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- W4285537470 abstract "To reduce collision shock and injury risk to an infant in an in-car crib (or in a child safety bed) during a car crash, the force acting on the crib must remain constant below a certain allowable value. Hence, we have been proposed a semi-active in-car crib with joint application of regular and inverted pendulum mechanisms. The crib is supported by arms, like a pendulum; and the pendulum system is supported by arms, like an inverted pendulum. The friction torques of the joints are semi-active controlled using a brake mechanism. However, a collision impact is directed toward the infant’s side in the crib, and the resulting motion of the body is relatively complex. Therefore, the in-car crib has been designed to not only reduce the impulsive force, but also to transfer the force to the infant’s back using a spin control system, i.e., the impulse force acts perpendicularly on the crib. In this study, a control algorithm, that combines the semi-active acceleration control and the active spin control and gives priority to acceleration control, is proposed, and, the effectiveness is measured by numerical simulations. Then, it was confirmed that the horizontal acceleration of the crib can be relaxed by 20% by moving the crib horizontally, and that the acceleration force parallel to the crib can be suppressed by rotating the crib." @default.
- W4285537470 created "2022-07-16" @default.
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- W4285537470 date "2021-01-01" @default.
- W4285537470 modified "2023-09-27" @default.
- W4285537470 title "Semi-active Acceleration Control and Active Spin Control for In-car Crib with Joint Application of Regular and Inverted Pendulum Mechanisms" @default.
- W4285537470 doi "https://doi.org/10.1299/jsmemovic.2021.17.b16" @default.
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