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Journal articles on the topic 'Fin actuation systems'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Yoo, Chung-Hee. "Active Control of Aeroelastic Vibrations for Electromechanical Missile Fin Actuation Systems." Journal of Guidance, Control, and Dynamics 40, no. 12 (2017): 3299–306. http://dx.doi.org/10.2514/1.g002821.

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2

Haq, Mazhar Ul, Zhao Gang, Zhuang Zhi Sun, and S. M. Aftab. "Torque Analysis of IPMC Actuated Fin of a Micro Fish like Device Using Two-Way Fluid Structure Interaction Approach." Journal of Biomimetics, Biomaterials and Biomedical Engineering 25 (October 2015): 25–38. http://dx.doi.org/10.4028/www.scientific.net/jbbbe.25.25.

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In this paper, a numerical simulation of three dimensional model of IPMC actuated fin of a fish like micro device is presented using two-way fluid structure interaction approach. The device is towed by the surface vessel through a tow cable. Fin is acting as dorsal fin of the fish to control depth of the device and also acts as a stabiliser against its roll motion. Fin's displacement disturbs water flow streamlines around it, as a result velocity and pressure profile of fluid's domain changes around the actuated fin. As fin's position continuously changes throughout its actuation cycle, this m

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3

Wiguna, Tedy, Seok Heo, Hoon Cheol Park, and Nam Seo Goo. "Mechanical Design of Biomimetic Fish Robot Using LIPCA as Artificial Muscle." Key Engineering Materials 326-328 (December 2006): 1443–46. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.1443.

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This paper presents a mechanical design of biomimetic fish robot using the Lightweight Piezo-Composite Actuator (LIPCA). We have designed a mechanism for converting actuation of the LIPCA into caudal fin movement. The linkage mechanism consists of rack-pinion and four-bar linkage systems. Two kinds of caudal fins are fabricated such that the shapes resemble subcarangiform and ostraciiform caudal fin shape, respectively, and then attached to the linkage system. The swimming test using 300 Vpp input with 1 Hz to 3 Hz frequency was conducted to investigate the effect of tail beat frequency and sh

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4

Haq, Mazhar Ul, Zhao Gang, Zhuang Zhi Sun, and S. M. Aftab. "Force Analysis of IPMC Actuated Fin and Wing Assembly of a Micro Scanning Device through Two-Way Fluid Structure Interaction Approach." International Journal of Engineering Research in Africa 21 (December 2015): 19–32. http://dx.doi.org/10.4028/www.scientific.net/jera.21.19.

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In this paper, a methodology is presented to perform force analysis of wing and fin assembly of a micro fish like device through strongly coupled two-way fluid structure interaction approach. The scanning device operates underwater and is towed by a surface vessel through a tow cable. Device fins are actuated by ionic polymer metal composite (IPMC) actuators, an EAP actuator. Fins act as riser, depressor and stabiliser against roll motion of the device. During tow, wing and fin assembly of the device come under hydrodynamic forces. These forces are influenced by fin displacement under IPMC act

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5

Nitzsche, F., D. G. Zimcik, T. G. Ryall, R. W. Moses, and D. A. Henderson. "Closed-Loop Control Tests for Vertical Fin Buffeting Alleviation Using Strain Actuation." Journal of Guidance, Control, and Dynamics 24, no. 4 (2001): 855–57. http://dx.doi.org/10.2514/2.4788.

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6

Xie, Ou, Qixin Zhu, Lin Shen, and Kun Ren. "Kinematic study on a self-propelled bionic underwater robot with undulation and jet propulsion modes." Robotica 36, no. 11 (2018): 1613–26. http://dx.doi.org/10.1017/s0263574718000590.

