1–5 of 5 hits
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    Vortex-induced vibration for an isolated circular cylinder under the wake interference of an oscillating airfoil: Part II. Single degree of freedom

    Zhang, G.Q. / Ji, L.C. / Hu, X. | Elsevier | 2017
    Keywords: Oscillating amplitude (m) , damping of the system (N·s/m) , Diameter of cylinder (m) , vortex-induced coupling force (N) , stiffness of the spring (N/m) , width of airfoil (m) , Reduced velocity (Vr=U/(fND) , m , kinematic viscosity of the fluid (cm2s1) , center position of the cylinder (m) , free stream velocity (m/s) , oscillating frequency of airfoil (s1) , fN

    A new approach in multidisciplinary design optimization of upper-stages using combined framework

    Adami, Amirhossein / Mortazavi, Mahdi / Nosratollahi, Mehran | Elsevier | 2015
    Keywords: V T a n k , R T a n k , V f u e l , V T a n k f u e l , V o x , V T a n k o x , V e m p t y , V P r e s s . T a n k , R P r e s s . T a n k , M P r e s s . G a s , M e , L f i l m , m ̇ , m ̇ f i l m , m ̇ v a p , P c o m b , T c o m b , V c o m b , L c o m b , n S . F , V i n j , δ c o m b , D c o m b , R c o m b , θ 1 , δ T a n k s p h , δ T a n k c y l , Z e x p a n t i o n , δ n o z z l e , L c o n , n σ

    Modelling and experimental identification of spring-damping properties of the off-road vehicle rubber tracks, rubber belts, and rubber-bushed tracks subjected to flexural vibrations

    Chołodowski, Jakub | Elsevier | 2023
    Keywords: bi, b n , b 1 , C1, C1′ , E, E0, E1, E2, E3, En , the bending frequency applied to a track or belt in the p-th of n cyclic bending tests, [Hz] , the scaling factor used to calculate the reaction moment captured by the acceleration sensor installed in the test stand shown in Fig. 12, [kg·m2·s2·(mV)-1] , k n , k 0 through k 9, stiffness of the torsion spring representing the elastic properties of a real track or belt in the model shown in Fig. 10, [Nm/rad] , Mbi , MC , MC ,acc , MC ,lc , Mi, M n , M 1 , Msi , M0 , n , the iterator that indicates an individual experiment within the series of n cyclic bending tests on a real track or belt , linear velocity of a vehicle, [m/s] , strain rate, [s1] , η, η 0 , η 1 , η 2 , η 3 , η n , the ratio of the stiffness coefficient ki to the damping coefficient bi of the elements of the i-th Maxwell-element of the joint model shown in Fig. 10b, [s1] , θ1 ,θ 2 , θ i , θ n , the angular frequency of excitation applied to a real track or belt in the p-th (of n) cyclic bending test, [rad/s]

    Short-sea shipping contributions to particle concentration in coastal areas: Impact and mitigation

    Di Natale, Francesco / Carotenuto, Claudia / Cajora, Alessia et al. | Elsevier | 2022
    Keywords: Number concentration of particles in the background air, in 1/m3 , Number concentration of particles deriving from ships’s engines, in 1/m3 , Emission factor of the engine at 25% load, in mg/kWh or 1/kWh , Emission factor of the engine at 75% load, in mg/kWh or 1/kWh , is the average emission factor for a single ship journey, g/journey or 1/journey , nexp , nt , Average hourly number of travels in a day, in 1/h , Particulate number concentration, in 1/m3 , tm

    Ground-based measurements of cloud and aerosol optical depths in the UV-B at an urban tropical site

    Silva, A.A. | Elsevier | 2023
    Keywords: C 1(λi) , mAt , mMS , mO3 , mP , N , SZAn , σ τ M S λ