Human-induced load testing system based on force measurement plate

Abstract

The invention relates to a human-induced load testing system based on a force measurement plate and belongs to the field of biomechanics. The human-induced load testing system comprises a detection system, a pedestrian path and a data processing system. The detection system is the force measurement plate. The pedestrian path comprises a leading-in channel, a testing platform, a leading-out channel and counter weights. The leading-in channel and the leading-out channel are located on two sides of the testing platform, a leading-in plate, a test plate, a bearing plate and a leading-out plate are required to be located on the same horizontal plane. The counter weights are symmetrically arranged on two sides of the bearing plate. The force measurement plate is put under a base plate central point. The data processing system acquires data through the detection system. The human-induced load testing system closely re-shows and tests various advancing modes (walking, stepping, running, jumping and the like) of people on a horizontal plane in a natural state mode.

Description

technical field [0001] The invention relates to an artificial load testing system based on a force measuring plate, which belongs to the field of biomechanics. Background technique [0002] The rapid development of social economy has led to an increasing number of domestic public manned structures (such as footbridges, stadium stands, dance halls, theaters, etc.), and new structural materials, structural systems, and construction methods have made public manned structures change. The span is wider and softer. These structures are more susceptible to severe vibrations caused by artificial loads under normal use. The so-called human-induced load refers to the dynamic load on the ground generated by people under different behaviors, such as walking, stepping, running, jumping, etc. The human-induced load can be decomposed into components in three directions, namely, the vertical force along the direction of gravity (referred to as vertical load), the horizontal force perpendi...

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Problems solved by technology

[0004] Summarizing the human-induced load test devices at home and abroad, they generally have the following problems: the test device based on the force plate will generate additional force due to the height difference between the plate and the ground when the pedestrian lifts his foot on the side force plate, and the test device The components of the three directions of the human-induced load will have certain deviations, and most of the subjects can only take a single step; while the test device based on the walking machine is uniformly transmitted by the conveyor belt, the subjects will evenly balance the left and right feet. The difference between two consecutive single steps, most people have a large step length or a small step frequency at the pace set by the treadmill, and the visual experience and sense of balance on the treadmill are also completely different walking or running in a natural state

Therefore, no matter whether it is a test device based on a force plate or a test device based on a walking machine, they cannot measure well the multi-step that is close to the natural forward state under multiple working conditions such as walking, stepping, running, and jumping. load information

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