scispace - formally typeset
Search or ask a question

Cantilevered flexible plates in axial flow 


Best insight from top research papers

Cantilevered flexible plates in axial flow are studied in several papers. The stability and dynamics of these plates are investigated using numerical simulations and experimental methods. The introduction of full non-linear structural and fluid mechanics in the analysis shows that the system settles into finite-amplitude oscillations . The stability analysis of the flexible plates considers the added mass, added damping, and added stiffness effects . The introduction of damping stabilizes the system and leads to optimal points for energy harvesting . The dynamics of the cantilevered flexible plates are analyzed using a nonlinear equation of motion coupled with an unsteady lumped vortex model for the aerodynamic part . Experimental results show periodic and chaotic oscillations, and the critical flow velocities for flutter onset are in good agreement with the theoretically predicted values .

Answers from top 5 papers

More filters
Papers (5)Insight
The paper investigates the dynamics of cantilevered flexible plates in axial flow, specifically analyzing the instability and post-critical behavior of the fluid-structure system. The effects of plate length and aspect ratio on critical flow velocity are also studied.
The paper discusses the stability of a stationary flexible cantilevered plate in an axial flow. It derives the equation of motion for the plate and performs stability analysis using complex eigenvalue analysis and non-circulatory aerodynamic theory.
The paper compares the power output of two different spring-mounting systems for lifting flexible plates in ideal flow, one of which is a cantilevered thin flexible plate aligned with a uniform flow.
Book ChapterDOI
Richard Howell, Anthony D. Lucey 
21 Aug 2017
2 Citations
The paper discusses the fluid-structure interaction of a cantilever mounted on a non-linear spring in a uniform axial flow. It compares results with a linear system mounted on a non-linear spring and analyzes the change in physical phenomena. However, it does not specifically mention "cantilevered flexible plates" in axial flow.
The paper investigates the stability of flexible cantilevered plates subjected to axial flow. The analysis methods used include the coupled solution, non circulatory solution, and circulatory solution.

