In this paper, a sliding mode control (SMC -based guidance law iSMC -basedd to satisfy the terminal anguidancetraint.
Considering the conditions of miss distance, impact angle and terminal angle of attack, the general formulation of a new guidance law with an arbitrary system order is deduced by solving the Riccati equation of the quadratic optimal control.
This paper proposed a new fast nonsingular terminal sliding mode to design terminal angle constraint guidance for intercepting maneuvering targets with attenuating the chattering of the command in the guidance law.
The probe consisted of three rows of five detector fiber bundles and three rows of five source fibers interleaved in a regular pattern and cast in silicone to keep the interoptode distances and terminal angles constant, yet giving the probe flexibility.
The terminal contact angle is assumed to be equal to the equilibrium contact angle, θ eq, in Young's equation [25]: gamma_{text{S}} = gamma_{text{SL}} + gamma_{text{L}} cos theta_{text{eq}} (6).
Similarly, it was found highest the bulk density, terminal velocity, angle of repose for Capitol.
With the increase of zirconium film thickness from 160 nm to 670 nm, the terminal contact angle decreases gradually and spreading rate increased and the precursor film became wider and thicker.
Some engineering characteristics such as: average length, diameter, the geometric mean diameter, surface area, sphericity, volume, 1000-seed weight, bulk and true densities, porosity, terminal velocity, angle of repose, coefficient of static friction and rupture strength were studied.
The guidance command of TPG is initially assumed as a polynomial form of tgo, and then the coefficients of this polynomial function are designed to satisfy the terminal impact angle and zero miss-distance constraints.
The values of the length, width, thickness, geometric mean diameter, sphericity, projected area, thousand grain mass, terminal velocity, angle of repose and dynamic coefficient of friction of grains increased as the moisture content increased.
In order to further analyze the accuracy of the criterion, several typical fault types are tested and the two terminal phase angle changes are compared.
