The parametric uncertainty induced by the damping coefficient of the system is estimated by the designed adaptive law, which is constructed by ensuring the estimation error converges to zero. The non-parametric
In subject area: Engineering Seismically induced rockfall occurs when a volume of rock that was previously stable under static loading conditions is accelerated by an incoming seismic wave, generating forces that are too larger for the support system to handle (Kaiser and Cai, 2012). ...
It was found that coefficient of static torque was found to be maximum at an optimum rotor angle of 30° minimum at a rotor angle of 165° for all the rotors studied. The negative coefficient of static torque was observed for all the three rotors from a rotor angle of 135° to 165° ...
On the other hand, the timescale for the heat exchange between the system and bath is determined by the mobility (or diffusion coefficient) of the particle. Thus, by setting the mobility sufficiently small, we could realize the above-mentioned timescale separation....
w2are the velocity components of the two bearing surfaces in thex,y,zdirections, respectively,μis the air viscosity coefficient,u1=w1=w2=0,πu2=ω⋅r=πrn030,ωis the rotor angular velocity,ris the rotor radius, andn0is the rotation speed of the rotor. Therefore, the transient ...
This model structure displays a number of nice properties arising in real-world applications: The friction model is symmetric around the origin The static friction coefficient is approximated by g(1)+g(4) The first term of the equation, tanh(g(2)*v(t)) - tanh(g(3)*v(t)), captures ...
(13), the key to establishing the relationship between macroscopic and microscopic parameters is to determine the coefficient matrix\(\textbf{A}\). There are various ways to obtain the matrix A. Here, we can solve\(\textbf{X} _{1}\),\(\textbf{X} _{2}\),\(\textbf{X} _{3}\)...
The SM ST6C block implements a synchronous-machine-type ST6C static excitation system model in conformance with IEEE Std 421.5-2016 [1]. Use this block to model the control and regulation of the field voltage of a synchronous machine. Switch between continuous and discrete implementations of the...
As a first step in calculating the stagnation pressure coefficient in compressible flow, we rewrite the dynamic pressure as follows: (2.41)12ρv2=12(ργp)γpv2=12γpv2a2=12γpM2 where M is Mach number. When the ratio of the specific heats is given the value 1.4 (the approximate value...
A static var compensator which includes a transformer with one end connected to an electric power system and a series circuit constituted by a reactor and a thyristor bulb connected between the other