A Dummy for Simulation Trunk Load Test

Abstract

The invention relates to a dummy for simulation trunk load testing. The dummy is characterized by comprising simulation skeletons and simulation soft tissues; the simulation skeletons include an axial skeleton, two symmetrically-arranged upper limbs and a lower limb; the axial skeleton comprises a skull, a spinal column, ribs, sternums and neck, shoulder and chest connecting pieces; the spinal column comprises a spinal column neck segment, a spinal column chest segment, a spinal column waist segment and a spinal column sacral segment; the ribs include two symmetrically-arranged first ribs, two symmetrically-arranged second ribs, two symmetrically-arranged third ribs, two symmetrically-arranged fourth ribs, two symmetrically-arranged fifth ribs, two symmetrically-arranged sixth ribs and two symmetrically-arranged seventh ribs; each upper limb comprises an upper limb girdle, humerus, radioulna, carpometacarpus, phalanxes, an adduction and abduction shaft, an elbow shaft and a wrist shaft; each upper limb girdle comprises a clavicle, a shoulder blade and a spina scapulae; each phalanx comprises a first phalanx body, a second phalanx body, a third phalanx body, a fourth phalanx body and a fifth phalanx body; the lower limb comprises a sacrum, two symmetrically-arranged hip bones, two closed holes, two thighbones and two installation fixing pieces; the simulation soft tissues comprise a head, a neck, a trunk, upper segments of thighs, the left upper limb and the right upper limb, and the head, the neck, the trunk and the upper segments of the thighs are wholly poured, curved and molded through silicone rubber. The dummy can be widely applied to various static or dynamic load testing processes.

Description

technical field [0001] The invention relates to a simulation test device, in particular to a dummy for the 50th percentile simulation trunk load test. Background technique [0002] In fields such as field survival, outdoor sports, student backpacks, army marches, and labor handling, people usually need to walk with a back load. Long-term human back load changes the position of the body's center of gravity, affecting people's gait and body posture, especially when the load is too large or walking with a long-term load can easily cause physical fatigue and injury. Therefore, in the field of sports biomechanics, scholars at home and abroad have extensively carried out physiological and biomechanical research on gait, posture, fatigue, energy consumption, etc. of human body load walking. At present, most of the studies on human load walking use the method of trial and error with real people, relying on the changes of human subjective fatigue or comfort, physiological and biomec...

AI Technical Summary

Problems solved by technology

U.S. ADAM, HybridIII, and Chinese standard dynamic simulation dummy are not specially designed for back load applications, such as the clavicle, scapula, etc., which are the main bone structures that bear the load of the human body during walking with human load; the design of the pelvis is consistent with that of the human body. It is also completely different, such as no hip bone, obturator, etc.; although it has a simulated skin structure, there is no skin muscle in the neck, and the skin muscle and bone of the whole body are separated, not integrally formed, and its hardness is much different from the actual hardness of the human body.

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