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Добірка наукової літератури з теми "Hydraulic engineering Linear programming"

Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 31 липня 2025

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Статті в журналах з теми "Hydraulic engineering Linear programming"

Qi, Qing Lan, and Shao Xiong Zhang. "Nonlinear Regression Analysis for Programming and Engineering Application." Advanced Materials Research 846-847 (November 2013): 1080–83. http://dx.doi.org/10.4028/www.scientific.net/amr.846-847.1080.

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Aiming at the calculating the flow of cutthroat flume in Hydraulic Engineering, the test data is processed through the nonlinear regression analysis program which is based on the principle of least square method. With 33 equations of various functions including linear, power function curve and exponential curve to be selected as the mathematical model, the regression analysis is taken through 33 equations. Comparing the regression coefficient from analysis, the optimal mathematical model is selected as the empirical formula, which has great significance in guiding the practical engineering.

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Han, Bin, and Hongyan Gao. "Linear Parameter-Varying Model Predictive Control for Hydraulic Wind Turbine." Actuators 11, no. 10 (2022): 292. http://dx.doi.org/10.3390/act11100292.

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Wind speed uncertainty and measurement noise affect the control effect in hydraulic wind turbine systems. This paper proposes a model predictive control (MPC) method with a dynamic Kalman filter (KF) based on a linear parameter-varying (LPV) model to address this problem. First of all, the LPV model for a nonlinear system of a hydraulic wind turbine is established using function substitution. Then, a LPV-based KF is introduced into the MPC to provide more precise estimated results and improve the anti-interference ability of the system. According to the current condition of the hydraulic wind

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Zhang, Ming Zhe, Wei Wang, Dong Ning Su, Kang Min Zhong, and Zhi Ming Sui. "Mechanical-Electronic-Hydraulic Integration: Light Load Linear Reciprocating Motion Device Having Variable Frequency, Displacement and Velocity." Advanced Materials Research 279 (July 2011): 377–81. http://dx.doi.org/10.4028/www.scientific.net/amr.279.377.

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The light load linear reciprocating motion device driven by a small-size pneumatic cylinder is most economical, but its velocity and location precision is not good. When substituting the drive for small-size hydraulic cylinder, the significant shortcoming is environmental pollution. If the motion is achieved through rolling screw-nut mechanism driven by stepping motor, the space layout is very inconvenient. A light load linear reciprocating motion device integrating mechanical, electronic and hydraulic technology is designed. In this device, the motion is achieved through short-stroke rolling

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Saad, João Carlos Cury, and Miguel A. Mariño. "DESIGN OF MICROIRRIGATION SYSTEMS IN SLOPING LANDS USING LINEAR PROGRAMMING." IRRIGA 7, no. 3 (2002): 214–25. http://dx.doi.org/10.15809/irriga.2002v7n3p214-225.

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DESIGN OF MICROIRRIGATION SYSTEMS IN SLOPING LANDSUSING LINEAR PROGRAMMING[1] João CarlosCury SaadDepartment of Rural Engineering, College of Agricultural Sciences, São Paulo State University, P.O. 237, CEP 18603-970, Botucatu, SP. E-mail: joaosaad@fca.unesp.brMiguel A. MariñoDepartment of Land, Air and Water Resources and Department of Civil & Environmental Engineering, University of California, Davis, CA 95616, USA. E-mail: mamarino@ucdavis.edu 1 Summary When the area to be irrigated has a high slope gradient in the manifold line direction, an option is to use a tappered pipeline to redu

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Błaszczyk, Jacek, Andrzej Karbowski, Kamil Krawczyk, Krzysztof Malinowski, and Alnoor Allidina. "Optimal Pump Scheduling for Large Scale Water Transmission System by Linear Programming." Journal of Telecommunications and Information Technology, no. 3 (September 30, 2012): 91–96. http://dx.doi.org/10.26636/jtit.2012.3.1283.

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Large scale potable water transmission system considered in this paper is the Toronto Water System, one of the largest potable water supply networks in North America. The main objective of the ongoing Transmission Operations Optimizer project consists in developing an advanced tool for providing such pumping schedules for 153 pumps, that all quantitative requirements with respect to the system operation are met, while the energy costs are minimized. We describe here a linear, so-called SimplifiedModel (SM), based on mass-balance equations, which is solved on week horizon and delivers boundary

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Malikov, Rauf Kh, Natig M. Abbasov, Mahluga S. Rahimova, and Alihikmat A. Ahmadov. "Formalization of the non-linear programming for the configuration of the heat exchange system in column apparatuses of the petrochemical industry with minimum costs." Nafta-Gaz 79, no. 12 (2023): 804–8. http://dx.doi.org/10.18668/ng.2023.12.06.