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SUMMARYThis paper proposed a novel type of bionic underwater robot (BUR). The undulation and jet propulsion modes on the self-propelled BUR were combined, and the kinematic characteristics of the two propulsion modes were thoroughly compared. First, the prototype and swimming strategy of the BUR were presented, and a dynamic model of the BUR was established based on several assumptions. Then, a central pattern generator (CPG) model allowing free adjustment of frequency and amplitude was employed to achieve the undulation propulsion of carangiform fish and the jet propulsion of jellyfish. Also,

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Karaağaçlı, Taylan, and H. Nevzat Özgüven. "Experimental Identification of Backbone Curves of Strongly Nonlinear Systems by Using Response-Controlled Stepped-Sine Testing (RCT)." Vibration 3, no. 3 (2020): 266–80. http://dx.doi.org/10.3390/vibration3030019.

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In stepped-sine testing of strongly nonlinear structures with the classical force-control strategy, corrective force perturbations of a standard controller used to capture the reference signal in the proximity of turning points of frequency response curves may often lead to a premature jump before reaching the actual resonance peak. Accordingly, a classical force-control approach is not suitable to identify backbone curves of strongly nonlinear structures. This paper shows that currently available commercial modal test equipment can accurately identify backbone curves of strongly nonlinear str

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8

Xie, Ou, Boquan Li, and Qin Yan. "Computational and experimental study on dynamics behavior of a bionic underwater robot with multi-flexible caudal fins." Industrial Robot: An International Journal 45, no. 2 (2018): 267–74. http://dx.doi.org/10.1108/ir-06-2017-0122.

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Purpose This paper aims to develop a novel type of bionic underwater robot (BUR) with multi-flexible caudal fins. With the coordinate movement of multi-caudal fins, BUR will combine the undulation propulsion mode of carangiform fish and jet propulsion mode of jellyfish together organically. The use of Computational Fluid Dynamics (CFD) and experimental method helps to reveal the effect of caudal fin stiffness and motion parameters on its hydrodynamic forces. Design/methodology/approach First, the prototype of BUR was given by mimicking the shape and propulsion mechanism of both carangiform fis

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9

Muralidharan, M., and I. A. Palani. "Development of Subcarangiform Bionic Robotic Fish Propelled by Shape Memory Alloy Actuators." Defence Science Journal 71, no. 1 (2021): 94–101. http://dx.doi.org/10.14429/dsj.71.15777.

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In this paper, a shape memory alloy (SMA) actuated subcarangiform robotic fish has been demonstrated using a spring based propulsion mechanism. The bionic robotic fish developed using SMA spring actuators and light weight 3D printed components can be employed for under water applications. The proposed SMA spring-based design without conventional motor and other rotary actuators was able to achieve two-way shape memory effect and has reproduced the subcarangiform locomotion pattern. The positional kinematic model has been developed and the dynamics of the proposed mechanism were analysed and si

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10

Curet, Oscar M., Neelesh A. Patankar, George V. Lauder, and Malcolm A. MacIver. "Aquatic manoeuvering with counter-propagating waves: a novel locomotive strategy." Journal of The Royal Society Interface 8, no. 60 (2010): 1041–50. http://dx.doi.org/10.1098/rsif.2010.0493.

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Many aquatic organisms swim by means of an undulating fin. These undulations often form a single wave travelling from one end of the fin to the other. However, when these aquatic animals are holding station or hovering, there is often a travelling wave from the head to the tail, and another moving from the tail to the head, meeting in the middle of the fin. Our study uses a biomimetic fish robot and computational fluid dynamics on a model of a real fish to uncover the mechanics of these inward counter-propagating waves. In addition, we compare the flow structure and upward force generated by i

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11

Low, Kin Huat, Shuxiang Guo, Xinyan Deng, et al. "Special Issue on Focused Areas and Future Trends of Bio-Inspired Robots “Analysis, Control, and Design for Bio-Inspired Robotics”." Journal of Robotics and Mechatronics 24, no. 4 (2012): 559–60. http://dx.doi.org/10.20965/jrm.2012.p0559.

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The science of biomimetics is about “the abstraction of good design from nature.” The goal of this scientific field is to identify specific desirable features in the biological systems and apply them to the design of new products or systems. Engineers, scientists, entrepreneurs, and business people are increasingly turning towards nature for design inspiration. The combination of biological principles, mechanical engineering, and robotics has opened entirely new areas and possibilities. On the other hand, we can see that nature can serve as an important source of inspiration to foster innovati

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12

Mani, Smitha, Sahjendra N. Singh, Surya Kiran Parimi, and Woosoon Yim. "Adaptive Servoregulation of a Projectile Fin Using Piezoelectric Actuator." Journal of Dynamic Systems, Measurement, and Control 129, no. 1 (2006): 100–104. http://dx.doi.org/10.1115/1.2397159.

