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Статті в журналах з теми "Mechanical dynamic systems"
Dolgin, V. P. "Dynamic diagnostics of mechanical manufacturing systems." Journal of Mathematical Sciences 82, no. 2 (November 1996): 3316–19. http://dx.doi.org/10.1007/bf02363992.
Повний текст джерелаWu, Zhe, Guang Yang, Qiang Zhang, Shengyue Tan, and Shuyong Hou. "Information Dynamic Correlation of Vibration in Nonlinear Systems." Entropy 22, no. 1 (December 31, 2019): 56. http://dx.doi.org/10.3390/e22010056.
Повний текст джерелаAuslander, David M. "Dynamic Systems and Control Division." Mechanical Engineering 135, no. 06 (June 1, 2013): S21—S22. http://dx.doi.org/10.1115/1.2013-jun-10.
Повний текст джерелаColbaugh, R., E. Barany, and K. Glass. "Adaptive stabilization of uncertain nonholonomic mechanical systems." Robotica 16, no. 2 (March 1998): 181–92. http://dx.doi.org/10.1017/s0263574798000514.
Повний текст джерелаWen, Bang Chun, Zhao Hui Ren, Qing Kai Han, Xiao Peng Li, and Ju Quan Mao. "Nonlinear Dynamics of Mechanical Systems with Sectional Frictions." Key Engineering Materials 353-358 (September 2007): 754–57. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.754.
Повний текст джерелаDinc, O. S., R. Cromer, and S. J. Calabrese. "Redesigning Mechanical Systems for Low Wear Using System Dynamics Modeling." Journal of Tribology 118, no. 2 (April 1, 1996): 415–22. http://dx.doi.org/10.1115/1.2831318.
Повний текст джерелаJuang, Jer-Nan, Shih-Chin Wu, Minh Phan, and Richard W. Longman. "Passive dynamic controllers for nonlinear mechanical systems." Journal of Guidance, Control, and Dynamics 16, no. 5 (September 1993): 845–51. http://dx.doi.org/10.2514/3.21091.
Повний текст джерелаCiobanu, Gabriel, and Dănuţ Rusu. "Kinematics of Mechanical Systems by Dynamic Geometry." Mathematics 10, no. 23 (November 25, 2022): 4457. http://dx.doi.org/10.3390/math10234457.
Повний текст джерелаSHI, F., P. RAMESH, and S. MUKHERJEE. "DYNAMIC ANALYSIS OF MICRO-ELECTRO-MECHANICAL SYSTEMS." International Journal for Numerical Methods in Engineering 39, no. 24 (December 30, 1996): 4119–39. http://dx.doi.org/10.1002/(sici)1097-0207(19961230)39:24<4119::aid-nme42>3.0.co;2-4.
Повний текст джерелаØysaed, Harry. "Dynamic mechanical properties of multiphase acrylic systems." Journal of Biomedical Materials Research 24, no. 8 (August 1990): 1037–48. http://dx.doi.org/10.1002/jbm.820240806.
Повний текст джерелаДисертації з теми "Mechanical dynamic systems"
Davison, Paul. "Dynamic analysis of flexible multibody mechanical systems." Thesis, University of Bath, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261035.
Повний текст джерелаTariku, Fitsum. "Simulation of dynamic mechanical systems with stick-slip friction." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0011/MQ38415.pdf.
Повний текст джерелаYunt, Mehmet 1975. "Nonsmooth dynamic optimization of systems with varying structure." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/65284.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (p. 357-365).
