ASTM F2137-04

Standard Practice for Measuring the Dynamic Characteristics of Amusement Rides and Devices

SIGNIFICANCE AND USE
This practice is intended for use whenever the dynamic characteristics of an amusement ride or device are to be determined. The existence of this practice is not intended to imply that there is a requirement to perform specific testing on amusement rides or devices.
The general provisions of this practice provide instrumentation specifications, data acquisition and testing procedures, and documentation requirements that when applied will improve the repeatability, reliability, and utility of the test results.
Based on the general provisions of this practice, the SARC Test specifications, when followed, will yield standardized test results regarding the patron-related, dynamic motion of amusement rides or devices. The SARC Test will facilitate both the meaningful comparison of the dynamic motion of different amusement rides or devices and the tracking of changes, if any, in the dynamic characteristics of a given ride or device.
SCOPE
1.1 This document establishes a standard practice for acquisition of data related to the dynamic characteristics of amusement rides and devices.
1.2 This practice also defines the specific requirements of a Standardized Amusement Ride Characterization Test (SARC Test) for use in characterizing the dynamic motion of an amusement ride or device.

General Information

• Status: Historical
• Publication Date: 30-Apr-2004
• ICS: 97.200.99 - Other equipment for entertainment
• Technical Committee: F24 - Amusement Rides and Devices
• Drafting Committee: F24.10 - Test Methods and Component Parts

Relations

• Replaces: ASTM F2137-01 - Standard Practice for Measuring the Dynamic Characteristics of Amusement Rides and Devices
• Effective Date: 01-May-2004
• Replaced By: ASTM F2137-04(2009) - Standard Practice for Measuring the Dynamic Characteristics of Amusement Rides and Devices
• Effective Date: 01-Feb-2009
• Referred By: ASTM F3493-23 - Standard Practice for Measuring Dynamic Characteristics of Water Slide Systems Using Instrumented Humans
• Effective Date: 01-May-2004
• Referred By: ASTM F2783-20 - Standard Practice for Design, Manufacture, Operation, Maintenance, and Inspection of Amusement Rides and Devices, in Canada
• Effective Date: 01-May-2004
• Referred By: ASTM F2291-23b - Standard Practice for Design of Amusement Rides and Devices
• Effective Date: 01-May-2004
• Referred By: ASTM F2959-23a - Standard Practice for Aerial Adventure Courses
• Effective Date: 01-May-2004

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F2137–04
Standard Practice for
Measuring the Dynamic Characteristics of Amusement
1
Rides and Devices
This standard is issued under the fixed designation F 2137; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope F —Pass band lower limit (hertz). Always equal to zero
L
(0.0) hertz.
1.1 This practice covers acquisition of data related to the
F —Pass band upper limit (hertz). The CFC designator.
H
dynamic characteristics of amusement rides and devices.
F —The corner or knee of the frequency response envelope.
1.2 This practice also defines the specific requirements of a N
Always equal to or greater than 1.667 3 F .
H
Standardized Amusement Ride Characterization Test (SARC
F —The minimum sample frequency for a sampled data
Test) for use in characterizing the dynamic motion of an S
system that corresponds to the designated CFC. Always equal
amusement ride or device.
to or greater than 12 3 F .
H
2. Referenced Documents
3.1.4.1 Discussion—F , F , F ,and F arealwaysspecified
L H N S
in hertz. While the characteristics of the CFC may be applied
2.1 SAE Standard:
2
to individual components of a data channel, the CFC is, by
SAE J211 Instrumentation for Impact Tests
definition, the frequency response envelope of the entire data
3. Terminology
channelfromthemountedtransducertothefinalrepresentation
of the acquired data.
3.1 Definitions:
3.1.5 coordinate system—three orthogonal axes that inter-
3.1.1 aliasing—a phenomenon associated with sampled
sect at an origin whose positive directions correspond to the
data systems, wherein a signal containing significant energy at
right-hand rule.
frequencies greater than one half of the system sample fre-
3.1.5.1 measurement coordinate system—a coordinate sys-
quency manifests itself in the sampled data as a lower
tem that provides the reference axes and sign convention for
frequency (aliased) signal. Aliasing can be avoided only by
the test data record(s).
limiting the frequency content of the signal prior to the
3.1.5.2 patron coordinate system—a coordinate system that
sampling process. Once a signal has been aliased, it is not
is fixed with respect to the human upper torso and oriented as
possible to reconstruct the original signal from the sampled
in Fig. 2.
data.
3.1.5.3 vehicle coordinate system—a coordinate system that
3.1.2 calibration constant—the arithmetic mean of the sen-
is fixed with respect to the ride or device being tested.
sitivity coefficients, evaluated at frequencies that are evenly
3.1.6 data channel—the entire instrumentation system for a
spaced on a logarithmic scale between F and F .
L H
single channel of data acquisition; from the transducer to the
3.1.3 calibration value—the ratio of the reference calibra-
final representation of the data, including all post-acquisition
tion system output, in engineering units relevant to the trans-
data processing that may alter the amplitude or frequency
ducer, to the data channel output, in volts, as measured at
content of the data.
constant excitation frequency and amplitude.
3.1.7 data channel full scale—the maximum usable value,
3.1.4 channel frequency class (CFC)—afrequencyresponse
in units of the physical phenomenon being measured, that may
envelope that conforms to Fig. 1 and is referred to by the value
be represented by a data channel. This value is determined by
F in hertz. The CFC frequency response envelope is defined
H
the data channel component with the lowest full-scale range.
by the boundaries shown in Fig. 1 and the following charac-
3.1.8 free-run time—a period of time during the ride cycle
teristic frequencies:
when no energy is added to the ride vehicle.
3.1.9 full-scale—the maximum usable value, in units of the
1 physical phenomenon being measured, which may be repre-
This practice is under the jurisdiction ofASTM Committee F24 onAmusement
sented by a data channel or some component thereof.
Rides and Devices and is the direct responsibility of Subcommittee F24.10 on Test
Methods.
3.1.10 “g”—the standard acceleration due to gravity at the
Current edition approved May 1, 2004. Published May 2004. Originally
surface of the earth. Defined as 32.2 ft/s/s or 9.81 m/s/s.
approved in 2001. Last previous edition approved in 2001 as F 2137 – 01.
2 3.1.11 nonlinearity—the ratio, in percent, of the maximum
Available from Society of Automotive Engineers, 400 Commonwealth Drive,
Warrendale, PA 15096. difference between a calibration value and the corresponding
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