Results 231 to 240 of about 384,742 (267)

Segmented Optimal Guidance with Constraints on Terminal Angle of Attack and Impact Angle

50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2012
Guidance law with constraint on both terminal ight path angle and terminal angle of attack was considered.Linearized missile airframe and rst order missile dynamics were taken into account to add the angle of attack as a state of the guidance equation.
Qiang Xing, Wanchun Chen
openaire   +1 more source

Impact of Intersection Angle on Highway Safety

2021
The preferred design for conventional intersections includes adjacent legs that intersect at 90 degrees. However, there are occasions when physical constraints result in intersection angles less than 90 degrees and thus produce skewed intersections. Skewed intersections may create potential safety and operational problems for both motorists and non ...
Kumfer, Wesley, Nujjetty, Anusha patel, Carter, Daniel, Lan, Bo, Harkey, David L., Srinivasan, Raghavan   +5 more
openaire   +1 more source

Impact angle control for planar engagements

IEEE Transactions on Aerospace and Electronic Systems, 1999
A new and practical terminal guidance law is presented for impact angle control for two-dimensional active homing engagement scenarios. Impact angle control is required to enhance terminal effectiveness of antitank and antiship missile systems in particular.
T.L. Song, S.J. Shin, H. Cho
openaire   +1 more source

Right-angle impaction and rebound of particles

Journal of Aerosol Science, 1993
Abstract When a particle impacts on a surface, its kinetic energy is partitioned into energy lost in plastic deformation and energy stored in elastic deformation. Previous theoretical models have recognized that the plastically deformed layer hardens to an elastic stress limit that may significantly exceed the one of the original material.
Mindi Xu, Klaus Willeke
openaire   +1 more source

A nonlinear impact-angle guidance law

International Journal of Intelligent Unmanned Systems, 2017
Purpose The purpose of this paper is to propose a new nonlinear guidance law to satisfy terminal impact-angle constraints against a stationary target in every possible planar surface-to-surface engagement scenario. The proposed guidance scheme is developed based on the geometry of a circular arc trajectory.
Mandar Bhanudas Kamalaskar, S. Aditya Varma, Mangal Kothari   +2 more
openaire   +1 more source

The impact of junction angle on tunnel FETs

Ulis 2011 Ultimate Integration on Silicon, 2011
We derive an analytical model based on circular tunnel paths along the electric field to describe the behavior of a tunnel FET with a junction angle at the source. The model is compared with simulation results and qualitative agreement is observed. We further demonstrate that a small junction angle prevents TFET performance degradation resulting from a
Frank K. H. Kao, Anne S. Verhulst, William G. Vandenberghe, Guido Groeseneken, Kristin De Meyer   +4 more
openaire   +1 more source

Impacts of TCSC and FSC on the Power-Angle

Advanced Materials Research, 2012
The Characteristics of FSC (Fixed Series Compensation) and TCSC (Thyristor Controlled Series Capacitor) damping power-angle oscillation and increasing the limit of power transmission were analyzed. FSC can damp the power-angle in a certain extent.
Zhi Duan, Hai Bao, Hong Shen
openaire   +1 more source

Impact Time and Angle Control Guidance

AIAA Guidance, Navigation, and Control Conference, 2015
In this paper, a guidance strategy, which extends the existing impact angle control guidance laws to cater to the impact time constraints as well, is proposed. This guidance scheme is based on switching between sliding mode control based impact time control guidance law and the impact angle control guidance laws.
Shashi Ranjan kumar, Debasish Ghose
openaire   +1 more source

The Effect of Impact Angle on the Erosion of Cermets

2001
The erosive wear resistance of ceramic metal composites with different composition, structure and properties has been investigated. It has been shown that the wear resistance of cermets cannot be estimated only by hardness. The differences in wear resistance between cermet materials with equal hardness levels can be attributed to differences in their ...
Irina Hussainova, Jakob Kubarsepp
openaire   +1 more source

An Internal Angle Guidance Law with Impact Angle and Time Constraints

2021
Liang Yong, Zhang You’an, Yan Shi
openaire   +1 more source