Dummy hip joint calibration test device

Abstract

The invention provides a dummy hip joint calibration test device, which includes a bracket, a swing arm mechanism and a test piece mounting suspension are arranged on the bracket, a fine-tuning rotation mechanism is arranged on the swing arm mechanism, and the fine-tuning rotation mechanism and the swing arm mechanism Hinged, the fine-tuning rotating mechanism is equipped with a large leg connecting piece, which is used to connect with the dummy’s thigh, and the test piece mounting suspension is used to fix the dummy’s hip joint, and one end of the test piece mounting suspension is hinged to the bracket through the rotating shaft. The other end of the component mounting suspension is connected with a torque sensor through a rotating shaft, and the torque sensor is connected with the bracket. The dummy hip joint calibration test device can directly measure the torque of the dummy hip joint pelvis, and at the same time measure the angle of the pelvis through the inclination sensor on the sliding sleeve, so that after measuring the pelvic torque and pelvic angle, the dummy can be The hip joint is calibrated, so the dummy hip joint calibration test device can calibrate the dummy hip joint, and can make the calibration result more accurate.

Description

technical field [0001] The invention relates to the field of transportation safety test, in particular to a test device for calibrating a dummy hip joint in a passive safety test. Background technique [0002] Collision test belongs to the research scope of passive safety, and its purpose is mainly to test the ability of manned transportation vehicles (such as aircraft, ships, automobiles) to protect occupants in the event of accidents (such as aircraft collision, ship hitting a rock, car collision, etc.). . At present, foreign research institutions have installed acquisition systems on manned transportation vehicles to collect actual data when accidents occur, and use artificial simulation test devices to reproduce the actual data through collision tests in the laboratory for inspection and verification. Evaluate the ability of manned transportation to protect occupants. [0003] Due to the danger of crash tests, it is impossible to use real people to conduct crash tests....

AI Technical Summary

Problems solved by technology

It can be seen from this that: ① The force data of the hip joint measured in the system does not meet the calibration requirements. According to the calibration specification, the measurement data is the torque on the pelvis rather than force data, and the required data collection is the bending force The pelvic angle is measured when the torque is 203Nm, ​​and the system does not contain a sensor that can measure the pelvic angle. ②According to the calibration specification, it is necessary to calibrate the bending moment when the pelvic angle is 30°, because the system does not contain a sensor that can measure the pelvic angle. , so it is impossible to calibrate this

In summary, it can be considered that the device does not have the ability to calibrate the dummy hip joint

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