Evaluation of the effect of the point angle and angle of incidence of a metal anchor on its docking state in a satellite structure for space debris mitigation

The effects of the point angle of a metal anchor and the angle between the target and the plane perpendicular to the direction of travel of the anchor (target angle) on the docking state of the anchor in a satellite structure were experimentally and numerically evaluated. Projectile experiments were...

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Autores principales:	Ba Thanh Long NGUYEN, Hiroaki TANAKA, Hidehiro HATA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2018
Materias:	space debris mitigation satellite structure anchor projection point angle target angle Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/fab1d9a971364a0f97e250ea4f4bec95
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spelling	oai:doaj.org-article:fab1d9a971364a0f97e250ea4f4bec952021-11-26T07:14:15ZEvaluation of the effect of the point angle and angle of incidence of a metal anchor on its docking state in a satellite structure for space debris mitigation2187-974510.1299/mej.17-00087https://doaj.org/article/fab1d9a971364a0f97e250ea4f4bec952018-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/5/1/5_17-00087/_pdf/-char/enhttps://doaj.org/toc/2187-9745The effects of the point angle of a metal anchor and the angle between the target and the plane perpendicular to the direction of travel of the anchor (target angle) on the docking state of the anchor in a satellite structure were experimentally and numerically evaluated. Projectile experiments were conducted using test plates at target angles of 0°, 30°, 45°, and 60° and two metal anchors with conical tips with different point angles (60° and 90°) to investigate the effects of the anchor point angle and the target angle and determine the minimum penetration velocity in each case. The experimental results indicate that the minimum penetration velocity increases as the target angle increases. Because of the limitations of the experimental equipment, performing experiments at certain target angles is difficult; thus, an accurate numerical simulation model was developed based on the experimental results to enable a more detailed investigation. The simulation results obtained using a bilinear isotropic hardening model and three Johnson-Cook models with different sets of parameters were compared with the experimental results to evaluate their applicability. Besides, the applicability of the numerical simulation model are also evaluated by experiments with different metal anchor shape and target plate thickness. It was confirmed that Johnson-Cook models can be used to effectively simulate the docking state and minimum penetration velocity of a metal anchor projection at different target angles. The effects of the point and target angles on the docking state of the metal anchors were investigated more quantitatively through numerical analysis. The numerical analysis results indicate that the minimum penetration velocities of the metal anchor with the smaller point angle (60°) are smaller than those of the metal anchor with the larger point angle (90°) when the angle of attack, which is the angle complementary angle to the target angle, is larger than half of the anchor point angle. When the angle of attack is smaller than this critical value, the metal anchor passes through the target at the minimum penetration velocity, and the conditions are not suitable for docking. The experimental and numerical simulation results indicate that a metal anchor with a smaller point angle can more easily penetrate a target plate and the angle of attack should be larger than half of the anchor point angle to achieve an adequate docking state.Ba Thanh Long NGUYENHiroaki TANAKAHidehiro HATAThe Japan Society of Mechanical Engineersarticlespace debris mitigationsatellite structureanchor projectionpoint angletarget angleMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 5, Iss 1, Pp 17-00087-17-00087 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	space debris mitigation satellite structure anchor projection point angle target angle Mechanical engineering and machinery TJ1-1570
spellingShingle	space debris mitigation satellite structure anchor projection point angle target angle Mechanical engineering and machinery TJ1-1570 Ba Thanh Long NGUYEN Hiroaki TANAKA Hidehiro HATA Evaluation of the effect of the point angle and angle of incidence of a metal anchor on its docking state in a satellite structure for space debris mitigation
description	The effects of the point angle of a metal anchor and the angle between the target and the plane perpendicular to the direction of travel of the anchor (target angle) on the docking state of the anchor in a satellite structure were experimentally and numerically evaluated. Projectile experiments were conducted using test plates at target angles of 0°, 30°, 45°, and 60° and two metal anchors with conical tips with different point angles (60° and 90°) to investigate the effects of the anchor point angle and the target angle and determine the minimum penetration velocity in each case. The experimental results indicate that the minimum penetration velocity increases as the target angle increases. Because of the limitations of the experimental equipment, performing experiments at certain target angles is difficult; thus, an accurate numerical simulation model was developed based on the experimental results to enable a more detailed investigation. The simulation results obtained using a bilinear isotropic hardening model and three Johnson-Cook models with different sets of parameters were compared with the experimental results to evaluate their applicability. Besides, the applicability of the numerical simulation model are also evaluated by experiments with different metal anchor shape and target plate thickness. It was confirmed that Johnson-Cook models can be used to effectively simulate the docking state and minimum penetration velocity of a metal anchor projection at different target angles. The effects of the point and target angles on the docking state of the metal anchors were investigated more quantitatively through numerical analysis. The numerical analysis results indicate that the minimum penetration velocities of the metal anchor with the smaller point angle (60°) are smaller than those of the metal anchor with the larger point angle (90°) when the angle of attack, which is the angle complementary angle to the target angle, is larger than half of the anchor point angle. When the angle of attack is smaller than this critical value, the metal anchor passes through the target at the minimum penetration velocity, and the conditions are not suitable for docking. The experimental and numerical simulation results indicate that a metal anchor with a smaller point angle can more easily penetrate a target plate and the angle of attack should be larger than half of the anchor point angle to achieve an adequate docking state.
format	article
author	Ba Thanh Long NGUYEN Hiroaki TANAKA Hidehiro HATA
author_facet	Ba Thanh Long NGUYEN Hiroaki TANAKA Hidehiro HATA
author_sort	Ba Thanh Long NGUYEN
title	Evaluation of the effect of the point angle and angle of incidence of a metal anchor on its docking state in a satellite structure for space debris mitigation
title_short	Evaluation of the effect of the point angle and angle of incidence of a metal anchor on its docking state in a satellite structure for space debris mitigation
title_full	Evaluation of the effect of the point angle and angle of incidence of a metal anchor on its docking state in a satellite structure for space debris mitigation
title_fullStr	Evaluation of the effect of the point angle and angle of incidence of a metal anchor on its docking state in a satellite structure for space debris mitigation
title_full_unstemmed	Evaluation of the effect of the point angle and angle of incidence of a metal anchor on its docking state in a satellite structure for space debris mitigation
title_sort	evaluation of the effect of the point angle and angle of incidence of a metal anchor on its docking state in a satellite structure for space debris mitigation
publisher	The Japan Society of Mechanical Engineers
publishDate	2018
url	https://doaj.org/article/fab1d9a971364a0f97e250ea4f4bec95
work_keys_str_mv	AT bathanhlongnguyen evaluationoftheeffectofthepointangleandangleofincidenceofametalanchoronitsdockingstateinasatellitestructureforspacedebrismitigation AT hiroakitanaka evaluationoftheeffectofthepointangleandangleofincidenceofametalanchoronitsdockingstateinasatellitestructureforspacedebrismitigation AT hidehirohata evaluationoftheeffectofthepointangleandangleofincidenceofametalanchoronitsdockingstateinasatellitestructureforspacedebrismitigation
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Evaluation of the effect of the point angle and angle of incidence of a metal anchor on its docking state in a satellite structure for space debris mitigation

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