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This brief paper treats the question of adaptive control of a projectile fin using a piezoelectric actuator. The hollow projectile fin is rigid, within which a flexible cantilever beam with a piezoelectric active layer is mounted. The model of the fin-beam system includes the aerodynamic moment, which is a function of angle of attack of the projectile. The rotation angle of the fin is controlled by deforming the flexible beam, which is hinged at the tip of the rigid fin. An adaptive servoregulator is designed for the control of the fin angle using the fin angle and its derivative for feedback.

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13

Lu, Jin, Zhigang Wu, and Chao Yang. "High-Fidelity Fin–Actuator System Modeling and Aeroelastic Analysis Considering Friction Effect." Applied Sciences 11, no. 7 (2021): 3057. http://dx.doi.org/10.3390/app11073057.

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Both the dynamic characteristics and structural nonlinearities of an actuator will affect the flutter boundary of a fin–actuator system. The actuator models used in past research are not universal, the accuracy is difficult to guarantee, and the consideration of nonlinearity is not adequate. Based on modularization, a high-fidelity modeling method for an actuator is proposed in this paper. This model considers both freeplay and friction, which is easy to expand. It can be directly used to analyze actuator characteristics and perform aeroelastic analysis of fin–actuator systems. Friction can im

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14

Wu, S. Z., D. N. Wormley, D. Rowell, and P. Griffith. "Boiler Implosion Control in Fossil Fuel Power Plants." Journal of Dynamic Systems, Measurement, and Control 107, no. 4 (1985): 267–69. http://dx.doi.org/10.1115/1.3140734.

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An evaluation of systems for control of fossil fuel power plant boiler and stack implosions has been performed using computer simulation techniques described in a companion paper. The simulations have shown that forced and induced draft fan control systems and induced draft fan bypass systems reduce the furnace pressure excursions significantly following a main fuel trip. The limitations of these systems are associated with actuator range and response time and stack pressure excursions during control actions. Preliminary study suggests that an alternative control solution may be achieved by di

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15

Noh, Jaeho, Jaeyong Lee, Woosung Yang, and Sungon Lee. "Design of a Concentrically Stacked Modular Actuator with Forced Air Cooling for Multi-DOF Robotic Systems." Energies 11, no. 11 (2018): 2947. http://dx.doi.org/10.3390/en11112947.

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This paper proposes a concentrically stacked modular (CoSMo) actuator with rotary electric motors to implement multi-degree-of-freedom (multi-DOF) robotic systems with high power densities. The CoSMo actuator shows a novel design concept, which enables the actuator module with an integrated radiator to be combined in series and cooled by a single fan. This unique system has elevated thermal characteristics owing to the heatsink sharing effect. This enables the module to carry higher current by decreasing the temperature-rise rate. Also, the proposed design concept reduces the number of compone

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16

Pham, Van Anh, Tan Tien Nguyen, Byung Ryong Lee, and Tuong Quan Vo. "Dynamic Analysis of a Robotic Fish Propelled by Flexible Folding Pectoral Fins." Robotica 38, no. 4 (2019): 699–718. http://dx.doi.org/10.1017/s0263574719000997.

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SUMMARYBiological fish can create high forward swimming speed due to change of thrust/drag area of pectoral fins between power stroke and recovery stroke in rowing mode. In this paper, we proposed a novel type of folding pectoral fins for the fish robot, which provides a simple approach in generating effective thrust only through one degree of freedom of fin actuator. Its structure consists of two elemental fin panels for each pectoral fin that connects to a hinge base through the flexible joints. The Morison force model is adopted to discover the relationship of the dynamic interaction betwee

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17

Lee, Sang Yeal, and Hyung Suck Cho. "A fuzzy controller for an electro-hydraulic fin actuator using phase plane method." Control Engineering Practice 11, no. 6 (2003): 697–708. http://dx.doi.org/10.1016/s0967-0661(02)00179-x.

