Mechanism of hydration of simple olefins in aqueous solution. cis- and trans-cyclooctene
Hydratation des cis- et trans-cyclooctenes et du dimethyl-2,3 butene-2 en alcools correspondants dans divers milieux
In order to study the unit's movement law,a transient dynamic response model of large hydroelectric machines is established.The model couples the whole unit such as main shaft,generator rotor,turbine runner and various bearing supporting,and involves consistent quality of the unit shaft,gyroscopic inertia and angular inertia.The finite element method and direct numerical integration method are used in the calculation.Through an engineering example,the numerical simulations of time-course response and axes contrail are respectively carried out when the units are acted under transient initial displacements and transient imbalance loads.The calculated results are discussed and analyzed.By means of comparison between calculated and measured data,their results are close.