In this thesis, an open-loop numerical dynamic optimization method for a class of dynamic systems is developed. The structure of the governing equations of the systems under consideration change depending on the values of the states, parameters and the controls. Therefore, these systems are called systems with varying structure. Such systems occur frequently in the models of electric and hydraulic circuits, chemical processes, biological networks and machinery. As a result, the determination of parameters and controls resulting in the optimal performance of these systems has been an important research topic. Unlike dynamic optimization problems where the structure of the underlying system is constant, the dynamic optimization of systems with varying structure requires the determination of the optimal evolution of the system structure in time in addition to optimal parameters and controls. The underlying varying structure results in nonsmooth and discontinuous optimization problems. The nonsmooth single shooting method introduced in this thesis uses concepts from nonsmooth analysis and nonsmooth optimization to solve dynamic optimization problems involving systems with varying structure whose dynamics can be described by locally Lipschitz continuous ordinary or differential-algebraic equations. The method converts the infinitedimensional dynamic optimization problem into an nonlinear program by parameterizing the controls. Unlike the state of the art, the method does not enumerate possible structures explicitly in the optimization and it does not depend on the discretization of the dynamics. Instead, it uses a special integration algorithm to compute state trajectories and derivative information. As a result, the method produces more accurate solutions to problems where the underlying dynamics is highly nonlinear and/or stiff for less effort than the state of the art. The thesis develops substitutes for the gradient and the Jacobian of a function in case these quantities do not exist. These substitutes are set-valued maps and an elements of these maps need to be computed for optimization purposes. Differential equations are derived whose solutions furnish the necessary elements. These differential equations have discontinuities in time. A numerical method for their solution is proposed based on state event location algorithms that detects these discontinuities. Necessary conditions of optimality for nonlinear programs are derived using these substitutes and it is shown that nonsmooth optimization methods called bundle methods can be used to obtain solutions satisfying these necessary conditions. Case studies compare the method to the state of the art and investigate its complexity empirically.
by Mehmet Yunt.
Ph.D.
Orbak, Âli Yurdun 1970. "Identification and self-tuning control of dynamic systems." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/35457.
Повний текст джерелаDing, Huali. "Dynamic wear models for gear systems." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1194025602.
Повний текст джерелаOspanov, Asset. "DELAY DIFFERENTIAL EQUATIONS AND THEIR APPLICATION TO MICRO ELECTRO MECHANICAL SYSTEMS." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5674.
Повний текст джерелаShi, Zhenghong. "Nonlinear Time-varying Dynamic Modeling of Vehicle Driveline Systems with Emphasis on Hypoid Gear Excitation and Response." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1490355055106922.
Повний текст джерелаMoody, Seth S. "Development of Dynamic Thermal Performance Metrics For Eco-roof Systems." Thesis, Portland State University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1535587.
Повний текст джерелаIn order to obtain credit for an eco-roof in building energy load calculations the steady state and time-varying thermal properties (thermal mass with evapotranspiration) must be fully understood. The following study presents results of experimentation and modeling in an effort to develop dynamic thermal mass performance metrics for eco-roof systems. The work is focused on understanding the thermal parameters (foliage & soil) of an eco-roof, further validation of the EnergyPlus Green Roof Module and development of a standardized metric for assessing the time-varying thermal benefits of eco-roof systems that can be applied across building types and climate zones.
Eco-roof foliage, soil and weather parameters were continuously collected at the Green Roof Integrated PhotoVoltaic (GRIPV) project from 01/20/2011 to 08/28/2011. The parameters were used to develop an EnergyPlus eco-roof validation model. The validated eco-roof model was then used to estimate the Dynamic Benefit for Massive System (DBMS) in 4 climate-locations: Portland Oregon, Chicago Illinois, Atlanta Georgia and Houston Texas.
GRIPV30 (GRIPV soil with 30% soil organic matter) was compared to 12 previously tested eco-roof soils. GRIPV30 reduced dry soil conductivity by 50%, increased field capacity by 21% and reduced dry soil mass per unit volume by 60%. GRIPV30 soil had low conductivity at all moisture contents and high heat capacity at moderate and high moisture content. The characteristics of the GRIPV30 soil make it a good choice for moisture retention and reduction of heat flux, improved thermal mass (heat storage) when integrating an eco-roof with a building.
Eco-roof model validation was performed with constant seasonal moisture driven soil properties and resulted in acceptable measured - modeled eco-roof temperature validation. LAI has a large impact on how the Green Roof Module calculates the eco-roof energy balance with a higher impact on daytime (measured - modeled) soil temperature differential and most significant during summer.
DBMS modeling found the mild climates of Atlanta Georgia and Houston Texas with eco-roof annual DBMS of 1.03, 3% performance improvement above the standard building, based on cooling, heating and fan energy consumption. The Chicago Illinois climate with severe winter and mild spring/summer/fall has an annual DBMS of 1.01. The moderate Portland Oregon climate has a below standard DBMS of 0.97.
Tubilla, Kuri Fernando. "Dynamic scheduling of manufacturing systems with setups and random disruptions." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/67606.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (p. 249-256).