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18

Zhu, Chenglong, Chenxi Li, Xinyi Chen, Kanjian Zhang, Xin Xin, and Haikun Wei. "Event-Triggered Adaptive Fault Tolerant Control for a Class of Uncertain Nonlinear Systems." Entropy 22, no. 6 (2020): 598. http://dx.doi.org/10.3390/e22060598.

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This paper considers an adaptive fault-tolerant control problem for a class of uncertain strict feedback nonlinear systems, in which the actuator has an unknown drift fault and the loss of effectiveness fault. Based on the event-triggered theory, the adaptive backstepping technique, and Lyapunov theory, a novel fault-tolerant control strategy is presented. It is shown that an appropriate comprise between the control performance and the sensor data real-time transmission consumption is made, and the fault-tolerant tracking control problem of the strict feedback nonlinear system with uncertain a

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19

Alanis, Alma Y., Jorge D. Rios, Nancy Arana-Daniel, and Carlos Lopez-Franco. "Real-time neural control of all-terrain tracked robots with unknown dynamics and network communication delays." Ingeniería Investigación y Tecnología 21, no. 3 (2020): 1–12. http://dx.doi.org/10.22201/fi.25940732e.2020.21.3.026.

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This work focuses on the design of an intelligent controller that is a considerably large challenge for cyber-physical systems. The proposed controller can deal with unknown dynamics, actuator saturation, unknown external and internal disturbances, unknown communication delays and packet losses. Such a controller is designed using a discrete-time approach based on inverse optimal control and a recurrent high-order neural network identifier. The applicability of the proposed scheme is shown through real-time results using a tracked robot platform controlled through a wireless network under diff

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20

Liu, Guojun, Zhiyong Qu, Xiaochu Liu, and Junwei Han. "Tracking performance improvements of an electrohydraulic Gough-Stewart platform using a fuzzy incremental controller." Industrial Robot: An International Journal 41, no. 2 (2014): 225–35. http://dx.doi.org/10.1108/ir-05-2013-355.

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Purpose – Sinusoidal signals are often used as the inputs of the six degree of freedom (DOF) motion simulator platforms. The purpose of this paper is to propose a fuzzy incremental controller (FIC) to improve sinusoidal signal tracking performances of an electrohydraulic Gough-Stewart platform (GSP). Design/methodology/approach – An FIC is proposed to control an electrohydraulic GSP without any model parameters. The FIC output can be self-organized by only using the hydraulic actuator position information. The control rules are determined by a systematic deterministic method. Findings – Experi

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21

He, Xiang-Dong, Sheng Liu, and Haruhiko H. Asada. "Modeling of Vapor Compression Cycles for Multivariable Feedback Control of HVAC Systems." Journal of Dynamic Systems, Measurement, and Control 119, no. 2 (1997): 183–91. http://dx.doi.org/10.1115/1.2801231.

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This paper presents a new lumped-parameter model for describing the dynamics of vapor compression cycles. In particular, the dynamics associated with the two heat exchangers, i.e., the evaporator and the condenser, are modeled based on a moving-interface approach by which the position of the two-phase/single-phase interface inside the one-dimensional heat exchanger can be properly predicted. This interface information has never been included in previous lumped-parameter models developed for control design purpose, although it is essential in predicting the refrigerant superheat or subcool valu

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22

Cvok, Ivan, Igor Ratković, and Joško Deur. "Optimisation of Control Input Allocation Maps for Electric Vehicle Heat Pump-based Cabin Heating Systems." Energies 13, no. 19 (2020): 5131. http://dx.doi.org/10.3390/en13195131.

