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Relevant bibliographies by topics / Flying shear

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Dissertations / Theses
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Academic literature on the topic 'Flying shear'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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Journal articles on the topic "Flying shear"

1

Song, Jin Chun, Chang Zhou Wang, and Dong Xu. "Dynamic Simulation and Control Strategy of Centrifugal Flying Shear." Applied Mechanics and Materials 16-19 (October 2009): 278–82. http://dx.doi.org/10.4028/www.scientific.net/amm.16-19.278.

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Centrifugal Flying Shear is one of the most advanced equipments, which is widely used in tandem mill production lines because of its simple structure and high shearing precision. In this paper, the working principle of the centrifugal flying shear was introduced; the three-dimensional model of the centrifugal flying shear was established; the structural analysis and the dynamic simulation of the flying shear, with the movement rule and trajectory, were made based on MATLAB/SimMechanics and Solidworks/COSMOS Motion; and the control strategy of realizing scale shearing was proposed. The results obtained provide theoretical basis for design of the electronic control system, and facilitate further analysis of the shearing process and parameter optimization design of similar flying shears.

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Peric, N., and I. Petrovic. "Flying shear control system." IEEE Transactions on Industry Applications 26, no. 6 (1990): 1049–56. http://dx.doi.org/10.1109/28.62386.

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Chen, Tao, Ya Ping Hu, and Jing Peng Zhu. "Solid Modeling and Optimization Design of Crank Rocking Flying Shear." Applied Mechanics and Materials 608-609 (October 2014): 7–13. http://dx.doi.org/10.4028/www.scientific.net/amm.608-609.7.

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Flying shear is the equipment that steel enterprises make shearing process on metal preform body for further processing. Crank flying shear has the advantages of high efficiency and good shearing quality, which makes it widely applied. The paper analyzes and studies crank rocking flying shear evolved from IHI rocking shear. And the paper makes kinetic analysis on crank rocking flying shear, applies Solid works software to make three-dimensional modeling, assembly and animation of working process on crank rocking flying shear, and makes optimized analysis and design on spare parts of flying shear combined with kinetic analysis results.

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Li, Yu Gui, Quan Ye, Gao Ping Wang, and Fei Fan. "The Analyze of Shear Force Calculation Model of Drum Type Linear Blade Flying Shear." Advanced Materials Research 503-504 (April 2012): 785–89. http://dx.doi.org/10.4028/www.scientific.net/amr.503-504.785.

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In this paper, the shear force in the shearing process of the drum type linear blade flying shear is done. Two different approaches were taken to establish the shear force formula, and then the finite element simulation. The comparison results of the calculated values and simulated values can be seen that as the thickness increases, the maximum shear force calculated by the pure shear force formula increases rapidly, the shear force calculated by the energy release rate formula is relatively small, and the finite element simulation values and calculated values close to each other when the plate thickness is small. The derived formula in this paper not only can be applied to complex engineering problems, but also has provided a theoretical basis for drum type linear blade flying shears on the shear force calculations and equipment design.

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Xia, Jun Yong, Wen Hong Ding, and Zhang Yi Li. "Calculation of Cutting Force for Drum Type Arc Flying Shear." Advanced Materials Research 145 (October 2010): 434–42. http://dx.doi.org/10.4028/www.scientific.net/amr.145.434.

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Taking drum type flying shear as the subject, this paper firstly analyzes the position relation between shear blade and strip. Then it deduces the formula for calculating contacting arc length between shear blade and strip, formula for calculating blade inclined angle and formula for calculating blade gap. Then, cutting force of drum arc flying shear is calculated with the formula, which was used for calculating cutting force of slanting blade. Program is made with help of MATLAB software to realized parameterized design of drum type flying shear.

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Wang, Jiun-Yaw, Mao-Lin Chen, and Ching-Long Shih. "Generalized Predictive Control in Flying Shear Equipment." Journal of Advanced Computational Intelligence and Intelligent Informatics 11, no. 9 (November 20, 2007): 1144–48. http://dx.doi.org/10.20965/jaciii.2007.p1144.

