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Journal Articles

Discussion: “Experimental Flight Methods for Evaluating Frequency-Response Characteristics of Aircraft” (Smith, G. A., and Triplett, W. C., 1954, Trans. ASME, 76, pp. 1383–1390)

Sidney Lees
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Discussions
J. Fluids Eng. November 1954, 76(8): 1391.
https://doi.org/10.1115/1.4015185
Published Online: July 1, 2022
View Article titled, Discussion: “Experimental Flight Methods for Evaluating Frequency-Response Characteristics of Aircraft” (Smith, G. A., and Triplett, W. C., 1954, Trans. ASME, 76, pp. 1383–1390)
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Topics: Aircraft, Flight, Frequency response
Journal Articles

Discussion: “Control-System Behavior Expressed as a Deviation Ratio” (Janssen, J. M. L., 1954, Trans. ASME, 76, pp. 1303–1309)

Sidney Lees
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Discussions
J. Fluids Eng. November 1954, 76(8): 1310–1311.
https://doi.org/10.1115/1.4015154
Published Online: July 1, 2022
View Article titled, Discussion: “Control-System Behavior Expressed as a Deviation Ratio” (Janssen, J. M. L., 1954, Trans. ASME, 76, pp. 1303–1309)
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Topics: Control systems
Journal Articles

Discussion: “Development of a Miniature Electrohydraulic Actuator” (Lee, S.-Y., and Shearer, J. L., 1955, Trans. ASME, 77, pp. 1077–1086)

Sidney Lees
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Discussions
J. Fluids Eng. October 1955, 77(7): 1086.
https://doi.org/10.1115/1.4014596
Published Online: July 1, 2022
View Article titled, Discussion: “Development of a Miniature Electrohydraulic Actuator” (Lee, S.-Y., and Shearer, J. L., 1955, Trans. ASME, 77, pp. 1077–1086)
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Topics: Actuators
Journal Articles

Design Basis for Multiloop Positional Servomechanisms

Sidney Lees
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. August 1956, 78(6): 1339–1366.
https://doi.org/10.1115/1.4014033
Published Online: February 21, 2022
View Article titled, Design Basis for Multiloop Positional Servomechanisms
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Topics: Design, Servomechanisms, Uncertainty
Journal Articles

Discussion: “Dynamic Analysis of Chemical Processes” (Holzmann, E. G., 1956, Trans. ASME, 78, pp. 251–257)

Sidney Lees
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Discussions
J. Fluids Eng. February 1956, 78(2): 257–258.
https://doi.org/10.1115/1.4013629
Published Online: February 21, 2022
View Article titled, Discussion: “Dynamic Analysis of Chemical Processes” (Holzmann, E. G., 1956, Trans. ASME, 78, pp. 251–257)
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Topics: Chemical processes, Dynamic analysis
Journal Articles

Closure to “Discussion of ‘Design Basis for Cascade-Type Positional Servomechanisms’” (1957, Trans. ASME, 79, p. 1896)

Sidney Lees, T. C. Blaschke
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Closures
J. Fluids Eng. November 1957, 79(8): 1896.
https://doi.org/10.1115/1.4013523
Published Online: February 14, 2022
View Article titled, Closure to “Discussion of ‘Design Basis for Cascade-Type Positional Servomechanisms’” (1957, Trans. ASME, 79, p. 1896)
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Topics: Cascades (Fluid dynamics), Design
Journal Articles

Design Basis for Cascade-Type Positional Servomechanisms

Sidney Lees, T. C. Blaschke
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. November 1957, 79(8): 1873–1895.
https://doi.org/10.1115/1.4013521
Published Online: February 14, 2022
View Article titled, Design Basis for Cascade-Type Positional Servomechanisms
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Topics: Cascades (Fluid dynamics), Design, Servomechanisms, Damping, Uncertainty
Journal Articles

Interpreting Dynamic Measurements of Physical Systems: Part I—Aims and Objectives

Sidney Lees
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. May 1958, 80(4): 833–856.
https://doi.org/10.1115/1.4012537
Published Online: January 25, 2022
View Article titled, Interpreting Dynamic Measurements of Physical Systems: Part I—Aims and Objectives
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Topics: Linear systems
Journal Articles

Numerical Fourier Transform Calculations for Pulse Testing Procedures

Sidney Lees, Ray C. Dougherty
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. June 1967, 89(2): 445–449.
https://doi.org/10.1115/1.3609632
Published Online: June 1, 1967
View Article titled, Numerical Fourier Transform Calculations for Pulse Testing Procedures
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Topics: Fourier transforms, Testing, Transfer functions, Approximation, Fourier transform spectroscopy, Theorems (Mathematics)
Journal Articles

Uncertainty and Imprecision

Sidney Lees
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. June 1966, 88(2): 369–378.
https://doi.org/10.1115/1.3645863
Published Online: June 1, 1966
View Article titled, Uncertainty and Imprecision
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Topics: Uncertainty, Statistical distributions, Performance, Probability, Theorems (Mathematics)