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The heating, ventilation and air conditioning (HVAC) system negatively affects the electric vehicle (EV) driving range, especially under cold ambient conditions. Modern HVAC systems based on the vapour-compression cycle can be rearranged to operate in the heat pump mode to improve the overall system efficiency compared to conventional electrical/resistive heaters. Since such an HVAC system is typically equipped with multiple actuators (compressor, pumps, fans, valves), with the majority of them being controlled in open loop, an optimisation-based control input allocation is necessary to achiev

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23

Santos, Athila, Na Liu, and Muhyiddine Jradi. "AUSTRET: An Automated Step Response Testing Tool for Building Automation and Control Systems." Energies 14, no. 13 (2021): 3972. http://dx.doi.org/10.3390/en14133972.

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Building energy consumption is still one of the main contributions to global carbon emissions. With the overall digitalization in the building sector, building automation and control systems (BACS) are to play a more important and key role in improving the building sector performance. A well-designed BACS at the building design phase with a high level of control functionalities is not a guarantee for efficient building operation and successful control and management strategies in the operational phase. Thus, a systematic automated initial and retro-commissioning process is key to test the perf

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24

Anwar, Muddasar, Toufik Al Khawli, Irfan Hussain, Dongming Gan, and Federico Renda. "Modeling and prototyping of a soft closed-chain modular gripper." Industrial Robot: the international journal of robotics research and application 46, no. 1 (2019): 135–45. http://dx.doi.org/10.1108/ir-09-2018-0180.

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Purpose This paper aims to present a soft closed-chain modular gripper for robotic pick-and-place applications. The proposed biomimetic gripper design is inspired by the Fin Ray effect, derived from fish fins physiology. It is composed of three axisymmetric fingers, actuated with a single actuator. Each finger has a modular under-actuated closed-chain structure. The finger structure is compliant in contact normal direction, with stiff crossbeams reorienting to help the finger structure conform around objects. Design/methodology/approach Starting with the design and development of the proposed

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25

Pinto, Raquel, André Cardoso, Sara Ribeiro, et al. "Application of SU-8 photoresist as a multi-functional structural dielectric layer in FOWLP." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2017, DPC (2017): 1–19. http://dx.doi.org/10.4071/2017dpc-tp2_presentation3.

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Microelectromechanical Systems (MEMS) are a fast growing technology for sensor and actuator miniaturization finding more and more commercial opportunities by having an important role in the field of Internet of Things (IoT). On the same note, Fan-out Wafer Level Packaging (FOWLP), namely WLFO technology of NANIUM, which is based on Infineon/ Intel eWLB technology, is also finding further applications, not only due to its high performance, low cost, high flexibility, but also due to its versatility to allow the integration of different types of components in the same small form-factor package.

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26

Dzielski, John, and Andrew Kurdila. "A Benchmark Control Problem for Supercavitating Vehicles and an Initial Investigation of Solutions." Journal of Vibration and Control 9, no. 7 (2003): 791–804. http://dx.doi.org/10.1177/1077546303009007004.

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At very high speeds, underwater bodies develop cavitation bubbles at the trailing edges of sharp corners or from contours where adverse pressure gradients are sufficient to induce flow separation. Coupled with a properly designed cavitator at the nose of a vehicle, this natural cavitation can be augmented with gas to induce a cavity to cover nearly the entire body of the vehicle. The formation of the cavity results in a significant reduction in drag on the vehicle and these so-called high-speed supercavitating vehicles (HSSVs) naturally operate at speeds in excess of 75 m s-1. The first part o

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27

Jung, Ho Sang, Hoa Phung, Jae Hyeong Park, et al. "Development of a Small and Lightweight Missile Fin Control Actuation System Driven by Novel Dielectric Elastomer Actuators." IEEE/ASME Transactions on Mechatronics, 2021, 1. http://dx.doi.org/10.1109/tmech.2020.3014969.

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28

Jayanth, G. R., and C. H. Menq. "Design and Modeling of an Active Five-Axis Compliant Micromanipulator." Journal of Mechanisms and Robotics 6, no. 4 (2014). http://dx.doi.org/10.1115/1.4027947.

