Preliminary calculations for a flexible cable in steady, non-uniform flow

Maixner, Michael; McDaniel, David R.

doi:10.1016/j.ast.2011.03.009

Cited by 3 publications

(2 citation statements)

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“…To solve this problem, Maixner and McDaniel 5 introduce an lmin to mark the end of the reeling-in operation for each segment in case the denominator in equation (8) becomes too small (shown in Figure 3). Another proposed method is to set the denominator l as a constant, which has been proven to be acceptable in some cases but is still not aligned with the physical truth.…”

Section: Methodology For Modelling Retrievalmentioning

confidence: 99%

“…In early studies on aerial towed systems, the steady towing state of the cable was studied. [2][3][4][5][6] Then, to simulate low-altitude sea-skimming anti-ship missiles, more studies on positive control systems 7 for towed targets were carried out. However, the retrieval of towed targets has rarely been researched, although some studies have focused on modelling the release process.…”

Section: Introductionmentioning

confidence: 99%

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Simulation of the dynamic retrieval process of a towed target system under towing airplane’s wake and atmospheric turbulence

Wei

Chen

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part G:

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This paper studies the dynamic retrieval process of a towed target system under perturbation by simulating the reel-in operation under the towing airplane’s wake and atmospheric turbulence. To settle the computational problem of cable tension, the constant-length method is proposed to transform this variable-mass problem into a constant-length problem based on a mass-spring model that discretizes the cable. A three-dimensional atmospheric turbulence field is built using a recursive function to model the complex perturbation field along the cable. A horseshoe vortex model is adopted to simulate the towing airplane’s wake. Simulation analysis shows that both the reel-in speed and turbulence significantly affect the retrieval deviation, whereas the airplane’s wake has little influence. The reel-in speed should be chosen in concert with the turbulence intensity to achieve a high retrieval success rate. Moreover, a higher reel-in speed is preferred to maintain cable strain and smoothen the process when the retrieval tolerance is satisfied.

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