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For increasing the efficiency of heat transfer processes, the layer-by-layer concept of arrangement of various types of packings in column apparatuses is considered. The results of hydraulic tests of a dry and irrigated cell packing, as well as individual hydraulic tests of a mesh packing, are presented. Methods and algorithms for solving linear programming problems under “uncertainty” conditions were considered. However, in some areas of science it is often difficult or impossible to formalize the problem in an appropriate way and reduce it to a linear programming problem. In this paper, meth

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Pałka, Piotr, Marcin Malec, Przemysław Kaszyński, Jacek Kamiński, and Piotr Saługa. "District Heating System Optimisation: A Three-Phase Thermo-Hydraulic Linear Model." Energies 16, no. 8 (2023): 3316. http://dx.doi.org/10.3390/en16083316.

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Investments in the development of the district heating system require a thorough analysis of the technical, economic, and legal aspects. Regarding the technical and economic context, a mathematical model of the district heating system has been proposed. It optimizes both the technical and economic aspects of the function and development of a district heating system. To deal with non-linearities, the developed linear programming model is divided into three phases: flow, thermal, and pressure. Therein, non-linear dependencies are calculated between the linear optimization phases. This paper pres

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Creaco, Enrico, Feifei Zheng, and Giuseppe Pezzinga. "Minimum transport-driven algorithm for water distribution network partitioning." Journal of Water Supply: Research and Technology-Aqua 71, no. 1 (2021): 120–38. http://dx.doi.org/10.2166/aqua.2021.143.

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Abstract This paper presents a novel algorithm driven by the minimization of the transport function for the partitioning of water distribution networks (WDNs) into district metered areas (DMAs). The algorithm is based on the linear programming (LP) embedded inside a multi-objective genetic algorithm, which enables engineering criteria, such as the minimization of the boundary pipes and the maximization of the uniformity of DMAs, to be considered in the partitioning. Furthermore, the application of the algorithm on the dual network topology based on segments and valves guarantees that configura

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Al-Khayat, Rasha Hayder, Ameer A. Kadhim, Maher A. R. Sadiq Al-Baghdadi, and Muhannad Al-Waily. "Flow parameters effect on water hammer stability in hydraulic system by using state-space method." Open Engineering 12, no. 1 (2022): 215–26. http://dx.doi.org/10.1515/eng-2022-0014.

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Abstract The water hammer (WH) phenomenon is one of the most dangerous phenomena in hydraulic systems, especially pipelines, gates, and locks on these lines. There are many analytical solutions to deal with the WH phenomenon, including the treatment of friction losses, but most solutions use linear arithmetic operations, which depart from the actual situation of the WH phenomenon. Also, the methods currently used are most challenging and complex and give imprecise results to treat the mentioned phenomenon. In order to reach a state closer to the situation of losses and stability of the hydraul

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Zhang, Bin, Shuang Wang, Yuting Liu, and Huayong Yang. "Research on Trajectory Planning and Autodig of Hydraulic Excavator." Mathematical Problems in Engineering 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/7139858.

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As the advances in computer control technology keep emerging, robotic hydraulic excavator becomes imperative. It can improve excavation accuracy and greatly reduce the operator’s labor intensity. The 12-ton backhoe bucket excavator has been utilized in this research work where this type of excavator is commonly used in engineering work. The kinematics model of operation device (boom, arm, bucket, and swing) in excavator is established in both Denavit-Hartenberg coordinates for easy programming and geometric space for avoiding blind spot. The control approach is based on trajectory tracing meth

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Дисертації з теми "Hydraulic engineering Linear programming"

Shah, Aditya Arunkumar. "Combining mathematical programming and SysML for component sizing as applied to hydraulic systems." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33890.