Related Questions

Cantilever can apply something4 answersCantilevers can be utilized for various applications such as sensing, temperature measurement, and even actuation. Cantilever-based sensors have shown promise in detecting proteins, DNA, antigens, and more biological targets. Additionally, cantilever beams have been employed as highly sensitive temperature sensors, where the deflection of the beam due to temperature changes can be measured. Moreover, cantilevers can be used for actuation purposes, as demonstrated by the creation of a millimetric-sized cantilever from a photo-driven azobenzene polymer that can oscillate under laser radiation. Therefore, cantilevers can indeed apply various functions ranging from sensing to actuation, making them versatile tools in different fields of research and technology.
Cantilever erection method for steel truss bridge5 answersThe invention provides various methods for cantilever erection of steel truss bridges. Wang et al. propose a method involving the construction of a pier abutment, erection of steel trusses, and the use of adjusting devices for accurate pier-loading and closure. Zhu et al. present a multi-width juxtaposed double-cantilever bridge girder erection machine that allows for simultaneous erection of multiple frames and reduces via hole bending moment. Gao et al. describe a cantilever assembling construction method for multi-main truss steel truss structures, ensuring alignment of the bridge deck. Cui et al. propose an erection method for cable-stayed bridge steel truss girders, which improves construction efficiency and reduces project cost. Chen et al. introduce a cantilever light steel pedestrian truss bridge connecting system based on a stay cable structure, enhancing stability, bearing capacity, and pedestrian comfort.
What are flow-induced energy harvesting devices?3 answersFlow-induced energy harvesting devices are devices that convert the energy from fluid flow into usable electric energy. These devices utilize various mechanisms such as piezoelectric transducers, carbon-based materials, and buckled sheets to harvest energy from flow-induced vibrations or the redistribution of charges at the liquid/solid interface. They can be used in applications such as water flow or evaporation energy harvesting, as well as in the development of Internet of Things devices. However, there are still challenges in this field, including the need for better handling of the multi-physics coupling problem and improving the robustness of the energy harvesters. Future development in this direction may involve the use of machine-learning approaches, metamaterials, and advanced interface circuits.
What is Flow Induced Vibration?5 answersFlow-induced vibration refers to the structural and mechanical vibration of objects immersed in or conveying fluid. It occurs when the dynamic forces of the fluid interact with the inertial, damping, and elastic forces of the structures. These vibrations can be observed in various engineering systems and can lead to instabilities and damage. Flow-induced vibrations can be caused by factors such as multiphase flow and momentum fluctuation, and they are a complex phenomenon that is still not fully understood. Researchers have been studying flow-induced vibrations to develop a deeper understanding of their effects and to find ways to mitigate them. Flow-induced vibration energy harvesters have also been proposed as a means of converting the energy from flow-induced vibrations into usable energy. Overall, flow-induced vibration is an important phenomenon in fluid-structure interactions that has implications for various engineering applications.
Cause of Flow Induced Vibration?5 answersFlow-induced vibration (FIV) is the structural and mechanical vibration of structures immersed in or conveying fluid. Vibration of nuclear power plant components can cause fretting wear and fatigue that can eventually lead to component failure. The current work investigates flow-induced vibrations of piping structures with flow restricting orifices due to separated two-phase flow. Structural vibrations caused by a flowing fluid can occur when a structure is exposed to a flowing fluid. The flow-induced vibrations of a circular cylinder, free to oscillate in the cross-flow direction and subjected to a forced rotation about its axis, are analysed by means of two- and three-dimensional numerical simulations.
What are the 4 different flow induced vibrations mechanisms?3 answersFour different flow-induced vibration mechanisms have been identified in the abstracts. These mechanisms include instability-induced vortex-formation processes, movement-induced wake and shear-layer breathing modules, fluidelastic instability, and periodic wake shedding.These mechanisms are responsible for the streamwise vibrations observed in various cylindrical and axisymmetric bodies, as well as plates with flow underneath.The excitation mechanisms in two-phase flow-induced vibrations include fluidelastic instability, phase-change noise, random excitation, and periodic wake shedding.These mechanisms can induce small-amplitude subcritical oscillations and large-amplitude dynamic instabilities in components subjected to two-phase flow.

