Numerical investigation of BPF noise for flexible submarine propeller design including inertial force coupling

https://link.springer.com/content/pdf/10.1007/s00773-021-00859-1.pdf

Principles of underwater sound

Monograph on sound generation by turbulence and surfaces in arbitrary motion, discussing sound and multipole fields and governing equations

/pdf/sound-generation-by-turbulence-and-surfaces-in-arbitrary-1fseb79yah.pdf

Sound Generation by Turbulence and Surfaces in Arbitrary Motion

Propulsion technology is a complex, multidisciplinary topic with design, construction, operational and research implications Bringing together a wealth of disparate information from the field, "Marine Propellers and Propulsion" provides comprehensive and cutting edge coverage to equip marine engineers, naval architects and anyone involved in propulsion and hydrodynamics with the knowledge needed to do the job Drawing on experience from a long and varied career in consultancy, research, design and technical investigation, author John Carlton breaks the subject into three main sections-hydrodynamic theory, materials and mechanical considerations, and design, operation and performance Connecting essential theory to practical problems in design, analysis and operational efficiency, "Marine Propellers and Propulsion" is an invaluable resource, packed with hard-won insights, detailed specifications and data This is the most complete book available on marine propellers, fully updated and revised, with new chapters on propulsion in ice and high speed propellers It gathers together otherwise disparate material on the theory and practice of propulsion technology from the past 40 years' development, including the latest developments in improving efficiency It is written by a leading expert on propeller technology, essential for students, marine engineers and naval architects involved in propulsion and hydrodynamics

Marine Propellers and Propulsion

The equations of motion are developed by two complementary methods, Hamilton's principle and the Newtonian method. The resulting equations are valid to second order for long, straight, slender, homogeneous, isotropic beams undergoing moderate displacements. The ordering scheme is based on the restriction that squares of the bending slopes, the torsion deformation, and the chord/radius and thickness/radius ratios are negligible with respect to unity. All remaining nonlinear terms are retained. The equations are valid for beams with mass centroid axis and area centroid (tension) axis offsets from the elastic axis, nonuniform mass and stiffness section properties, variable pretwist, and a small precone angle. The strain-displacement relations are developed from an exact transformation between the deformed and undeformed coordinate systems. These nonlinear relations form an important contribution to the final equations. Several nonlinear structural and inertial terms in the final equations are identified that can substantially influence the aeroelastic stability and response of hingeless helicopter rotor blades.

https://ntrs.nasa.gov/api/citations/19750005242/downloads/19750005242.pdf

Nonlinear equations of motion for the elastic bending and torsion of twisted nonuniform rotor blades

Effective control laws for mechanical systems are best designed by professionals who understand both the basic mechanics of the system under consideration and the control methodology being used to design the control law. This textbook is the first to blend two traditional disciplines: engineering mechanics and control engineering. Beginning with theory, the authors proceed through computation to laboratory experiment and present actual case studies to illustrate practical aerospace applications. Intended for first-year graduate students in engineering and applied science, this book will help the next generation of structural dynamists and control engineers gain broad competence in mechanics and control. A software package, SDCMO: Structural Dynamics and Control MATLAB Operators, complements this important new teaching tool. A 100-page solutions manual is available for professors.

Numerical investigation of BPF noise for flexible submarine propeller design including inertial force coupling

References

Principles of underwater sound

Sound Generation by Turbulence and Surfaces in Arbitrary Motion

Marine Propellers and Propulsion

Nonlinear equations of motion for the elastic bending and torsion of twisted nonuniform rotor blades

Introduction to Dynamics and Control of Flexible Structures