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In this research, the focus is on improving a designer's capability to determine near-optimal sizes of components for a given system architecture. Component sizing is a hard problem to solve because of the presence of competing objectives, requirements from multiple disciplines, and the need for finding a solution quickly for the architecture being considered. In current approaches, designers rely on heuristics and iterate over the multiple objectives and requirements until a satisfactory solution is found. To improve on this state of practice, this research introduces advances in the followi

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Karamalis, Constantinos. "Data perturbation analyses for linear programming." Thesis, University of Ottawa (Canada), 1994. http://hdl.handle.net/10393/6709.

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This thesis focuses on several aspects of data perturbation for Linear Programming. Classical questions of degeneracy and post-optimal analysis are given a unified presentation, in a view of new interior point methods of linear programming. The performance of these methods is compared to the simplex algorithm; interior point methods are shown to alleviate some difficulties of representation and solution of linear programs. An affine scaling algorithm is implemented in conjunction with a simple rounding heuristic to asses the benefit of interior point trajectories to provide approximate solutio

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Feldman, Jon 1975. "Decoding error-correcting codes via linear programming." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/42831.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.<br>Includes bibliographical references (p. 147-151).<br>Error-correcting codes are fundamental tools used to transmit digital information over unreliable channels. Their study goes back to the work of Hamming [Ham50] and Shannon [Sha48], who used them as the basis for the field of information theory. The problem of decoding the original information up to the full error-correcting potential of the system is often very complex, especially for modern codes that approach the theoreti

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KRUTZ, JILL E. "DESIGN OF A HYDRAULIC ACTUATOR TEST STAND FOR NON-LINEAR ANALYSIS OF HYDRAULIC ACTUATOR SYSTEM." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin990813095.

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Heybroek, Kim. "On Energy Efficient Mobile Hydraulic Systems : with Focus on Linear Actuation." Doctoral thesis, Linköpings universitet, Fluida och mekatroniska system, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-142326.

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In this dissertation, energy efficient hydraulic systems are studied. The research focuses on solutions for linear actuators in mobile applications, with emphasis on construction machines. Alongside the aspect of energy efficiency, the thesis deals with competing aspects in hydraulic system design found in the development of construction machines. Simulation models and controls for different concepts are developed, taking the whole machine into account. In line with this work, several proof of concept demonstrators are developed. First, pump controlled systems are studied and a novel concept b

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Hochwallner, Martin. "On Motion Control of Linear Incremental Hydraulic Actuators." Doctoral thesis, Linköpings universitet, Industriell Produktion, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-142264.

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Linear Incremental Hydraulic Actuators combine one or more short-stroke cylinders, and two or more engaging/disengaging mechanisms into one actuator with long, medium, or even unlimited stroke length. The motion of each single short-stroke actuator concatenated by the engaging/disengaging mechanisms forms the motion of the linear incremental hydraulic actuator. The patterns of how these motions are concatenated form the gaits of a specific linear incremental hydraulic actuator. Linear incremental hydraulic actuators may have more than one gait. In an application, the gaits may be combined to a

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Kelner, Jonathan 1980. "New geometric techniques for linear programming and graph partitioning." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/38295.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.<br>Includes bibliographical references (leaves 79-82).<br>In this thesis, we advance a collection of new geometric techniques for the analysis of combinatorial algorithms. Using these techniques, we resolve several longstanding questions in the theory of linear programming, polytope theory, spectral graph theory, and graph partitioning. The thesis consists of two main parts. In the first part, which is joint work with Daniel Spielman, we present the first randomized polynomial-ti

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SARAVANAN, SHANKAR. "EVALUATION OF SPHERICITY USING MODIFIED SEQUENTIAL LINEAR PROGRAMMING." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132343760.

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Tiessen, Meinard. "Predicting the development of crescentic bed patterns : a comparison of linear stability model results with field observations." Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/11028/.

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Large scale patterns in the seabed often occur in the nearshore zone of sandy beaches. A widely occurring bed pattern is the crescentic bar. These bed patterns develop under moderate wave conditions, and form a lunate shaped alongshore pattern in front of a coast. Over recent years, knowledge concerning the development, occurrence, and characteristics of these bed patterns has been significantly expanded through field studies and modelling attempts. An example of such a model is the linear stability analysis, which describes the initial development of crescentic bed patterns along an undisturb

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Trimarchi, Daniele. "Analysis of downwind sail structures using non-linear shell finite elements : wrinkle development and fluid interaction effects." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/348893/.

