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Your search keyword '"A. Lucifredi"' showing total 79 results
Start Over Author "A. Lucifredi" Publication Year Range More than 50 years ago
79 results on '"A. Lucifredi"'

3. Summary

Author

Bona, C., Galletti, C., Lucifredi, A., Bona, C., Galletti, C., and Lucifredi, A.

Published
1974
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20. Summary

Author

Bona, C., primary, Galletti, C., additional, and Lucifredi, A., additional

Published
1974
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43. Two examples of applications of Kalman filtering to integrated systems of navigation

Author

Ferraro, A and Lucifredi, A. L

Subjects
Navigation
Abstract

Two applications of optimal stochastic filters to navigation systems are described. The first is an air navigation system consisting of an inertial device (INS) and a Loran, plus an altimeter. The second is an application to a system of submarine navigation consisting of an inertial device (SINS) and an Omega plus a depth sensor.

Published
1970

44. Criteria for the Choice of a Capacitive Device for Mechanical Measurements

Author

Lucifredi, A. L

Subjects
Instrumentation And Photography
Abstract

The advantages and disadvantages of different models of capacitive transducers and of various signal conditioning circuits are discussed with particular emphasis on the field of applications. A practical example of a design procedure is discussed.

Published
1970

45. Hybrid computers and simulation languages in the study of dynamics of continuous systems

Author

Acaccia, G. M and Lucifredi, A. L

Subjects
Computers
Abstract

A comparison is presented of the use of hybrid computers and simulation languages as a means of studying the behavior of dynamic systems. Both procedures are defined and their advantages and disadvantages at the present state of the art are discussed. Some comparison and evaluation criteria are presented.

Published
1970

46. Capacitive transducers

Author

Lucifredi, A. L

Subjects
Electronic Equipment
Abstract

The theory, applications, and possible structural designs of capacitive transducers are presented. Emphasis is placed on the circuits used in connection with the sensors, such as AM, FM, resonant circuits, mode circuits, direct current circuits, and special circuits. Some criteria for selection of a design or the purchase of a commercial device are given.

Published
1970

47. On the simulation of dynamic systems and their graphic display by hybrid computer

Author

Aldo Rossi, Aleramo Lucifredi, and C. Galletti

Subjects
Numerical Analysis, General Computer Science, Computer science, Applied Mathematics, Modeling and Simulation, Computer graphics (images), Hybrid computer, Representation (mathematics), Hybrid computation, Theoretical Computer Science, Range (computer programming)
Abstract

Starting from recent computer display technique developments, the paper illustrates some examples of graphic representation of dynamic systems for cases where the model is partly simulated on a parallel computer and partly described in a digital program, in order to take full advantage of the range of a hybrid computation unit.

Published
1974
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49. The Dynamics of a Non Rigid Spinning Satellite Containing Oscillating Liquids

Author

R.C. Michelini, D. Dini, and A. Lucifredi

Subjects
Propellant, Engineering, Classical mechanics, business.industry, Perturbation (astronomy), Experimental work, Mechanics, business, Spinning
Abstract

Summary The study recalls some mathematical aspects of the dynamics of a non-rigid satellite spin stabilized taking into consideration the behaviour of the liqiid propellant. In particular the two main cases of quasi-full tanks under large satellite maneuvers and of perturbation on a quasi-staedy spin motion are discussed and general analytical models are established. The study has provided the mathematical frame for the experimental work in order to make the identification of the system possible.

Published
1970
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50. Computer-aided automatic design

Author

A. Lucifredi, C. Galletti, and C. Bona

Subjects
Supervisor, Underline, Mechanics of Materials, Computer science, business.industry, Mechanical Engineering, Computer-aided, Bioengineering, Engineering design process, Software engineering, business, Profit (economics), Computer Science Applications
Abstract

After a survey of the design process to underline the different stages in which the use of a computer can be utilized with profit, some programs developed to assist the mechanical designers in their job are discussed. These are organized into an integrated system made up of a supervisor (MLINK), two basic languages (MEDES and TEADI), and several post-processors which are briefly described. Further improvements of the system are also discussed concerning new programs to be developed and new types of hardware to be adopted.

Published
1973
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