Tyre model development using co-simulation technique for helicopter ground operation

Wang, Yun; Blundell, Mike; Woodand, G.; Bastien, Christophe

doi:10.1177/1464419314541638

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…Studies of elastic wheels rolling process (both theoretical and experimental) in order to determine their kinematic and power parameters are reflected in numerous publications, for example, in [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

On the question of the smallest rolling resistance coefficient value of elastic wheel on a rigid horizontal surface

Мамаев

Балабина²,

Karelina³

2023

E3S Web of Conf.

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As is known, rolling resistance of an elastic wheel on a rigid support surface is determined by internal friction losses (hysteresis) in the wheel material and friction losses in the contact of wheel with support surface (friction losses in the hub bearings and aerodynamic losses are neglected due to their smallness compared to with the above). To assess rolling resistance, the rolling resistance coefficient is used, which is defined as ratio of rolling resistance force applied to the wheel axle to the normal reaction on the wheel. Its value can be determined experimentally or by analytical dependencies. In this article, an analytical derivation of equation for calculating rolling resistance coefficient is given, followed by determining conditions under which this coefficient will be minimal.

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Section: Introductionmentioning

confidence: 99%

On the question of the smallest rolling resistance coefficient value of elastic wheel on a rigid horizontal surface

Мамаев

Балабина²,

Karelina³

2023

E3S Web of Conf.

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“…23,24 Combining both of them, the point follower approach was used to develop a new tyre model in the analysis of helicopter dynamics. 25 In particular, a belt-sidewall model has been proposed based on the membrane theory and also been verified through experiments recently 26 , the relation of radial force and the tyre compression can be expressed as follows in which, parameters are illustrated in Figure 3. Since the tyres B 6 and B 9 are regarded as flexible bodies without rigid constrains, additional constraints should be imposed on the movement of tyre-deck contact points P 11 and P 12 .…”

Section: Depiction Of Sub-modulesmentioning

confidence: 93%

Section: Steam Catapult Modulementioning

confidence: 95%

Multi-body coupling dynamic research of carrier-based aircraft catapult launch based on natural coordinate method

Apeng

Shu

Zhu

2018

Proceedings of the Institution of Mechanical Engineers, Part K:

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There is an increasing demand for predicting the dynamic behaviours of carrier-based aircrafts(CBAs) during catapult launch. This paper presents a maximal parameterised dynamic model of the launch process from a new perspective, and conducts a detailed study of its mechanical behaviours. Based on the topological analysis of the multi-body catapult launch system, the natural coordinate method is adopted to establish a comprehensive model including steam catapult, landing gears, ship motion, aerodynamic and multi-body modules. The predictive capability of the model is demonstrated by presenting the CBA launch dynamic properties under different conditions. First, effects of steam flow area rate and the coupling carrier movement in different directions on catapult performance are discussed. Second, the take-off characteristics as well as the initial catapult attitude are analysed. Then, by investigating Lagrange multipliers, the loads of torque arms, holdback bar and launch bar are compared. Finally, the loads of buffer struts and tyres during launch are also discussed. The results show that it is reasonable to keep the steam flow area increasing in a linear way, but the opening velocity needs to be strictly controlled. When the CBA departs from the deck, the possible sink of the bow is the major threat to the take-off safety, the larger the sink is, the more dangerous the flight becomes. The upwash at the bow may be the primary reason of stall and cannot be ignored. The model established is reliable with capacities of capturing the coupled behaviours between different sub-modules as well as the load change of each component in detail. The natural coordinate method proves to be efficient and accurate, which should be given more attention.

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“…A precise tire-road interaction modeling method is crucial for understanding and estimating the tire camber performance. Over the past decades, many efforts, including empirical method, analytical method and numerical simulation, have been focused on the study of pneumatic tire modeling [11][12][13][14][15][16][17][18][19][20][21][22]. FEM has been utilized extensively in the simulation of tire models due to its capability to solve complicated structural behaviors combining the nonlinearity of a material and geometry.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigation on the camber performance of a non-pneumatic mechanical elastic wheel

Zhao

Lin

et al. 2017

J Braz. Soc. Mech. Sci. Eng.

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I 1 First Green strain invariable I 2 Second Green strain invariable R r0 Free rolling radius s Slip ratio u w Longitudinal velocity of the wheel center W Strain energy density function ω Angle velocity Keywords Non-pneumatic tire • Finite element analysis • Camber performance • Contact pressure • Experimental test Abbreviations C ij Rivlin coefficient Technical Editor: Kátia Lucchesi Cavalca Dedini.

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Tyre model development using co-simulation technique for helicopter ground operation

Cited by 3 publications

References 7 publications

On the question of the smallest rolling resistance coefficient value of elastic wheel on a rigid horizontal surface

On the question of the smallest rolling resistance coefficient value of elastic wheel on a rigid horizontal surface

Multi-body coupling dynamic research of carrier-based aircraft catapult launch based on natural coordinate method

Numerical and experimental investigation on the camber performance of a non-pneumatic mechanical elastic wheel

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