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This paper presents the design and modeling of an active five-axis compliant micromanipulator whose tip orientation can be independently controlled by large angles about two axes and the tip-position can be controlled in three dimensions. These features enable precise control of the contact point of the tip and the tip–sample interaction forces with three-dimensional nanoscale objects, including those features that are conventionally inaccessible. Control of the tip-motion is realized by means of electromagnetic actuation combined with a novel kinematic and structural design of the micromanipu

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29

Pan, Min, Chenggang Yuan, Beichen Ding, and Andrew Plummer. "Novel Integrated Active and Passive Control of Fluid-Borne Noise in Hydraulic Systems." Journal of Dynamic Systems, Measurement, and Control, January 16, 2021. http://dx.doi.org/10.1115/1.4049734.

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Abstract Fluid-borne noise (FBN) is a major contributor to structure-borne noise (SBN) and air-borne noise (ABN) in hydraulic fluid power systems and could lead to increased fatigue in system components. FBN is caused by the unsteady flow generated by pumps and motors and propagates through the system resulting in SBN and ABN. New hydraulic technologies such as digital switched hydraulic converters also generate unavoidable FBN. This article reports on a novel integrated FBN attenuation approach, which employs a hybrid control system by integrating an active feed forward noise attenuator with

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30

Wang, Jiqiang, Georgi Dimirovski, and Hong Yue. "Finite-Time Regulation of Two-Spool Turbofan Engines With One Shaft Speed Control." Journal of Dynamic Systems, Measurement, and Control 138, no. 8 (2016). http://dx.doi.org/10.1115/1.4033310.

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Nonlinear control of aircraft engines has attracted much attention in consideration of the inherent nonlinearity of the engine dynamics. Most of the nonlinear design techniques, however, require the information from the rotational speeds of both high-pressure compressor and fan. This is not desirable from engine health management perspective, and this paper proposes a single sensor measurement and single actuator control approach. The proposed method can provide fast regulation of engine speed in a finite-time in comparison with conventional infinite time stability. Important results are obtai

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31

van Rooyen, J. A., and D. G. Kröger. "Performance Trends of an Air-Cooled Steam Condenser Under Windy Conditions." Journal of Engineering for Gas Turbines and Power 130, no. 2 (2008). http://dx.doi.org/10.1115/1.2771567.

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Air-cooled steam condensers (ACSCs) are increasingly employed to reject heat in modern power plants. Unfortunately, these cooling systems become less effective under windy conditions and when ambient temperatures are high. A better understanding of the fundamental air flow patterns about and through such ACSCs is essential if their performance is to be improved under these conditions. The present numerical study models the air flow field about and through a particular ACSC. The performance of the fans is modeled with the aid of a novel numerical approach known as the “actuator disc model.” Dis

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32

Papadimitriou, Andreas, George Andrikopoulos, and George Nikolakopoulos. "On the Optimal Adhesion Control of a Vortex Climbing Robot." Journal of Intelligent & Robotic Systems 102, no. 3 (2021). http://dx.doi.org/10.1007/s10846-021-01420-3.

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AbstractThis article tackles the challenge of negative pressure adhesion control of a Vortex Robotic (VR) platform, which utilizes a modified Electric Ducted Fan (EDF)-based design for successfully adhering to surfaces of variable curvature. The resulting Vortex Actuation (VA) system is estimated through a switching Autoregressive-Moving-Average with eXternal input (ARMAX) identification, for accurately capturing the throttle to adhesion force relationship throughout its operating range. For safe attachment of the robot on a surface, the critical adhesion is modeled based on the geometrical pr

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Chuang, Wen-Hsien, Thomas Luger, Rainer K. Fettig, and Reza Ghodssi. "Characterization of Mechanical Properties of Silicon Nitride Thin Films for Space Applications." MRS Proceedings 782 (2003). http://dx.doi.org/10.1557/proc-782-a5.21.

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ABSTRACTMechanical properties of micro-electro-mechanical systems (MEMS) materials at cryogenic temperatures are investigated to extend MEMS devices into space applications. A helium-cooled measurement setup mimicking the outer space environment is developed and installed inside a focused-ion-beam (FIB) system. T-shape, low-stress LPCVD silicon nitride cantilevers suspended on a silicon substrate are fabricated as the test structures using bulk micromachining technique. A lead-zirconate-titanate (PZT) translator and a silicon diode are utilized as an actuator and a temperature sensor in the me

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