Manufacturing systems are often composed of machines that can produce a variety of items but that most undergo time-consuming (and possibly costly) setups when switching between product types. Scheduling these setups efficiently can have important economic effects on the performance of the plant and involves a tradeoff between throughput, inventory, and operating costs. In addition, the schedule must be robust to random disruptions such as failures or raw material shortages, which are common in production environments. In this thesis, we study policies that address the setup scheduling problem dynamically, in response to current conditions in the system. A new heuristic, called the Hedging Zone Policy (HZP), is introduced and developed. It is a dynamic-sequence policy that always produces the current part type at its maximum production rate until a fixed base stock level is reached. Then, before switching setups, the policy might produce the current part type at its demand rate for some additional time. When selecting changeovers, the HZP implements two types of decision rules. If the difference between base stock and surplus level is small for all part types, the item with the largest weighted difference is selected. Otherwise, the policy uses a fixed priority ranking to select between items that are far from their base stock value. In order to demonstrate the benefits of our policy, we also adapt and implement several other heuristics that have been proposed in the literature for related models. The policies are first analyzed in a purely deterministic setting. The stability of the HZP is addressed and it is shown that a poor selection of its parameters leads to a condition in which some low-priority parts are ignored, resulting in an unstable system. Using Lyapunov's direct method, we obtain an easy-to-evaluate and not-too-conservative condition that ensures production of all part types with bounded surplus. We then compare, through a series of extensive numerical experiments with three-part-type systems, the deterministic performance of the policies in both make-to-order and make-to-stock settings. We show that the HZP outperforms other policies within its class in both cases, a fact that is mainly attributed to its priority-based decisions. When compared to the approximate optimal cost of the problem, our policy performs very well in the make-to-order case, while the simplicity of its base stock structure makes it less competitive in the deterministic make-to-stock problem. The results are then leveraged for the study of a stochastic model, where we consider the effect of random disruptions in the form of machine failures. We prove that our model converges to a fluid limit under an appropriate scaling. This fact allows us to employ our deterministic stability conditions to verify the stochastic (rate) stability of the failure-prone system. We also extend our previous numerical experiments by characterizing the performance of the policies in the stochastic setting. The results show that the HZP still outperforms other policies in the same class. Furthermore, we find that except for cases where failures occur much less or much more frequently than changeovers, the HZP outperforms a fixed-sequence policy that is designed to track a pre-determined, near-optimal deterministic schedule.
by Fernando Tubilla.
Ph.D.
Lee, Sungho Ph D. Massachusetts Institute of Technology. "Dynamic response analysis of spar buoy floating wind turbine systems." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/46545.
Повний текст джерелаIncludes bibliographical references (leaves 83-84).
The importance of alternative energy development has been dramatically increased by the dwindling supplies of oil and gas, and our growing efforts to protect our environment. A variety of meaningful steps have been taken in order to come up with cleaner, healthier and more affordable energy alternatives. Wind energy is one of the most reliable energy alternatives for countries that have sufficiently large wind sources. Due to the presence of steady and strong winds, and the distance from coastline residential, the offshore wind farm has become highly attractive as an ideal energy crisis solution. Floating wind turbine systems are being considered as a key solution to make the offshore wind farm feasible from an economic viewpoint, and viable as an energy resource. This paper presents the design of a synthetic mooring system for spar buoy floating wind turbines functioning in shallow water depths. Nacelle acceleration, static and dynamic tensions on catenaries, the maximum tension acting on the anchors are considered as design performances, and a stochastic analysis method has been used to evaluate those quantities based on sea state spectral density functions. The performance at a 100-year hurricane condition is being defined as a limiting case, and a linear wave theory has been the most fundamental theory applied for the present analysis.
by Sungho Lee.
S.M.
Книги з теми "Mechanical dynamic systems"
Angeles, Jorge. Dynamic Response of Linear Mechanical Systems. Boston, MA: Springer US, 2012. http://dx.doi.org/10.1007/978-1-4419-1027-1.
Повний текст джерелаAgrawal, Sunil Kumar. Optimization of Dynamic Systems. Dordrecht: Springer Netherlands, 1999.
Знайти повний текст джерелаAgrawal, Sunil Kumar. Optimization of dynamic systems. Dordrecht: Kluwer Academic Publishers, 1999.
Знайти повний текст джерелаMatasov, A. I. Estimators for Uncertain Dynamic Systems. Dordrecht: Springer Netherlands, 1998.
