This paper deals with the study and comparison of passive and active landing gear system of  the aircraft and dynamic responses due to runway irregularities while the aircraft is taxying. The dynamic load and vibration caused by the unevenness of runway will result in airframe fatigue, discomfort of passengers and the reduction of the pilot’s ability to control the aircraft. One of the objectiv...

todays, dynamic models are supposed as the most important tools in erosion and sediment phenomenadue to their complexities and existence of many affecting factors. towards, the present study wasconducted in the kojour watershed for daily sediment modeling using daily rainfall, discharge andsediment during 2007 to 2010. the modeling process was carried out all data and the monthly andseasonally ...

Application of Granular Activated Carbon (GAC) in adsorption process has been studied for the advanced treatment of municipal and industrial wastewater. Because of entering poisonous compounds such as furfural, phenol and sulfides into the oily wastewater of Tehran refinery, biological aeration basins of wastewater treatment unit may not have the desired performance of COD reductio...

This article develops a dynamic model for six-degree-of-freedom bearingless linear motor systems by means of lumped-element modeling. A four-sided system, containing eight three-phase units fed their own inverters, is considered as an example but the modeling approach can be applied to other well. The mechanical subsystem comprises rigid-body dynamics. electromagnetic governs electrical dynamic...

The paper proposes an approach for the efficient model order reduction of dynamic contact problems in linear elasticity. Instead augmented Lagrangian method that is widely used mechanical problems, we prefer here Linear Complementarity Programming (LCP) as basic methodology. It has advantage resulting much smaller dual problem associated with governing variational principle and turns out to be ...