Analyzing Amusement Park Analyzing Amusement Park Graphs Graphs California’s Great America 2012 California’s Great America 2012 Clarence Bakken Clarence Bakken Teacher Steering Committee Teacher Steering Committee
Dec 13, 2015
Analyzing Amusement Park GraphsAnalyzing Amusement Park Graphs
California’s Great America 2012California’s Great America 2012
Clarence BakkenClarence Bakken
Teacher Steering CommitteeTeacher Steering Committee
Goals of this ActivityGoals of this Activity
• Help students understand graphs they obtain Help students understand graphs they obtain via electronic data collectionvia electronic data collection
• Help teachers assist students in Help teachers assist students in understanding their dataunderstanding their data
• Attain greater understanding of graphical Attain greater understanding of graphical informationinformation
Vertical Acceleration/ForcesA
ltit
ude
(m)
Ver
tica
l (m
/s/s
)
Vertical ForcesVertical Forces
Bottom of Hill(Start of loop)
Dip at end of initial section
Corkscrew
Alt
itud
e (m
)L
ater
al (
m/s
/s)
Lateral ForcesLateral Forces
Left turn at end of run-on
Corkscrew
Left turn thru corkscrew
Left turn top of lift hill
Right turnbefore corkscrew
Lateral Acceleration/Forces
Longitudinal Acceleration/Forces
Longitudinal ForcesLongitudinal Forces
Lift Hill
Held back -Pitching forward…
Pushed forward -“Falling” backward
Vertical & Longitudinal
Ver
tica
l (m
/s/s
)L
ongi
tudi
nal (
m/s
/s)
Vertical and LongitudinalVertical and LongitudinalMaximum Longitudinal Force - mid-level Vertical Force
Maximum Vertical Force –zero Longitudinal Force
Vertical Acceleration/Force
Vertical ForcesVertical Forces
44.9 sec / 11 periods = 4.1 sec/period
~2g’s
~1.8 g’s
Lateral Acceleration/Force
Lateral ForcesLateral Forces
30 periods = 33 sec
T = 1.1 sec
Midpoint = 10 m/s/s = 1 g
Ride Profile & Vertical Force
Alt
itud
e (m
)V
erti
cal (
m/s
/s)
Complete Set of GraphsComplete Set of Graphs
Parabolic
3 sec
ConclusionConclusion
• Need to know direction of accelerometer(s)Need to know direction of accelerometer(s)
• Relate to orientation of riderRelate to orientation of rider
• Relate to location on the rideRelate to location on the ride
• Give students opportunity to scour over data, Give students opportunity to scour over data, too!too!
• Smooth the data for easier analysisSmooth the data for easier analysis