanical
Engineering)
University at Buffalo
Motor
Chain
Rail
Truss
Steps
Courtesy : HowStuffworks.com
Idle Stairs
returning
Otis
Mitsubishi
Schindler
ThyssenKrupp
Courtesy : http://www.lift-report.de/index.php/news/361/373/Industry-
report---Lifts-and-escalators-an-industry-in-flux
Instead use rest of the stairs for getting
down
Design (change in Geometry)
Rail(Tracks) configuration
Interferences
Motion
If we modify the shape, we can turn the
steps easily for coming downstairs
Scheme at the top
Scheme at the bottom
Distance
between
rails
Rails are
parallel
Distance
between rails
Supports the
whole
assembly
rigid in terms of
strength
Use of truss
reduces weight
Interference between Rails
Interference
areas
Material change from SS304 to LAS
Stress &
Displacement
Analysis
Displacement
Plot
Path
Trace
0.00 2.20 4.40 6.60 8.80 11.00 13.20 15.40 17.60 19.80 22.00
Time (sec)
-5
70
145
220
295
CM
Ve
locit
y -
X (
mm
/se
c)
1.80 4.00 6.20 8.40 10.60 12.80 15.00 16.90
Time (sec)
-102
-59
-16
27
70C
M A
cce
l -
X (
mm
/sec
**2
)
X-Velocity X-acceleration
It can reduce the constructional cost
The structure will become light in weight since we will have less number of steps.
New aesthetic design will try to bring new market in the product line.
It removes the shimming wave(described later) effect that elongates the chain during operation as in traditional design
The electric power required for to run the escalator will be less.
The preliminary research for manufacturing new design will
incur cost of launching new product
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.
It required more horizontal space for turning the step compared
to the conventional setup.
The new Design is cost effective
Reduces weight
Reduces power consumption
Provide an new market segment
CAN BE
IMPLEMENTED !
Bibliography and websites
www.schindler.com www.otisworldwide.com www.mitsubishi-elevator.com www.thyssenkruppelevator.com http://www.google.com/patents?id=O14UAAAAEBAJ&printsec=abstra
ct&zoom=4&source=gbs_overview_r&cad=0#v=onepage&q&f=false http://www.parametrx.com/KONE/Eco3000/templates/basicAndSpec.a
sp http://www.lift-report.de/index.php/news/361/373/Industry-report---
Lifts-and-escalators-an-industry-in-flux http://www.goengineer.com/RederingTips www.wikipedia.com
Thank you