SIMPLE PENDULUM APPARATUS AND RAPID OSCILLATION CONTROL METHOD THEREOF

WIPO Patent Application WO/2020/252875

A1

A simple pendulum apparatus and a rapid oscillation control method thereof. A simple pendulum structure of the simple pendulum apparatus is connected to a mounted bearing (1) by means of a connection apparatus (3). A rotation angle of the simple pendulum structure is converted into an analog signal by means of a photoelectric encoder (13), and a computer (17) acquires and stores the analog signal. A moving slider (9) is connected to a stepping motor (4) by means of a synchronous belt (6) and a synchronous pulley (18), and the stepping motor (4) controls movement of the moving slider on the simple pendulum structure. The rapid oscillation control method comprises the following steps: acquiring and determining an oscillation angle of the simple pendulum in real time; and when the simple pendulum reaches a maximum angle, controlling the moving slider (9) to move upwards, and when the simple pendulum reaches a vertical position, controlling the moving slider (9) to move downwards. A method for controlling movement of the moving slider (9) is designed, and a movement distance ΔL for each movement of the moving slider (9) is designed. The simple pendulum apparatus and the control method efficiently and stably control oscillation, and are applicable to the field of rapid suppression of oscillation of a simple pendulum structure.

LI CHAOFENG (CN)
ZHANG ZIJIAN (CN)
LI PEIYONG (CN)
QIAO RUIHUAN (CN)

PCT/CN2019/100800

December 24, 2020

August 15, 2019

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UNIV NORTHEASTERN (CN)

B66C13/06; G05B15/02

CN208200166U	2018-12-07
CN106477455A	2017-03-08
CN103663143B	2015-08-26
CN206886548U	2018-01-16
EP0583816A1	1994-02-23
JP2016199359A	2016-12-01

BEIJING EASY JOY SOON IP AGENT LTD (CN)

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