Flight performance analysis of hybrid airship considering added mass effects

Lanchuan Zhang; Mingyun Lv; Cong Sun; Junhui Meng

doi:10.1115/1.4040220

Flight performance analysis of hybrid airship considering added mass effects

Lanchuan Zhang, Mingyun Lv, Cong Sun, Junhui Meng^*

^*Corresponding author for this work

Beihang University

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

In this paper, an analysis is applied to a hybrid airship considering the added mass. First, based on the dynamic mesh technology, a computational fluid dynamics (CFD) method is employed to obtain the added mass coefficient matrix. Through a validation process using the 6:1 prolate spheroid, the 6 × 6 added mass matrix of hybrid airship is obtained. After a dynamic modeling, the equations of motion with added mass are developed. Through the linearization based on small perturbation, the linearized longitude model is used to simulate the dynamic response of a trim condition. The take-off and landing performance has been analyzed and affected by the added mass. The result shows an obvious vertical destabilizing trend on the hybrid airship dynamics due to the added mass and the inertial effect has little influence on the vehicle during the take-off and landing.

Original language	English
Article number	111001
Journal	Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME
Volume	140
Issue number	11
DOIs	https://doi.org/10.1115/1.4040220
Publication status	Published - 1 Nov 2018
Externally published	Yes

Keywords

CFD
added mass
dynamic analysis
hybrid airship
take-off and landing

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10.1115/1.4040220

Cite this

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title = "Flight performance analysis of hybrid airship considering added mass effects",

abstract = "In this paper, an analysis is applied to a hybrid airship considering the added mass. First, based on the dynamic mesh technology, a computational fluid dynamics (CFD) method is employed to obtain the added mass coefficient matrix. Through a validation process using the 6:1 prolate spheroid, the 6 × 6 added mass matrix of hybrid airship is obtained. After a dynamic modeling, the equations of motion with added mass are developed. Through the linearization based on small perturbation, the linearized longitude model is used to simulate the dynamic response of a trim condition. The take-off and landing performance has been analyzed and affected by the added mass. The result shows an obvious vertical destabilizing trend on the hybrid airship dynamics due to the added mass and the inertial effect has little influence on the vehicle during the take-off and landing.",

keywords = "CFD, added mass, dynamic analysis, hybrid airship, take-off and landing",

author = "Lanchuan Zhang and Mingyun Lv and Cong Sun and Junhui Meng",

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TY - JOUR

T1 - Flight performance analysis of hybrid airship considering added mass effects

AU - Zhang, Lanchuan

AU - Lv, Mingyun

AU - Sun, Cong

AU - Meng, Junhui

PY - 2018/11/1

Y1 - 2018/11/1

N2 - In this paper, an analysis is applied to a hybrid airship considering the added mass. First, based on the dynamic mesh technology, a computational fluid dynamics (CFD) method is employed to obtain the added mass coefficient matrix. Through a validation process using the 6:1 prolate spheroid, the 6 × 6 added mass matrix of hybrid airship is obtained. After a dynamic modeling, the equations of motion with added mass are developed. Through the linearization based on small perturbation, the linearized longitude model is used to simulate the dynamic response of a trim condition. The take-off and landing performance has been analyzed and affected by the added mass. The result shows an obvious vertical destabilizing trend on the hybrid airship dynamics due to the added mass and the inertial effect has little influence on the vehicle during the take-off and landing.

AB - In this paper, an analysis is applied to a hybrid airship considering the added mass. First, based on the dynamic mesh technology, a computational fluid dynamics (CFD) method is employed to obtain the added mass coefficient matrix. Through a validation process using the 6:1 prolate spheroid, the 6 × 6 added mass matrix of hybrid airship is obtained. After a dynamic modeling, the equations of motion with added mass are developed. Through the linearization based on small perturbation, the linearized longitude model is used to simulate the dynamic response of a trim condition. The take-off and landing performance has been analyzed and affected by the added mass. The result shows an obvious vertical destabilizing trend on the hybrid airship dynamics due to the added mass and the inertial effect has little influence on the vehicle during the take-off and landing.

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KW - added mass

KW - dynamic analysis

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KW - take-off and landing

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ER -

Flight performance analysis of hybrid airship considering added mass effects

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