See what other people are reading

What is the theory about feedback of communication campaign?
5 answers
What is the theory about feedback of communication campaign?
5 answers
What is hexahedral mesh in abaqus?
4 answers
What is the historical significance of linear equation systems in education?
4 answers
Linear equation systems hold historical significance in education by providing insights into the genesis of mathematical ideas, shaping instructional design, and enhancing learning experiences. Historical analyses reveal how contexts necessitate mathematical constructs, how tools influence idea development, and how students comprehend concepts. Incorporating aspects of Elementary Number Theory and Linear Diophantine Equations from mathematical history enriches educational strategies, emphasizing the importance of understanding mathematical concepts. Utilizing technology like the Linear Equation Game as a learning medium enhances student engagement and motivation in mathematics education, aligning with modern teaching methodologies. Studies on linear systems among engineering students highlight the challenges in conceptual understanding, problem-solving, and interpretation, emphasizing the need for effective educational approaches. By introducing linear systems through problem-solving methods without matrices or determinants, historical Chinese mathematical techniques offer alternative educational pathways.
A pure tensile load on a whole bone is likely to cause a _____________________ fracture?
4 answers
A pure tensile load on a whole bone is likely to cause a fragile fracture, which is a manifestation of fatigue damage resulting from repetitive loading conditions. When bones are subjected to tensile loading, damage accumulates, affecting their mechanical behavior under different loading modes. Studies have shown that tensile strength decreases with age, indicating a reduction in bone's ability to withstand tensile loads as individuals grow older. Additionally, finite element modeling incorporating continuum damage mechanics has been used to predict fatigue damage and failure in whole bones, highlighting the importance of considering the cumulative and nonlinear effects of fatigue damage in predicting fractures. Therefore, a pure tensile load can lead to a fragile fracture due to the accumulation of damage over time, especially in aging bones.
What is the scientific lock associated with developing adaptable model predictive controllers?
5 answers
The scientific challenge associated with developing adaptable model predictive controllers lies in effectively managing computational complexity without compromising stability and feasibility guarantees. Traditional approaches often simplify models or shorten prediction horizons to handle complexity, risking instability. To address this, researchers have proposed adaptive strategies that adjust control horizons based on dynamic programming inequalities, ensuring stability and suboptimality guarantees. Additionally, an adaptive model-predictive control (MPC) for systems with uncertainties utilizes min-max optimization principles and parameter estimation to maintain feasibility and stability, demonstrated through theoretical proofs and simulations. Furthermore, a novel adaptive MPC variant integrates Bayesian optimization and density ratio estimation to automatically estimate control and model parameters, enhancing robustness in the face of uncertainties and noise.
What is the free energy hypothesis?
5 answers
The Free Energy Principle (FEP) posits that any self-organizing system, separated statistically from its environment and maintaining a non-equilibrium state, minimizes variational free energy to perform Bayesian inference about its surroundings. This principle, rooted in stochastic thermodynamics, suggests that systems minimize prediction errors and maximize model evidence, acting as observers capable of assigning meaning to observations. While the FEP has been applied in neuroscience and is gaining traction in machine learning, its application to simple linear systems has highlighted challenges in finding systems meeting its stringent assumptions, such as the need for a Markov blanket and solenoidal flows. The FEP's implications extend to quantum information theory, suggesting that biological systems may leverage quantum coherence for computation and communication.
What is the rising velocity of micro and nano bubble in water?
5 answers
The rising velocity of micro-nano bubbles in water is a critical factor influenced by various forces and characteristics. Micro-nano bubbles exhibit slow rising speeds due to their small diameters, which range between 100nm and 300nm. These bubbles have lower rising velocities compared to macrobubbles, attributed to their larger interfacial area, higher inner pressure, and density. When analyzing the forces acting on bubbles in still water, it was found that for bubbles with a radius less than 500 μm and a rise distance larger than 0.1 m, the effects of added mass force and Basset force on the rise velocities can be neglected. Additionally, a micro-nano bubble generator with a lift of 40-100m was designed to enhance efficiency and energy conservation, indicating improved device running efficiency.
What is linear equation?
5 answers
A linear equation is a fundamental algebraic concept crucial from junior high school to university levels. It is an equation involving constants and variables raised to the power of 1, typically in the form \(ax + by = c\). Linear equations are prevalent in mathematics education, with technology now being utilized to enhance learning experiences, such as through the creation of the "Linear Equation Game" for Android devices. These equations are essential in various fields, as they serve as the basis for solving numerical problems, including in numerical methods where linear algebraic equations play a central role. Understanding linear equations is vital for students to progress to more advanced mathematical topics, making it a key component of the curriculum across educational levels.
What does force-displacement curve obtained from low velocity impact test refer to?
5 answers
The force-displacement curve obtained from a low-velocity impact test refers to the relationship between the applied force and the resulting displacement during impact testing. This curve is crucial in understanding the behavior of structures subjected to low-velocity impacts, such as composite laminates and aluminum plates, as it provides insights into impact resistance, damage tolerance, and structural integrity. The curve helps in analyzing the transient impact force, local deformation at the point of contact, and the structural response of the target material. By studying this curve, researchers can assess the material's ability to withstand impact loads, predict failure modes, and optimize designs to enhance impact performance.
How has the Spearman correlation coefficient been applied in previous studies to examine the relationship?
5 answers
The Spearman correlation coefficient has been utilized in various studies to explore relationships. One study focused on the correlation between SNI ISO Quality Management System Standards and Industrial Property Rights in Indonesia, revealing significant values for certain QMS standards impacting innovation. Another research investigated the relationship between monthly rainfall and temperature in Padang City, finding a weak correlation of only 9%. Additionally, a study emphasized the importance of a population model in guiding simulation studies on the Spearman rank correlation, highlighting misconceptions in the literature. Furthermore, a study proposed using Spearman correlation to identify the true configuration in a block-oriented structure with linear filters and a nonlinearity, showing improved time efficiency in determining poles and zeros.