Development of a suspended-load rotation-control device for cranes with gyroscopic damper and control by wind force (concept, modeling and experiments)

Currently, cranes are used as transportation equipment in various industries such as construction, distribution and manufacturing. In the construction field, materials and products suspended from a crane hook are called suspended loads. Basically, the crane hook is a free rotation mechanism and lack...

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Autores principales:	Masaomi WADA, Yoshihito MORI, Yasutaka TAGAWA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	gyroscopic moment modeling mechanical gyroscope gyroscopic damper wind force Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/33a4a32dab8b4893b0eade1762f7a8a5
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spelling	oai:doaj.org-article:33a4a32dab8b4893b0eade1762f7a8a52021-11-29T06:01:26ZDevelopment of a suspended-load rotation-control device for cranes with gyroscopic damper and control by wind force (concept, modeling and experiments)2187-974510.1299/mej.20-00268https://doaj.org/article/33a4a32dab8b4893b0eade1762f7a8a52020-09-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/5/7_20-00268/_pdf/-char/enhttps://doaj.org/toc/2187-9745Currently, cranes are used as transportation equipment in various industries such as construction, distribution and manufacturing. In the construction field, materials and products suspended from a crane hook are called suspended loads. Basically, the crane hook is a free rotation mechanism and lacks a rotating power function, so the suspended load under the crane hook rotates when exposed to strong wind and it remains extremely dangerous when working at high place. Accordingly, in this study, we have developed the suspended -load rotation-control device. Then, we focused on the characteristics of passive control that generate a large torque with respect to a short-term disturbance around the vertical axis of a uniaxial mechanical gyroscope. From this characteristics, a mechanical gyroscope is installed in a part of the device, and the suspended load is rotated by a motor-driven device hook. Then, the reaction torque generated when the suspended load is rotating is surpressed, and the suspended load is stopped at an arbitrary position. Actually, this device is applied to carry in materials and products at various sites. However, since several problems were found in the operation of this device, this study examined how to improve them. To shorten the offset time of the flywheel tilt angle, we examined two items. The first aspect of improving this device involves the study of a gyroscopic damper in which springs are added to the gimbal side of the mechanical gyroscope. The second item of the improvement method of this device involves controlling the posture using control by wind force. This paper introduces ways that improve the mechanical gyroscope offset function of this device. Next, to confirm the effectiveness of the gyroscopic damper and control by wind force are verified and the contents of the physical model created based on the verification test are also described.Masaomi WADAYoshihito MORIYasutaka TAGAWAThe Japan Society of Mechanical Engineersarticlegyroscopic momentmodelingmechanical gyroscopegyroscopic damperwind forceMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 5, Pp 20-00268-20-00268 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	gyroscopic moment modeling mechanical gyroscope gyroscopic damper wind force Mechanical engineering and machinery TJ1-1570
spellingShingle	gyroscopic moment modeling mechanical gyroscope gyroscopic damper wind force Mechanical engineering and machinery TJ1-1570 Masaomi WADA Yoshihito MORI Yasutaka TAGAWA Development of a suspended-load rotation-control device for cranes with gyroscopic damper and control by wind force (concept, modeling and experiments)
description	Currently, cranes are used as transportation equipment in various industries such as construction, distribution and manufacturing. In the construction field, materials and products suspended from a crane hook are called suspended loads. Basically, the crane hook is a free rotation mechanism and lacks a rotating power function, so the suspended load under the crane hook rotates when exposed to strong wind and it remains extremely dangerous when working at high place. Accordingly, in this study, we have developed the suspended -load rotation-control device. Then, we focused on the characteristics of passive control that generate a large torque with respect to a short-term disturbance around the vertical axis of a uniaxial mechanical gyroscope. From this characteristics, a mechanical gyroscope is installed in a part of the device, and the suspended load is rotated by a motor-driven device hook. Then, the reaction torque generated when the suspended load is rotating is surpressed, and the suspended load is stopped at an arbitrary position. Actually, this device is applied to carry in materials and products at various sites. However, since several problems were found in the operation of this device, this study examined how to improve them. To shorten the offset time of the flywheel tilt angle, we examined two items. The first aspect of improving this device involves the study of a gyroscopic damper in which springs are added to the gimbal side of the mechanical gyroscope. The second item of the improvement method of this device involves controlling the posture using control by wind force. This paper introduces ways that improve the mechanical gyroscope offset function of this device. Next, to confirm the effectiveness of the gyroscopic damper and control by wind force are verified and the contents of the physical model created based on the verification test are also described.
format	article
author	Masaomi WADA Yoshihito MORI Yasutaka TAGAWA
author_facet	Masaomi WADA Yoshihito MORI Yasutaka TAGAWA
author_sort	Masaomi WADA
title	Development of a suspended-load rotation-control device for cranes with gyroscopic damper and control by wind force (concept, modeling and experiments)
title_short	Development of a suspended-load rotation-control device for cranes with gyroscopic damper and control by wind force (concept, modeling and experiments)
title_full	Development of a suspended-load rotation-control device for cranes with gyroscopic damper and control by wind force (concept, modeling and experiments)
title_fullStr	Development of a suspended-load rotation-control device for cranes with gyroscopic damper and control by wind force (concept, modeling and experiments)
title_full_unstemmed	Development of a suspended-load rotation-control device for cranes with gyroscopic damper and control by wind force (concept, modeling and experiments)
title_sort	development of a suspended-load rotation-control device for cranes with gyroscopic damper and control by wind force (concept, modeling and experiments)
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/33a4a32dab8b4893b0eade1762f7a8a5
work_keys_str_mv	AT masaomiwada developmentofasuspendedloadrotationcontroldeviceforcraneswithgyroscopicdamperandcontrolbywindforceconceptmodelingandexperiments AT yoshihitomori developmentofasuspendedloadrotationcontroldeviceforcraneswithgyroscopicdamperandcontrolbywindforceconceptmodelingandexperiments AT yasutakatagawa developmentofasuspendedloadrotationcontroldeviceforcraneswithgyroscopicdamperandcontrolbywindforceconceptmodelingandexperiments
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Development of a suspended-load rotation-control device for cranes with gyroscopic damper and control by wind force (concept, modeling and experiments)

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