Dynamic modeling of helicopter-slung load system under the flexible sling hypothesis

Yihua Cao; Wensong Nie; Zhaorui Wang; Shaofeng Wan

doi:10.1016/j.ast.2020.105770

Dynamic modeling of helicopter-slung load system under the flexible sling hypothesis

Yihua Cao
, Wensong Nie^*
, Zhaorui Wang
, Shaofeng Wan

^*Corresponding author for this work

School of Aeronautic Science and Engineering

Beihang University

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

28 Scopus citations

Abstract

A physics based and comprehensive model for helicopter with external load is established via Kane's Method in this paper. The weight and flexibility of the cable are taken into account using spring-mass-damper model. The dynamic stability and flight quality of the helicopter-flexible sling-external load system are analyzed and verified through available reference data. Finally, the influences of the flexibility of the sling are discussed through the comparison of the flexible sling model and rigid sling model. The result shows that the rigid sling model is imprecise as the flexible sling will worsen the system's performance in dynamic stability and flight quality.

Original language	English
Article number	105770
Journal	Aerospace Science and Technology
Volume	99
DOIs	https://doi.org/10.1016/j.ast.2020.105770
State	Published - Apr 2020

Keywords

Dynamic modeling
Flexible sling
Helicopter
Slung load

Access to Document

10.1016/j.ast.2020.105770

Cite this

@article{af8c95db11d14f4fa13e494c4560aab9,

title = "Dynamic modeling of helicopter-slung load system under the flexible sling hypothesis",

abstract = "A physics based and comprehensive model for helicopter with external load is established via Kane's Method in this paper. The weight and flexibility of the cable are taken into account using spring-mass-damper model. The dynamic stability and flight quality of the helicopter-flexible sling-external load system are analyzed and verified through available reference data. Finally, the influences of the flexibility of the sling are discussed through the comparison of the flexible sling model and rigid sling model. The result shows that the rigid sling model is imprecise as the flexible sling will worsen the system's performance in dynamic stability and flight quality.",

keywords = "Dynamic modeling, Flexible sling, Helicopter, Slung load",

author = "Yihua Cao and Wensong Nie and Zhaorui Wang and Shaofeng Wan",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Masson SAS",

year = "2020",

month = apr,

doi = "10.1016/j.ast.2020.105770",

language = "英语",

volume = "99",

journal = "Aerospace Science and Technology",

issn = "1270-9638",

publisher = "Elsevier Masson s.r.l.",

}

TY - JOUR

T1 - Dynamic modeling of helicopter-slung load system under the flexible sling hypothesis

AU - Cao, Yihua

AU - Nie, Wensong

AU - Wang, Zhaorui

AU - Wan, Shaofeng

PY - 2020/4

Y1 - 2020/4

N2 - A physics based and comprehensive model for helicopter with external load is established via Kane's Method in this paper. The weight and flexibility of the cable are taken into account using spring-mass-damper model. The dynamic stability and flight quality of the helicopter-flexible sling-external load system are analyzed and verified through available reference data. Finally, the influences of the flexibility of the sling are discussed through the comparison of the flexible sling model and rigid sling model. The result shows that the rigid sling model is imprecise as the flexible sling will worsen the system's performance in dynamic stability and flight quality.

AB - A physics based and comprehensive model for helicopter with external load is established via Kane's Method in this paper. The weight and flexibility of the cable are taken into account using spring-mass-damper model. The dynamic stability and flight quality of the helicopter-flexible sling-external load system are analyzed and verified through available reference data. Finally, the influences of the flexibility of the sling are discussed through the comparison of the flexible sling model and rigid sling model. The result shows that the rigid sling model is imprecise as the flexible sling will worsen the system's performance in dynamic stability and flight quality.

KW - Dynamic modeling

KW - Flexible sling

KW - Helicopter

KW - Slung load

UR - https://www.scopus.com/pages/publications/85079432342

U2 - 10.1016/j.ast.2020.105770

DO - 10.1016/j.ast.2020.105770

M3 - 文章

AN - SCOPUS:85079432342

SN - 1270-9638

VL - 99

JO - Aerospace Science and Technology

JF - Aerospace Science and Technology

M1 - 105770

ER -

Dynamic modeling of helicopter-slung load system under the flexible sling hypothesis

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this