Helicopter rotor sailing by non-smooth dynamics co-simulation
Journal Title: Archive of Mechanical Engineering - Year 2014, Vol 0, Issue 2
Abstract
This paper presents the application of a co-simulation approach for the simulation of frictional contact in general-purpose multibody dynamics to a rotorcraft dynamics problem. The proposed approach is based on the co-simulation of a main problem, which is described and solved as a set of differential algebraic equations, with a subproblem that is characterized by nonsmooth dynamics events and solved using a timestepping technique. The implementation and validation of the formulation is presented. The method is applied to the analysis of the droop and anti-flap contacts of helicopter rotor blades. Simulations focusing on the problem of blade sailing are conducted to understand the behavior and assess the validity of the method. For this purpose, the results obtained using a contact model based on Hertzian reaction forces at the interface are compared with those of the proposed approach.
Authors and Affiliations
Pierangelo Masarati, Matteo Fancello, Marco Morandini
Keywords
Related Articles
- EP ID EP167184
- DOI 10.2478/meceng-2014-0015
- Views 81
- Downloads 0
On the critical points of vertical vibration in a railway vehicle
This paper evaluates the level of the vertical vibrations in a railway vehicle carbody generated by the track irregularities and examines the position of the critical point from the comfort perspective. The issue is revi...
Experimental investigations of a drifting cloud of droplets dispersed from aircraft
With widespread use of pesticides in modern agriculture, the impacts of spray drift have become a topic of considerable interest. The drifting of sprays is a highly complex process influenced by many factors. The paper p...
Helicopter rotor sailing by non-smooth dynamics co-simulation
This paper presents the application of a co-simulation approach for the simulation of frictional contact in general-purpose multibody dynamics to a rotorcraft dynamics problem. The proposed approach is based on the co-si...
Tracking control of a balancing robot – a model-based approach
This paper presents a control concept for a single-axle mobile robot moving on the horizontal plane. A mathematical model of the nonholonomic mechanical system is derived using Hamel’s equations of motion. Subsequently,...
Free vibration of piezo-nanowires using Timoshenko beam theory with consideration of surface and small scale effects
This paper investigates the influence of surface effects on free transverse vibration of piezoelectric nanowires (NWs). The dynamic model of the NW is tackled using nonlocal Timoshenko beam theory. By implementing this t...