Знайти повний текст джерелаL, Junkins John, ed. Optimal estimation of dynamic systems. 2nd ed. Boca Raton, FL: Chapman and Hall/CRC, 2011.
Знайти повний текст джерелаH, Richardson Herbert, Nelson Clayton C, American Society of Mechanical Engineers. Steering Committee on Dynamic Systems and Control., and American Society of Mechanical Engineers., eds. Research needs in dynamic systems and control. New York, NY (345 E. 47th St., New York 10017): American Society of Mechanical Engineers, 1988.
Знайти повний текст джерелаEsfandiari, Ramin S. Modeling and analysis of dynamic systems. Boca Raton: Taylor & Francis, 2010.
Знайти повний текст джерела1974-, Lu Bei, ed. Modeling and analysis of dynamic systems. Boca Raton: Taylor & Francis, 2010.
Знайти повний текст джерелаservice), SpringerLink (Online, ed. Dynamic Response of Linear Mechanical Systems: Modeling, Analysis and Simulation. Boston, MA: Springer Science+Business Media, LLC, 2012.
Знайти повний текст джерелаA, Rothbart Harold, and Brown Thomas H. Jr, eds. Mechanical design handbook: Measurement, analysis, and control of dynamic systems. 2nd ed. New York: McGraw-Hill, 2006.
Знайти повний текст джерелаЧастини книг з теми "Mechanical dynamic systems"
Esfandiari, Ramin S., and Bei Lu. "Mechanical Systems." In Modeling and Analysis of Dynamic Systems, 169–261. Third edition. | Boca Raton : Taylor & Francis, CRC Press, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/b22138-5.
Повний текст джерелаSkowronski, Janislaw M. "Dynamic Games." In Control of Nonlinear Mechanical Systems, 368–405. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3722-9_8.
Повний текст джерелаDarbyshire, Alan, and Charles Gibson. "Mechanical principles of dynamic engineering systems." In Mechanical Engineering, 75–185. 4th ed. London: Routledge, 2022. http://dx.doi.org/10.1201/9781003256571-2.
Повний текст джерелаFindeisen, Dietmar. "Theory of Dynamic Systems." In System Dynamics and Mechanical Vibrations, 1–8. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-04205-2_1.
Повний текст джерелаWhite, K. Preston. "Mathematical Models of Dynamic Physical Systems." In Mechanical Engineers' Handbook, 300–382. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/0471777455.ch10.
Повний текст джерелаSrinivasan, Krishnaswamy. "State-Space Methods for Dynamic Systems Analysis." In Mechanical Engineers' Handbook, 717–56. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/0471777455.ch17.
Повний текст джерелаVulfson, Iosif. "Dynamic Models of Cyclic Mechanical Systems." In Foundations of Engineering Mechanics, 17–39. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-12634-0_2.
Повний текст джерелаWijker, Jaap. "Random Vibration of Linear Dynamic Systems." In Mechanical Vibrations in Spacecraft Design, 201–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08587-5_11.
Повний текст джерелаWijker, Jaap. "Free-free Dynamic Systems, Inertia Relief." In Mechanical Vibrations in Spacecraft Design, 303–11. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08587-5_14.
Повний текст джерелаWu, Chongjian. "WPA for Analyzing Hybrid Dynamic Systems." In Springer Tracts in Mechanical Engineering, 131–55. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7237-1_5.
Повний текст джерелаТези доповідей конференцій з теми "Mechanical dynamic systems"
Chopra, Nikhil, and YenChen Liu. "Controlled Synchronization of Mechanical Systems." In ASME 2008 Dynamic Systems and Control Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/dscc2008-2267.
Повний текст джерелаCheng, Hongtai, Heping Chen, Xiaohua Zhang, and Hongjun Chen. "Dynamic Servo Control for Underactuated Mechanical Systems." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87659.
Повний текст джерелаWoo, Hanseung, and Kyoungchul Kong. "Impedance Reduction Controller Design for Mechanical Systems." In ASME 2013 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/dscc2013-3737.
Повний текст джерелаLiang, Changwei, You Wu, and Lei Zuo. "Vibration Energy Harvesting System With Mechanical Motion Rectifier." In ASME 2015 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/dscc2015-9837.