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Downwind yacht sails are subjected to fluid structure interaction effects which can slightly change the initial design shape, with a direct impact on the overall performances. The turbulent flow acting on downwind sails is separated for the larger part of the device, with large vortices and recirculating regions. The sail is made of a thin fabric, the deformation of which is affected by wrinkling, which produces out-of-plane oscillations of the surface of the fabric, and locally changes the stress/strain distribution. Because of the interactions of these fluid and structural phenomena, the det

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Книги з теми "Hydraulic engineering Linear programming"

Yinyu, Ye, ed. Linear and nonlinear programming. 3rd ed. Springer, 2008.

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Ozan, Turgut. Applied mathematical programming for engineering and production management. Prentice-Hall, 1986.

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service), SpringerLink (Online, ed. Eigenvalues of Non-Linear Problems. Springer-Verlag Berlin Heidelberg, 2011.

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Bittanti, Sergio. Time Series and Linear Systems. Springer Berlin Heidelberg, 1986.

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Tang, S. L. Linear optimization in applications. Hong Kong University Press, 1999.

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Cooper, William W. Handbook on Data Envelopment Analysis. Springer Science+Business Media, LLC, 2011.

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N, Pistikopoulos Efstratios, Georgiadis Michael C, and Dua Vivek, eds. Multi-parametric programming : theory, algorithms and applications. Wiley-VCH, 2007.

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Tamás, Terlaky, Vial J. P, and Roos Cornelis 1941-, eds. Interior point methods for linear optimization. 2nd ed. Springer, 2006.

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Bakr, Mohamed. Nonlinear optimization in electrical engineering with applications in MATLAB. The Institution of Engineering and Technology, 2013.

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ReVelle, Charles. Civil and environmental systems engineering. 2nd ed. Pearson Education, 2004.

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Частини книг з теми "Hydraulic engineering Linear programming"

Borne, Pierre, Dumitru Popescu, Florin Gh Filip, Dan Stefanoiu, and Bernard Dubuisson. "Linear Programming." In Optimization in Engineering Sciences. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118577899.ch1.

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Helmke, Uwe, and John B. Moore. "Linear Programming." In Communications and Control Engineering. Springer London, 1994. http://dx.doi.org/10.1007/978-1-4471-3467-1_4.

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Stroud, Ken A. "Linear Optimisation (Linear Programming)." In Further Engineering Mathematics. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4757-6616-5_20.

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Stroud, K. A. "Linear Optimisation (Linear Programming)." In Further Engineering Mathematics. Palgrave Macmillan UK, 1990. http://dx.doi.org/10.1007/978-1-349-20731-2_20.

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Stroud, K. A. "Linear Optimisation (Linear Programming)." In Further Engineering Mathematics. Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14020-6_20.

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Willis, Robert, and Brad A. Finney. "Linear Programming." In Environmental Systems Engineering and Economics. Springer US, 2004. http://dx.doi.org/10.1007/978-1-4615-0479-5_6.

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Phan, Chi M. "Linear Programming." In Numerical Calculations for Process Engineering Using Excel VBA. CRC Press, 2023. http://dx.doi.org/10.1201/9781003364511-5.

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Stroud, K. A., and Dexter Booth. "Optimization and linear programming." In Advanced Engineering Mathematics. Macmillan Education UK, 2011. http://dx.doi.org/10.1057/978-0-230-34474-7_28.

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Faísca, Nuno P., Vivek Dua, and Efstratios N. Pistikopoulos. "Multiparametric Linear and Quadratic Programming." In Process Systems Engineering. Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527631209.ch1.

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Dua, Pinky, and Michael C. Georgiadis. "Multiparametric Mixed-Integer Linear Programming." In Process Systems Engineering. Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527631209.ch3.

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Тези доповідей конференцій з теми "Hydraulic engineering Linear programming"

Mulholland, Michael. "Refinery Optimal Transitions by Iterative Linear Programming." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.180110.

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This paper focuses on the control and dynamics of an oil refinery process on an intermediate level - the flows, masses and compositions of and between units within the refining operation. It aims to elucidate optimal strategies for the routing of streams during upset events imposed on the process. A general flowsheet simulation technique including tunable controllers for flows, compositions, levels and reaction extents is incorporated in a Linear Programming model. A standard node represents a mixed receiving tank, with exit streams which can be split, converted and separated. These nodes can

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Gaio, Laura M., Renato A. M. Furtado, Luiz R. A. Oliveira, André L. M. Marcato, Ivo C. S. Junior, and Alberto S. Kligerman. "Evaluation of Linear and Non-Linear Programming Strategies for Hydrothermal Planning Using Reference Curves." In 2024 59th International Universities Power Engineering Conference (UPEC). IEEE, 2024. https://doi.org/10.1109/upec61344.2024.10892398.

