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Sign Convention for Vehicle Crash Testing

Safety Test Instrumentation Stds Comm
  • Ground Vehicle Standard
  • J1733_201811
  • Current
Published 2018-11-14 by SAE International in United States

In order to compare test results obtained from different crash test facilities, standardized coordinate systems need to be defined for crash test dummies, vehicle structures, and laboratory fixtures. In addition, recorded polarities for various transducer outputs need to be defined relative to positive directions of the appropriate coordinate systems. This SAE Information Report describes the standardized sign convention and recorded output polarities for various transducers used in crash testing.

Test Device Head Contact Duration Analysis

Safety Test Instrumentation Stds Comm
  • Ground Vehicle Standard
  • J2052_201607
  • Current
Published 2016-07-12 by SAE International in United States
This methodology can be used for all calculations of HIC, with all test devices having an upper neck triaxial load cell mounted rigidly to the head, and head triaxial accelerometers.

Calculation Guidelines for Impact Testing

Safety Test Instrumentation Stds Comm
  • Ground Vehicle Standard
  • J1727_201502
  • Current
Published 2015-02-03 by SAE International in United States
This SAE Recommended Practice presents a series of standard calculations and numerical methods for processing safety test instrumentation data that has been acquired during impact tests with instruments installed in ATD’s (crash test dummies), vehicle structures, and laboratory fixtures. The output data from performing these calculations may have applications that include energy analysis, biomechanical analysis, regulation compliance, or other purposes. However, application of the output data from these calculations is outside the scope of this document. It is the intent of this document to present a basic set of calculations that are applicable to test labs that follow the practices set forth by SAE J211-1, SAE J211-2, SAE J2570, and SAE J1733. For the calculations that are described in other sources, the relevant documents are referenced.
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Instrumentation for Impact Test—Part 2: Photographic Instrumentation

Safety Test Instrumentation Stds Comm
  • Ground Vehicle Standard
  • J211/2_201406
  • Current
Published 2014-06-16 by SAE International in United States
The purpose of this SAE Recommended Practice is to define criteria of performance for an optical data channel when numerical time and space data are taken from the images to analyze impact test results.
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Instrumentation for Impact Test - Part 1 - Electronic Instrumentation

Safety Test Instrumentation Stds Comm
  • Ground Vehicle Standard
  • J211/1_201403
  • Current
Published 2014-03-31 by SAE International in United States
This recommended practice outlines a series of performance recommendations, which concern the whole data channel. These recommendations are not subject to any variation and all of them shall be adhered to by any agency conducting tests to this practice. However, the method of demonstrating compliance with the recommendations is flexible and can be adapted to suit the needs of the particular equipment the agency is using. It is not intended that each recommendation be taken in a literal sense, as necessitating a single test to demonstrate that the recommendation is met. Rather, it is intended that any agency proposing to conduct tests to this practice shall be able to demonstrate that if such a single test could be and were carried out, then their equipment would meet the recommendations. This demonstration shall be undertaken on the basis of reasonable deductions from evidence in their possession, such as the results of partial tests. In some systems it may be necessary to divide the whole channel into subsystems, for calibration and checking purposes. The recommendations have been…
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Test Device Head Contact Duration Analysis

Safety Test Instrumentation Stds Comm
  • Ground Vehicle Standard
  • J2052_201101
  • Historical
Published 2011-01-05 by SAE International in United States
This methodology can be used for all calculations of HIC, with all test devices having an upper neck triaxial load cell mounted rigidly to the head, and head triaxial accelerometers.
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Calculation Guidelines for Impact Testing

Safety Test Instrumentation Stds Comm
  • Ground Vehicle Standard
  • J1727_201002
  • Historical
Published 2010-02-15 by SAE International in United States
The scope was changed to provide focus on the details of performing the included calculations and to remove any inference, implication, or suggestion that this Recommended Practice has the purpose of predicting the risk or probability of injury.
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Performance Specifications for Anthropomorphic Test Device Transducers

Safety Test Instrumentation Stds Comm
  • Ground Vehicle Standard
  • J2570_200908
  • Current
Published 2009-08-12 by SAE International in United States
This SAE Information Report defines the minimum performance specifications for accelerometers, load cells, and angular position transducers used within Anthropomorphic Test Devices (ATDs) when performing impact tests per SAE J211, “Instrumentation for Impact Test”. This report does not define methodology and equipment for performing verification tests of the transducers. It is intended that any agency proposing to conduct tests in accordance with SAE J211 shall be able to demonstrate that the transducers they use would meet the performance requirements specified in this document.
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Instrumentation for Impact Test—Part 2: Photographic Instrumentation

Safety Test Instrumentation Stds Comm
  • Ground Vehicle Standard
  • J211/2_200811
  • Historical
Published 2008-11-18 by SAE International in United States
The purpose of this SAE Recommended Practice is to define criteria of performance for an optical data channel when numerical time and space data are taken from the images to analyze impact test results.
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Sign Convention for Vehicle Crash Testing

Safety Test Instrumentation Stds Comm
  • Ground Vehicle Standard
  • J1733_200711
  • Historical
Published 2007-11-02 by SAE International in United States
In order to compare test results obtained from different crash test facilities, standardized coordinate systems need to be defined for crash test dummies, vehicle structures, and laboratory fixtures. In addition, recorded polarities for various transducer outputs need to be defined relative to positive directions of the appropriate coordinate systems. This SAE Information Report describes the standardized sign convention and recorded output polarities for various transducers used in crash testing.
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