TY - GEN
T1 - Accuracy assessment of novel two-axes rotating and single-axis translating calibration equipment
AU - Bo, Liu
AU - Dong, Ye
AU - Rensheng, Che
PY - 2009
Y1 - 2009
N2 - There is a new method that the rocket nozzle 3D motion is measured by a motion tracking system based on the passive optical markers. However, an important issue is required to resolve-how to assess the accuracy of rocket nozzle motion test. Therefore, calibration equipment is designed and manufactured for generating the truth of nozzle model motion such as translation, angle, velocity, angular velocity, etc. It consists of a base, a lifting platform, a rotary table and a rocket nozzle model with precise geometry size. The nozzle model associated with the markers is installed on the rotary table, which can translate or rotate at the known velocity. The general accuracy of rocket nozzle motion test is evaluated by comparing the truth value with the static and dynamic test data. This paper puts emphasis on accuracy assessment of novel two-axes rotating and single-axis translating calibration equipment. By substituting measured value of the error source into error model, the pointing error reaches less than 0.005deg, rotation center position error reaches 0.08mm, and the rate stability is less than 10-3. The calibration equipment accuracy is much higher than the accuracy of nozzle motion test system, thus the former can be used to assess and calibrate the later.
AB - There is a new method that the rocket nozzle 3D motion is measured by a motion tracking system based on the passive optical markers. However, an important issue is required to resolve-how to assess the accuracy of rocket nozzle motion test. Therefore, calibration equipment is designed and manufactured for generating the truth of nozzle model motion such as translation, angle, velocity, angular velocity, etc. It consists of a base, a lifting platform, a rotary table and a rocket nozzle model with precise geometry size. The nozzle model associated with the markers is installed on the rotary table, which can translate or rotate at the known velocity. The general accuracy of rocket nozzle motion test is evaluated by comparing the truth value with the static and dynamic test data. This paper puts emphasis on accuracy assessment of novel two-axes rotating and single-axis translating calibration equipment. By substituting measured value of the error source into error model, the pointing error reaches less than 0.005deg, rotation center position error reaches 0.08mm, and the rate stability is less than 10-3. The calibration equipment accuracy is much higher than the accuracy of nozzle motion test system, thus the former can be used to assess and calibrate the later.
KW - Accuracy assessment
KW - Calibration equipment
KW - Error analysis
KW - Motion test
KW - Multibody kinematics
KW - Pointing error
KW - Rate stability
KW - Rocket nozzle
UR - https://www.scopus.com/pages/publications/77955696267
U2 - 10.1117/12.838056
DO - 10.1117/12.838056
M3 - 会议稿件
AN - SCOPUS:77955696267
SN - 9780819478979
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 2009 International Conference on Optical Instruments and Technology - Optoelectronic Measurement Technology and Systems
T2 - 2009 International Conference on Optical Instruments and Technology - Optoelectronic Measurement Technology and Systems
Y2 - 19 October 2009 through 22 October 2009
ER -