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Prasmoro, Alloysius Vendhi, Nurhadi Siswanto, Budi Santosa, and Farhan Triofani. "Sustainable Coal Mining Optimization with Mixed Integer Linear Programming." In 2024 IEEE Technology & Engineering Management Conference - Asia Pacific (TEMSCON-ASPAC). IEEE, 2024. https://doi.org/10.1109/temscon-aspac62480.2024.11025060.

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Kerzhner, Aleksandr A., and Christiaan J. J. Paredis. "A Mathematical Programming-Based Approach for Architecture Selection." In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-71025.

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Modern systems are difficult to design because there are a significant number of potential alternatives to consider. The specification of an alternative includes an architecture (which describes the components and connections of the system) and component sizings (the sizing parameter for each component). In current practice, designers rely mainly on their experience and intuition to select a desired architecture without much computational support and then spend most of their effort on optimizing component sizings. In this paper, an approach for representing an architecture selection as a mixed

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Safaei, Ali, Vahid Esfahanian, Mohammad Reza Ha’iri-Yazdi, Mohsen Esfahanian, Masood Masih Tehrani, and Hassan Nehzati. "Optimized Control Strategy Based on the Driving Cycle Type for a Hydraulic Hybrid Bus." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82673.

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Using hybrid powertrains is an attractive idea to reduce the fuel consumption in vehicles. Control strategy is the most challenging subject in designing of a hybrid powertrain. In this paper, an optimized control strategy based on the driving cycle type designed for a hydraulic hybrid bus has been presented. Because of considering the type of the driving cycle, the proposed control strategy can be named as an intelligent one. In this controller, at first, four standard driving cycles have been defined as the reference clusters. Then the optimized control strategy for each cluster has been deri

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Keel, L. H., and S. P. Bhattacharyya. "Controller Design Using Linear Programming." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0271.

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Abstract This paper deals with the problem of designing a feedback controller, of a prescribed order, for a fixed plant, as well as for an uncertain family of plants containing parameter uncertainty, so that stability, robust stability and robust performance are attained. The desired closed loop specifications considered here are given in terms of a target closed loop system. In general point targets are generically unattainable with a fixed order controller. By enlarging the target from a fixed point set to an interval set the solvability conditions with a fixed order controller are relaxed a

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Mulkay, Eric L., and Singiresu S. Rao. "Fuzzy Heuristics for Sequential Linear Programming." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/dac-3966.

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Abstract Numerical implementations of optimization algorithms often use parameters whose values are not strictly determined by the derivation of the algorithm, but must fall in some appropriate range of values. This work describes how fuzzy logic can be used to “control” such parameters to improve algorithms performance. This concept is shown with the use of sequential linear programming (SLP) due to its simplicity in implementation. The algorithm presented in this paper implements heuristics to improve the behavior of SLP based on current iterate values of design constraints and changes in se

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"Sensorless position control system of hydraulic linear stepper actuator." In Engineering Mechanics 2018. Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, 2018. http://dx.doi.org/10.21495/91-8-185.

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Wu, Junjie, Renzhi Zhang, Haiquan Chen, Wenhua Li, and Yang Ji. "Analysis of pulsation of linear hydraulic motor." In 2018 8th International Conference on Manufacturing Science and Engineering (ICMSE 2018). Atlantis Press, 2018. http://dx.doi.org/10.2991/icmse-18.2018.83.

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Landberg, Magnus, Martin Hochwallner, and Petter Krus. "Novel Linear Hydraulic Actuator." In ASME/BATH 2015 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/fpmc2015-9604.

Повний текст джерела

Анотація:

In the area of linear motion, infinite stroke only is provided by electric actuators today, until now there has been no hydraulic alternative. The novel linear hydraulic actuator consists of two double acting cylinders with a common piston rod. The working principle of this actuator for short movements is that at least one piston is connected to the piston rod and the actuator works like an ordinary hydraulic double acting cylinder. For longer movements one of the pistons is connected alternatively to the piston rod providing the drive. In this way the two pistons are moving the piston rod alt

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