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To develop and evaluate improved on-line flying-shear equipment control tasks, we introduces a Generalized Predictive Control (GPC) PID controller for positioning control of a flying-shear cutter. After successful trials and excellent regulation results, the GPC-based PID control algorithm with constraints is proved to be very robust.

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Shi, Jia Lian, Chang Qi Zhu, and Ming Zhao. "The Analysis of the Fly Shear Head Motion Track." Advanced Materials Research 605-607 (December 2012): 110–13. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.110.

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Study the equation of motion of cut head on flying head, and get the trajectory curve.According to the analysis about trajectory curve,build a baffle on the bell mouth behind the guide groove of flying shear , and determine the position of the baffle, solve the problem that steel head often inserting into the guide groove behind flying shear, which affect the process of steel inserting into the following mill group, and even cause run steel accident.

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Zhang, De Li, and Lai Shui Zhou. "The Track Motion Control of the Flying Shear Based on Quintic Spline Curve." Advanced Materials Research 468-471 (February 2012): 2613–19. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.2613.

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If the acceleration and deceleration of the flying shear track motion is constant, the acceleration and jerk of the tracking algorithm are not continuous, these result in a mutation of the force on moving parts and a great impact on the abrasion and service life of the equipment. Moreover, these affect the following effect of the servo system, make the cutting precision decreased. To improve the shear precision and cross section quality, an algorithm of the synchronous motion tracking of the flying shear is proposed. This algorithm directly uses the quintic spline curve profile to track the strip feed without any cam profile table. The quintic spline curve trajectory of the flying shear can make the velocity and acceleration of the blade rotation movement smooth. According to the length that user inputs, the control system uses iteration method to calculate the initial waiting length of the feed to carry out long cutting or short cutting automatically. Nonlinear synchronous movement is carried out to synchronize the horizontal speed of the flying shear with the feed speed of the strip on the cutting zone, which ensures the high-precision cutting length and smooth cutting cross section.

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Luo, Bowen, Chunming Xu, Chao Xu, and Qiang Yin. "Modal analysis of flying shear crankshaft system architecture." International Journal of Wireless and Mobile Computing 17, no. 4 (2019): 393. http://dx.doi.org/10.1504/ijwmc.2019.10024346.

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Xu, Chunming, Qiang Yin, Bowen Luo, and Chao Xu. "Modal analysis of flying shear crankshaft system architecture." International Journal of Wireless and Mobile Computing 17, no. 4 (2019): 393. http://dx.doi.org/10.1504/ijwmc.2019.103118.

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Dissertations / Theses on the topic "Flying shear"

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Merz, Jürgen. "Analytische Modellierung von Bandscheren mit Mathcad." Universitätsbibliothek Chemnitz, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-114497.

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Wang, Yu-Ren, and 王昱人. "Developing of Motion Controller for Flying Shear Machines." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/7p49tx.

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碩士
國立臺北科技大學
機電整合研究所
100
The flying shear machines are commonly used in manufacturing automation. Similarity mechanisms are also used in continuous processes, such as automatic filling machines. The purpose of this research is focused on this kind of mechanism, to analyze and plan its motion, and then to develop a motion controller for industries. At beginning, the relationship between rotary angle and feeding of cutting zone is established. Using the boundary conditions and desired cutting length, a 5th order polynomial is formulated to fit the non-cutting zone. Thus, its position, speed and acceleration are continuous with cutting zone. In the implementation, motion type PLC is selected as the controller. First we write a MATLAB program to calculate the relationship between feed and cutting wheel’s position, and then the calculated results of the program is downloaded to PLC and electronic CAM. To prove the method, various cutting lengths, radius of flying wheel and work angles, the controller are capable to finish the settings and thus have reached the goal that we hope as proposed. In addition, our research can make many rollers to work with feed at the same time. Thus, it would reduce the expenditure of the industries.

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HUEI, NG SHIE, and 黃詩暉. "FPGA-Realization of a Flying Shear Motion Controller." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/n842ht.

