An improved negative zero vibration anti-swing control strategy for grab ship unloader based on elastic wire rope model

A dynamic model of swing system of bridge-type ship unloader is established by considering the elastic factor of wire rope in this paper. Based on this model, an improved Negative Zero Vibration (NZV) shaper with optimal control parameters of variable rope length system is proposed to restrain the s...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Cao Xiaohua, Meng Chao, Zhou Yong, Zhu Meng
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	grab ship unloader elastic wire rope model negative zero vibration anti-swing control Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/ca41d6583c674920889c0a7e105c82a4
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ca41d6583c674920889c0a7e105c82a4
record_format	dspace
spelling	oai:doaj.org-article:ca41d6583c674920889c0a7e105c82a42021-11-12T11:45:10ZAn improved negative zero vibration anti-swing control strategy for grab ship unloader based on elastic wire rope model2257-77772257-775010.1051/meca/2021045https://doaj.org/article/ca41d6583c674920889c0a7e105c82a42021-01-01T00:00:00Zhttps://www.mechanics-industry.org/articles/meca/full_html/2021/01/mi200246/mi200246.htmlhttps://doaj.org/toc/2257-7777https://doaj.org/toc/2257-7750A dynamic model of swing system of bridge-type ship unloader is established by considering the elastic factor of wire rope in this paper. Based on this model, an improved Negative Zero Vibration (NZV) shaper with optimal control parameters of variable rope length system is proposed to restrain the swing of grab. Then the control effects, influence of elasticity factor and parameter sensitivities are analyzed based on numerical simulation. The results show that the proposed control strategy can reduce the working cycle time of the grab ship unloader about 11% when considering the elastic factor of the wire rope, and the grab's maximum residual swing angle decreases by 67% when discharging at full load, and decreases by 79% when taking the cargos at empty load. This implies that the improved NZV control method provides better swing angle control performance and shorter operation time compared with the Zero Vibration (ZV) and Zero Vibration and Derivative (ZVD) methods. Moreover, elastic rope model can improve the swing angle control effect of grab based on the proposed control strategy compared with rigid rope model. The parameter sensitivity analysis displays that the grab's maximum residual swing angle by using the improved NZV method is sensitive to the change of the grab's center of gravity, and this angle is more sensitive to the wire rope diameter deviation compared with the elastic modulus deviation.Cao XiaohuaMeng ChaoZhou YongZhu MengEDP Sciencesarticlegrab ship unloaderelastic wire rope modelnegative zero vibrationanti-swing controlMaterials of engineering and construction. Mechanics of materialsTA401-492ENMechanics & Industry, Vol 22, p 45 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	grab ship unloader elastic wire rope model negative zero vibration anti-swing control Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	grab ship unloader elastic wire rope model negative zero vibration anti-swing control Materials of engineering and construction. Mechanics of materials TA401-492 Cao Xiaohua Meng Chao Zhou Yong Zhu Meng An improved negative zero vibration anti-swing control strategy for grab ship unloader based on elastic wire rope model
description	A dynamic model of swing system of bridge-type ship unloader is established by considering the elastic factor of wire rope in this paper. Based on this model, an improved Negative Zero Vibration (NZV) shaper with optimal control parameters of variable rope length system is proposed to restrain the swing of grab. Then the control effects, influence of elasticity factor and parameter sensitivities are analyzed based on numerical simulation. The results show that the proposed control strategy can reduce the working cycle time of the grab ship unloader about 11% when considering the elastic factor of the wire rope, and the grab's maximum residual swing angle decreases by 67% when discharging at full load, and decreases by 79% when taking the cargos at empty load. This implies that the improved NZV control method provides better swing angle control performance and shorter operation time compared with the Zero Vibration (ZV) and Zero Vibration and Derivative (ZVD) methods. Moreover, elastic rope model can improve the swing angle control effect of grab based on the proposed control strategy compared with rigid rope model. The parameter sensitivity analysis displays that the grab's maximum residual swing angle by using the improved NZV method is sensitive to the change of the grab's center of gravity, and this angle is more sensitive to the wire rope diameter deviation compared with the elastic modulus deviation.
format	article
author	Cao Xiaohua Meng Chao Zhou Yong Zhu Meng
author_facet	Cao Xiaohua Meng Chao Zhou Yong Zhu Meng
author_sort	Cao Xiaohua
title	An improved negative zero vibration anti-swing control strategy for grab ship unloader based on elastic wire rope model
title_short	An improved negative zero vibration anti-swing control strategy for grab ship unloader based on elastic wire rope model
title_full	An improved negative zero vibration anti-swing control strategy for grab ship unloader based on elastic wire rope model
title_fullStr	An improved negative zero vibration anti-swing control strategy for grab ship unloader based on elastic wire rope model
title_full_unstemmed	An improved negative zero vibration anti-swing control strategy for grab ship unloader based on elastic wire rope model
title_sort	improved negative zero vibration anti-swing control strategy for grab ship unloader based on elastic wire rope model
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/ca41d6583c674920889c0a7e105c82a4
work_keys_str_mv	AT caoxiaohua animprovednegativezerovibrationantiswingcontrolstrategyforgrabshipunloaderbasedonelasticwireropemodel AT mengchao animprovednegativezerovibrationantiswingcontrolstrategyforgrabshipunloaderbasedonelasticwireropemodel AT zhouyong animprovednegativezerovibrationantiswingcontrolstrategyforgrabshipunloaderbasedonelasticwireropemodel AT zhumeng animprovednegativezerovibrationantiswingcontrolstrategyforgrabshipunloaderbasedonelasticwireropemodel AT caoxiaohua improvednegativezerovibrationantiswingcontrolstrategyforgrabshipunloaderbasedonelasticwireropemodel AT mengchao improvednegativezerovibrationantiswingcontrolstrategyforgrabshipunloaderbasedonelasticwireropemodel AT zhouyong improvednegativezerovibrationantiswingcontrolstrategyforgrabshipunloaderbasedonelasticwireropemodel AT zhumeng improvednegativezerovibrationantiswingcontrolstrategyforgrabshipunloaderbasedonelasticwireropemodel
_version_	1718430580653162496

An improved negative zero vibration anti-swing control strategy for grab ship unloader based on elastic wire rope model

Ejemplares similares