Naval mines present a severe threat to maritime safety. Helicopter-based mine clearing, compared to traditional ship-based methods, offers faster deployment, higher efficiency, and lower risk. However, there is still a lack of publicly available modeling theories and analytical methods applicable to such systems. This paper establishes a cross-medium large-flexible towing cable model based on the Absolute Node Coordinate Formulation (ANCF). Additionally, a rigid-body dynamics model for the helicopter and towing body, which facilitates easy coupling integration, is developed. The cross-medium rigid-flexible coupling model for the helicopter mine-clearing system is constructed and validated. A partitioned trim method for the coupled system is proposed, and the effects of key design and flight parameters on trim characteristics are analyzed. The results show that: as flight speed increases, helicopter nose-down attitude intensi-fies; placing the towing point behind and above the center of gravity improves the attitude; during turns, the towing cable tension suppresses helicopter roll motion, requiring additional lateral control to provide centripetal force for turn-ing; decreasing flight altitude and increasing towing cable length does not significantly increase the towing body depth, necessitating the installation of sinking components on the towing body.
WANG Luo-Feng
,
CHEN Ren-Liang
,
FENG Rui
. Cross-Medium Rigid-Flexible Coupled Modeling and Trim Analysis of the Helicopter Mine-Clearing Systems[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 0
: 1
-0
.
DOI: 10.7527/S1000-6893.2025.31900
[1] HANDLER E H. The helicopter-towed hydrofoil sea pallet[J]. Journal of the American Helicopter Society, Vertical Flight Society, 1961, 6(3): 22–26.
[2] WARD R S, LARRABEE R M. A towed planing hull sled for fast surface delivery of pollution control equipment[J]. Naval Engineers Journal, 1977, 89(2): 129–137.
[3] XIN H, HE C. A high fidelity simulation model for comprehensive analysis of rotorcraft towing operations[C]//American Helicopter Society 59th Annual Forum. Phoenix, Arizona: 2003.
[4] SRIDHARAN A, CELI R. Flight dynamics and control of a rotorcraft towing a submerged load[C]//the AHS 69th Annual Forum. Phoenix, Arizona: 2013.
[5] CELI R. HeliUM 2 Flight dynamic simulation model：development, technical concepts, and ap-plications[C]//the AHS 71st Annual Forum. Vir-ginia Beach, VA: 2015.
[6] SRIDHARAN A, CELI R. On the role of cable curvature in rotorcraft-based tow operations for submerged loads[C]//Vertical Flight Society 70th Annual Forum & Technology Display. Montréal, Québec: The Vertical Flight Society, 2014: 1–23.
[7] KAMMAN J W, HUSTON R L. Multibody dy-namics modeling of variable length cable sys-tems[J]. Multibody System Dynamics, 2001, 5(3): 211–221.
[8] LIU Q, BAO J, SHAO Y, et al. Dynamic modeling and underwater configuration analysis of fiber op-tic cable for UUV-launched UAV[J]. Ocean Engi-neering, 2024, 303.
[9] BUCKHAM B, DRISCOLL F R, NAHON M. De-velopment of a finite element cable model for use in low-tension dynamics simulation[J]. Journal of Applied Mechanics, Transactions ASME, 2004, 71(4): 476–485.
[10] SUN F J, ZHU Z H, LAROSA M. Dynamic mod-eling of cable towed body using nodal position fi-nite element method[J]. Ocean Engineering, 2011, 38(4): 529–540.
[11] ZHAO Y, LI G, LIAN L. Numerical model of towed cable body system validation from sea trial experimental data[J]. Ocean Engineering, 2021, 226.
[12] SHABANA A A. Dynamics of multibody sys-tems[M]. New York: Cambridge University Press, 2005.
[13] PARK J, KIM N. Dynamics modeling of a semi-submersible autonomous underwater vehicle with a towfish towed by a cable[J]. International Jour-nal of Naval Architecture and Ocean Engineering, 2015, 7(2): 409–425.
[14] ZONG L, ZHU X, WEI Z, et al. Shape correction of deep-towed seismic arrays by using floaters and a cone-shaped drogue[J]. Ocean Engineering, 2024, 310.
[15] YANG S, REN H, ZHU X. Dynamic modeling of cable deployment/retrieval based on ALE-ANCF and adaptive step-size integrator[J]. Ocean Engi-neering, 2024, 309.
[16] WANG L, CHEN R. Nonlinear helicopter rigid-elastic coupled modeling with its applications on aeroservoelasticity analysis[J]. AIAA Journal, 2022, 60(1): 102–112.
[17] 王洛烽, 陈仁良. 吊挂飞行对重型直升机空中共振稳定性的影响机理分析[J]. 航空学报, 2023, 44(16): 1–10.
WANG L, CHEN R. Effects of slung load on heavy lift helicopter air resonance stability [J], Acta Aeronautica et Astronautica Sinica, 2023, 44(16): 1–10. (in Chinese)
[18] WANG L, CHEN R. Handling qualities assess-ment and discussion for helicopter with slung load systems utilizing various sling configura-tions[J]. Aerospace, 2024, 11(9): 711.
[19] CHOC Y-I, CASARELL M J. Hydrodynamic re-sistance of towed cables[J]. Journal of Hydro-nautics, 1971, 5(4): 126–131.
[20] KNUTSON R K, EISENBERG. At-sea hydrody-namic evaluation of bare double-armored tow ca-bles[R]. ADA239874, Bethesda, Maryland: 1991.
[21] SRIDHARAN A. Simulation modeling of flight dynamics, control and trajectory optimization of rotorcraft towing submerged loads[D]. University of Maryland, College Park, 2014.
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