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碩士
南臺科技大學
電機工程系
107
Based on Field Programmable Logic Gate Array(FPGA), an acceleration and deceleration motion control chip with flying shears characteristics is developed to the synchronous cutting machine in this thesis. First, the architecture and the characteristic of the flying shears motion are introducted, and the algorithm of the flying shears motion trajectory and motion parameters are derived. To fastly confirm its correctness and functionality, the above algothrim will be coded and simulated in MATLAB. Furthermore, the proved flying shears motion trajectory Intelligent Property(IP) and motion parameter IP will be transferred to the hardware language to describe its circuit behavior, then it will be downloaded to FPGA for an experimental test. Due to FPGA has the advantage of the parallel processing capability, the fast calculation and the hardware/software co-design. Therefore it is very suitable for the development of the flying shears motion chip. In addition, this FPGA can also be embedded with a Nios II processor to build-up a System on a Programmable Chip(SoPC) environment. Under this environment, it has two modules in FPGA. The first module is a Nios II processor. It performs the functions of the transmission and receiving of the actual position, theoretical position, actual speed, theoretical speed and motion parameters of the active and slave axes. In the second module, it implements various digital hardware circuits such as the active axis’s motion controller, the flying shear parameter calculation IP, the flying shear motion trajectory IP, the uniform pulse generating component IP and the speed estimation in FPGA chip. Finally, the completed FPGA-based flying shears motion IC will be tested in a real machine. Except experimental data results are verified its effectiveness and correctness, a film is also presented its functionality.

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Liang, Yung-Sung, and 梁永松. "The Study of Improvement for Constant Torque Flying Shear Control Process." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/21199565178330899296.

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碩士
國立高雄應用科技大學
電機工程系
98
The Flying Shear is one of the most commonly used cutting tools for steel rolling operation. It is used for cutting metal strips that come from the rolling mill at full speed in various custom-length sections. The increasing need to save energy and minimizes scrap together with requirement on the accuracy and quality of cutting operations in continuous rolling mills have necessitated that development of a new concept of flying shear control. The concept of flying shear control discussed in this paper is based on cascade control of angular speed and positionof a servo motor drive. Theoretical considerations are supported by simulation and experimental results. The simulation results show the performance of proposed flying shear control system is as expected.

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Chiang, Chih-Chien, and 江志堅. "Integration of Servo Motors, SSCNET, and Ethernet to realize the Remote Monitoring/Control System for Flying Shear Procedures." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/68506591275216176705.

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碩士
國立交通大學
電機學院電機與控制學程
103
This study has successfully integrated the programmable logic controller (PLC), servo motors, and a Mitsubishi SSCNET Ⅲ/H Interface axis card for the flying shear procedures. By connecting the PLC, Ethernet, and the OLE for process control (OPC) server network with a remote computer, information of servo motors can be efficiently transmitted to the remote computer under the supervisory control and data acquisition (SCADA) system with on-line monitoring and control to present the motor status in real time. The present experiments on servo motors were tested under loading to tune both the position-loop gain and the speed-loop gain. Results indicate that increasing the positional and velocity control gains can improve motion accuracy measured from the developed SCADA system. Finally, after applying the electronic cam function in the SSCNET Ⅲ/H Interface card, experimental results indicate that the developed system renders satisfactory performance of the flying shear procedures. The remote control/monitoring structure presented in this thesis can be systematically extended to other industrial applications. Experimental results show that the cutting length error in the flying shear control system leads to the maximum 0.0089mm which ideally meets the cutting process accuracy with 0.1mm.

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Books on the topic "Flying shear"

1

Silversides, C. R. Broadaxe to flying shear: The mechanization of forest harvesting east of the Rockies. Ottawa, Canada: National Museum of Science and Technology, 1997.

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Book chapters on the topic "Flying shear"

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Huang, Hongbo, Qintao Guo, Mingli Yu, Yanhe Tao, Yelan Wang, and Ming Zhan. "Material Parameter Identification and Response Prediction of Shearing Process for Flying Shear Machine Based on Model Validation." In Model Validation and Uncertainty Quantification, Volume 3, 209–24. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74793-4_26.