Повний текст джерелаKirimoto, Atsushi, Hiroaki Ito, Mitsuhiro Horade, Toshio Takayama, Misato Chimura, Tomohito Ohtani, Yasushi Sakata, and Makoto Kaneko. "On-Chip Dynamic Mechanical Measurement." In 2019 IEEE 32nd International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2019. http://dx.doi.org/10.1109/memsys.2019.8870789.
Повний текст джерелаWang, Shuo, Hyunglae Lee, and Neville Hogan. "Ankle Mechanical Impedance Under Muscle Fatigue." In ASME 2013 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/dscc2013-4060.
Повний текст джерелаYuan, L., and J. Rastegar. "On the Dynamic Behavior of High Speed Mechanical Systems." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/dac-8674.
Повний текст джерелаTan, Yonghong, Ruili Dong, Yanyan Li, Xiang Chen, and Hong He. "Nonsmooth dynamic filtering for mechanical servo-systems." In 2016 12th IEEE International Conference on Control and Automation (ICCA). IEEE, 2016. http://dx.doi.org/10.1109/icca.2016.7505327.
Повний текст джерелаPotter, T. E., K. D. Willmert, and M. Sathyamoorthy. "Nonlinear Optimal Design of Dynamic Mechanical Systems." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0350.
Повний текст джерелаAl-Bedoor, B. O., and Y. A. Khulief. "Dynamic Analysis of Mechanical Systems With Elastic Telescopic Members." In ASME 1994 Design Technical Conferences collocated with the ASME 1994 International Computers in Engineering Conference and Exhibition and the ASME 1994 8th Annual Database Symposium. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/detc1994-0274.
Повний текст джерелаЗвіти організацій з теми "Mechanical dynamic systems"
Haug, Edward J. Dynamic and Design Sensitivity Analysis of Rigid and Elastic Mechanical Systems with Intermittent Motion. Fort Belvoir, VA: Defense Technical Information Center, December 1985. http://dx.doi.org/10.21236/ada163982.
Повний текст джерелаChen, Xiao, Jaisree Iyer, and Susan Carroll. Dynamic reduced order modelling (ROM) of chemical and mechanical processes in CO2-cement systems. Office of Scientific and Technical Information (OSTI), September 2018. http://dx.doi.org/10.2172/1476178.
Повний текст джерелаWisanrakkit, G., and J. K. Gillham. Effect of Physical Annealing on the Dynamic Mechanical Properties of A High T(g) Amine-Cured Epoxy Systems. Fort Belvoir, VA: Defense Technical Information Center, March 1989. http://dx.doi.org/10.21236/ada205980.
Повний текст джерелаLong, Wendy, Zackery McClelland, Dylan Scott, and C. Crane. State-of-practice on the mechanical properties of metals for armor-plating. Engineer Research and Development Center (U.S.), January 2023. http://dx.doi.org/10.21079/11681/46382.
Повний текст джерелаPerdigão, Rui A. P., and Julia Hall. Spatiotemporal Causality and Predictability Beyond Recurrence Collapse in Complex Coevolutionary Systems. Meteoceanics, November 2020. http://dx.doi.org/10.46337/201111.
Повний текст джерелаBloch, Anthony M. Control, Stabilization and Dynamics of Mechanical Systems. Fort Belvoir, VA: Defense Technical Information Center, December 1998. http://dx.doi.org/10.21236/ada380932.
Повний текст джерелаAzene, Muluneh, A. K. Bajaj, and O. D. Nwokah. Structural Dynamics of Nonlinear Mechanical Systems with Cyclic Symmetry. Fort Belvoir, VA: Defense Technical Information Center, June 1996. http://dx.doi.org/10.21236/ada391308.
Повний текст джерелаSen, Surajit. Dynamics and Control of Mechanical Energy Propagation in Granular Systems. Fort Belvoir, VA: Defense Technical Information Center, January 2012. http://dx.doi.org/10.21236/ada587076.
Повний текст джерелаHristu, Dimitrios. The Dynamics of a Forced Sphere-Plate Mechanical System. Fort Belvoir, VA: Defense Technical Information Center, January 2000. http://dx.doi.org/10.21236/ada439900.
Повний текст джерелаHolmes, Philip. Nonlinear Dynamical Systems in Mechanics and Biology. Fort Belvoir, VA: Defense Technical Information Center, July 1995. http://dx.doi.org/10.21236/ada299148.
Повний текст джерела