Honeywell

About: Honeywell is a company organization based out in Charlotte, North Carolina, United States. It is known for research contribution in the topics: Signal & Control theory. The organization has 24827 authors who have published 33281 publications receiving 537290 citations. The organization is also known as: Honeywell International, Inc. & Minneapolis Heat Regulator Company.

Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures

Abstract: This paper considers fracture characteristics of OFHC copper, Armco iron and 4340 steel. The materials are subjected to torsion tests over a range of strain rates, Hopkinson bar tests over a range of temperatures, and quasi-static tensile tests with various notch geometries. A cumulative-damage fracture model is introduced which expresses the strain to fracture as a function of the strain rate, temperature and pressure. The model is evaluated by comparing computed results with cylinder impact tests and biaxial (torsion-tension) tests.

Humans and Automation: Use, Misuse, Disuse, Abuse

Abstract: This paper addresses theoretical, empirical, and analytical studies pertaining to human use, misuse, disuse, and abuse of automation technology. Use refers to the voluntary activation or disengagement of automation by human operators. Trust, mental workload, and risk can influence automation use, but interactions between factors and large individual differences make prediction of automation use difficult. Misuse refers to over reliance on automation, which can result in failures of monitoring or decision biases. Factors affecting the monitoring of automation include workload, automation reliability and consistency, and the saliency of automation state indicators. Disuse, or the neglect or underutilization of automation, is commonly caused by alarms that activate falsely. This often occurs because the base rate of the condition to be detected is not considered in setting the trade-off between false alarms and omissions. Automation abuse, or the automation of functions by designers and implementation by man...

Automatic Control Systems

Abstract: From the Publisher: Automatic Control Systems Seventh Edition Benjamin C. Kuo Updated to reflect the increasing use of computer-aided learning and design, the seventh edition of Automatic Control Systems features a new, accessible approach for students taking introductory courses on control systems while retaining the depth and rigor of Benjamin Kuo’s classic, best-selling text. This new edition integrates several real world applications throughout the text, covering both analysis and design. Other new features include:*demonstration of the solution of complex problems with the aid of computer software*thorough discussion of steady-state error analysis, including nonunity-feedback systems*discussion of circuit realization of controller transfer functions*simplified treatment of Nyquist criterion on systems with nonminimum-phase transfer functions*discussion of time-domain and frequency-domain designs side by side in one chapter*added chapter on design of discrete-data control systemsThe text also includes an abundance of illustrative examples, problems, and marginal notes to highlight important points and comments. Contents include full chapters on: • mathematical foundation • transfer functions, block diagrams, and signal-flow graphs • mathematical modeling of physical systems • state-variable analysis • stability of linear control systems • time-domain analysis of control systems • root-locus techniques • frequency-domain analysis • design of control systems • design of discrete-data control systems

Multivariable feedback design: Concepts for a classical/modern synthesis

Abstract: This paper presents a practical design perspective on multivariable feedback control problems. It reviews the basic issue-feedback design in the face of uncertainties-and generalizes known single-input, single-output (SISO) statements and constraints of the design problem to multiinput, multioutput (MIMO) cases. Two major MIMO design approaches are then evaluated in the context of these results.

Analysis of feedback systems with structured uncertainties

Abstract: The paper introduces a general approach for analysing linear systems with structured uncertainty based on a new generalised spectral theory for matrices. The results of the paper naturally extend techniques based on singular values and eliminate their most serious difficulties.