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Shroff, Gautam. "Correct." In The Intelligent Web. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199646715.003.0011.

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Last summer I took my family on a driving holiday in the American south-western desert covering many national parks. While driving along some of the long tracts of razor-straight highways, such as between Las Vegas and St George, Utah, I often fought drowsiness, not because of lack of sleep, but from the sheer monotony. A familiar experience for many, no doubt. Hardly any conscious thought is needed during such drives. It must be one’s ‘System’, as per Kahneman, which is most certainly doing what ever work is needed. Nevertheless, sleep is not an option. In spite of all the marvellous features embedded in the modern car, the ability to drive itself is, sadly, still missing. The cruise control button helps a bit, allowing one’s feet torelax as the car’s speed remains on an even keel. But the eyes and mind must remain awake and alert. When, if ever, one wonders, will cars with a ‘drive’ button become as common as those with an automatic transmission? Is driving along a perfectly straight stretch of highway really that difficult? After all, we all know that a modern jetliner can fly on autopilot, allowing even a single pilot to read a novel while ‘flying’ the aircraft on a long transcontinental flight. In fact, the jetliner would fly itself perfectly even if the pilot dozed off for many minutes or even hours. We insist that at least one pilot be awake and alert only for our own peace of mind, so as to be able to adequately respond to any emergency situation that might arise. First of all, the ubiquitous autopilot is itself quite a complex piece of equipment. Even to get a plane to fly perfectly straight along a desired heading at a fixed altitude takes a lot of work. The reason, as you must have guessed, is that nature, in the guise of the air on which our jetliner rides, can be quite unpredictable. Wind speeds and directions change continuously, even ever so slightly, requiring constant adjustments to the plane’s engine power, ailerons, flaps, and rudder. In the absence of such adjustments, our jetliner would most certainly veer off course, or lose or gain speed, even dangerously enough to trigger a powered dive or a stall.

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Conference papers on the topic "Flying shear"

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MEYER, R., E. BARLAND, and B. DVORSCAK. "Flying a wind shear in the C-5." In 16th Atmospheric Flight Mechanics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1989. http://dx.doi.org/10.2514/6.1989-3360.

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Wang, Cuiting, Xin Wang, and Bin Zhang. "Design of the flying shear servo control system." In 2017 Chinese Automation Congress (CAC). IEEE, 2017. http://dx.doi.org/10.1109/cac.2017.8243034.

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Chen, Xiaoyan. "Cause Analysis and Treatment of Abnormal Shear in Head Cutting Flying Shear of Hot Rolling." In International Conference on Information System and Management Engineering. SCITEPRESS - Science and Technology Publications, 2015. http://dx.doi.org/10.5220/0006027103930396.

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Qi, Liu, Li Shuo, Wang Ying, Liang Kai, Li Baohua, Mo Huili, and Liu Jinran. "DESIGN OF FLYING SHEAR DEVICE AND ALGORITHM BASED ON MOTION CONTROL SYSTEM." In International Conference on New Materials and Intelligent Manufacturing (ICNMIM). Volkson Press, 2018. http://dx.doi.org/10.26480/icnmim.01.2018.257.259.

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Ng, Gary, Sorin Deleanu, Jean-Paul Prevost, and David Carpenter. "Improving the operation of a flying dividing shear by using Direct Torque Control." In 2017 International Conference on Modern Power Systems (MPS). IEEE, 2017. http://dx.doi.org/10.1109/mps.2017.7974419.

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Cui, Fuhao, Jinhong Hu, Yue Peng, Hui Li, Shengnan Shen, Jie Huang, and Jicai Hu. "The Influence of Temperature and Humidity on the ABS Contaminations." In ASME 2014 Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/isps2014-6981.

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In order to increase the areal recording density of hard disk drive beyond 1 Tb/in2, the flying height has to be reduced to several nanometers. At such a low flying height, particles and lube contaminations, which could lead to a transient vibration and flying height modulation in a hard disk drive, are becoming more and more serious. In this work, it studies the influence of temperature and humidity on the air flow pattern, velocity and shear stress distribution on the air bearing surface (ABS) of slider using a self-developed simulator. It first solves the generalized steady state Reynolds equation with slip boundary conditions. Then it solves the reduced Navier-Stokes (N-S) equation with slip boundary conditions to get the air velocity distribution, i.e., identify the air flow pattern on the ABS. The stagnation lines and areas of air flow are calculated to judge the contamination area. On the other hand, it calculates the air shear stress distribution on the ABS since the air shear stress is the main driving force for the lubricant and particles migration and contaminations. After that, the impact of the temperature and humidity on the air flow pattern is analyzed by applying the Sutherland equation and mixed gas viscosity calculation equation. The simulation results indicate that the impact of temperature and humidity on the air flow pattern is un-conspicuous. However, the peak velocity of the air flow, which contains no vapor, reduces almost 10%, and the peak air flow shear stress increases less than 1.5%, with the increase of operational temperature from 298.15 K to 343.15 K. In addition, the peak velocity of the air flow increasing almost 4%, and the peak air flow shear stress keeps almost same, with the increase of the operational mole fraction of vapor from 5% to 15%.

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Firmo, Thiago Martins, and Helder de Paula. "Analysis and Solution of the Luminosity Variations in a Steelmaking Industry Caused by the Operation of a Flying Shear." In 2020 IEEE Industry Applications Society Annual Meeting. IEEE, 2020. http://dx.doi.org/10.1109/ias44978.2020.9334752.

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Yamane, Masami, and Kyosuke Ono. "Study of Contact Bouncing Vibration of Flying Head Slider in Near-Contact Regime." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64263.

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We experimentally and analytically investigated detailed characteristics of the bouncing vibrations of a flying head slider in a near-contact regime. In the experiment, we found that the hysteresis of touch-down and take-off pressure and the rate of instability become small as the pitch angle increases. Moreover, we measured the 3-dimensional slider motion by using two laser Doppler vibrometers simultaneously and found that the bouncing vibration is a coupled vibration between translation and pitch with a small phase shift. These experimental features can be explained analytically if we consider strong shear force due to lubricant and small amount of microwaviness for the previous two-degrees of freedom slider model with nonlinear air bearing stiffness.

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Han, Jianyou, Yang Cao, and Penghao Li. "Dynamic Analysis of Slider Mechanisms With Consideration of Frictional Effect in the Slider." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-85685.

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This paper deals with dynamic analysis of three methods for the slider in mechanisms. Three methods are introduced under three conditions (the influence of friction force is considered, the slider’s center of mass is not coincide with the hinge point, the slider and its guide have rotation motion). The dynamic analyses of the crank slider mechanism and the flying shear mechanism are given as examples by a developed software based on Visual C++ environment, and application scope of the three methods is concluded at the end of the paper. These results are useful for analyzing and designing mechanisms with sliders, such as choosing suitable slider materials or actuators.

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Ovcharenko, Andrey, Tom Karis, and Jih-Ping Peng. "Correlation of Disk Topography Waves With Nanometer Scale Lubricant Moguls." In ASME 2017 Conference on Information Storage and Processing Systems collocated with the ASME 2017 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/isps2017-5401.

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Magnetic recording disk carbon overcoats are lubricated with nanometer thick films of perfluoropolyether lubricant. It is well-known that lubricant thickness redistribution takes place due to air shear stress oscillation at air bearing resonant frequencies and also due to shear stress oscillation induced by disk topography waves on test tracks. We extended this work to demonstrate correlation between surface topography and lubricant redistribution on whole disk surfaces. Lubricant moguls are shown to form over regions of the disk surface which have topography waves that are half the slider length, and the lubricant thickness peak is out of phase down track from the topography peak height. There is a critical relative humidity above 20% beyond which moguls are readily formed by the slider flying at 10 nm without thermal fly height control. The significance of the lubricant redistribution for drive magnetic performance has long been the subject of debate. These results demonstrate that lubricant thickness redistribution on the order of atomic diameters can degrade magnetic performance, and that the surface topography waves alone can degrade areal density by as much as 2%.

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