Relevant bibliographies by topics / Torque analysis

Academic literature on the topic 'Torque analysis'

Author: Grafiati
Published: 19 August 2021
Last updated: 1 February 2022

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Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Journal articles on the topic "Torque analysis":

1

Irasari, Pudji, Muhammad Fathul Hikmawan, and Puji Widiyanto. "Torque Characteristic Analysis of Outer Rotor Permanent Magnet Generator for Low Head Hydro Power Application." Jurnal IPTEK 23, no. 2 (December 31, 2019): 79–86. http://dx.doi.org/10.31284/j.iptek.2019.v23i2.524.

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This paper analyzes the torque characteristics of outer rotor PMG for low head hydro power application. The aim is to prevent the generator torque from exceeding the turbine torque as the prime mover so that the system can work properly in both start and steady state conditions. The PMG is of outer rotor type and the torques are calculated analytically and numerically. The analysis is focused only on the PMG without connecting it to the turbine. Two analyzed torques include electromagnetic torque and starting torque, which comprises cogging torque, hysteresis torque and friction torque. The electromagnetic torque was obtained by loading the PMG with resistance and impedance (RL-LL in series) respectively. The results indicate that electromagnetic torque is the highest among all the investigated torques although its value is only 5.6% of the turbine torque, and cogging torque is the highest among the starting torque. From those results, it can be concluded that the hydro turbine torque can overcome the generator torque both at start and steady state conditions.
2

Jia, Hongyan, Wenxin Shi, and Guoyuan Qi. "Coexisting Attractors, Energy Analysis and Boundary of Lü System." International Journal of Bifurcation and Chaos 30, no. 03 (March 15, 2020): 2050048. http://dx.doi.org/10.1142/s0218127420500480.

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In this study, first, the phenomenon of multistability in the Lü system is found, which shows the coexistence of two different point attractors and one chaotic attractor. These coexisting attractors are dependent on initial conditions of the system while the parameters of the system are fixed. Then, the Lü system is transformed to a Kolmogorov-type system, which includes the conservative torque consisting of the inertial torque and the internal torque, the dissipative torque, and the external torque. Moreover, by analyzing the combination of different types of torques and investigating the cycling of energy based on the Casimir function and Hamiltonian function, the interaction between the external torque and other torques is found to be the main reason for the Lü system to generate chaos. Finally, by investigating the Casimir function, it is found that the boundary of the Lü system is only related to system parameters.
3

Qi, Guoyuan, and Xiyin Liang. "Force Analysis of Qi Chaotic System." International Journal of Bifurcation and Chaos 26, no. 14 (December 30, 2016): 1650237. http://dx.doi.org/10.1142/s0218127416502370.

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The Qi chaotic system is transformed into Kolmogorov type of system. The vector field of the Qi chaotic system is decomposed into four types of torques: inertial torque, internal torque, dissipation and external torque. Angular momentum representing the physical analogue of the state variables of the chaotic system is identified. The Casimir energy law relating to the orbital behavior is identified and the bound of Qi chaotic attractor is given. Five cases of study have been conducted to discover the insights and functions of different types of torques of the chaotic attractor and also the key factors of producing different types of modes of dynamics.
4

Chu, Guoyu, Rukmi Dutta, Alireza Pouramin, and Muhammed Fazlur Rahman. "Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine." Energies 13, no. 11 (June 5, 2020): 2886. http://dx.doi.org/10.3390/en13112886.

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This paper investigates the theoretical reasons behind the low torque ripple of a fractional-slot concentrated-winding (FSCW) spoke-type interior permanent-magnet (IPM) machine obtained via a genetic algorithm-based optimization. To better understand the torque performance of the IPMM, this paper uses the frozen permeability method to segregate the overall torque into four components—magnet torque, reluctance torque, cogging torque, and the torque caused by cross-magnetization. Equations and detailed procedures of the torque separation method are discussed in the paper. Analysis of the separated torque components reveals that the counteraction between ripples of different torques leads to the low torque ripple. At high-load conditions, the magnetic saturation alters the torque ripples caused by cross-magnetization to offset ripples of other components resulting in minimization of the overall torque ripple. A detailed parametric analysis of the geometric parameters was carried out to understand their effect in producing minimum torque ripple in the optimized design. In the end, a prototype was built and used for the verification of the torque separation method and the analytical findings based on it.
5

Rawashdeh, Samir A. "Attitude Analysis of Small Satellites Using Model-Based Simulation." International Journal of Aerospace Engineering 2019 (April 15, 2019): 1–11. http://dx.doi.org/10.1155/2019/3020581.

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CubeSats, and small satellites in general, being small and relatively light, are sensitive to disturbance torques in the orbital environment. We developed a simulation tool that includes models of the major environmental torques and small satellite experiences in low Earth orbit, which allows users to study the attitude response for a given spacecraft and assist in the design of attitude control systems, such as selecting the magnet strength when using passive magnetic stabilization or designing the shape of the spacecraft when using aerodynamic attitude stabilization. The simulation tool named the Smart Nanosatellite Attitude Propagator (SNAP) has been public in precompiled form and widely used since 2010; this paper accompanies the release of SNAP’s source code with the inclusion of new models for aerodynamic torque and other new features. Details on internal models are described, including the models for orbit propagation, Earth’s magnetic field, gravity gradient torque, spacecraft shape modelling and aerodynamic torque, permanent magnetic dipole torque, and magnetic hysteresis. A discussion is presented on the significance of aerodynamic torque and magnetic hysteresis on a magnetically stabilized 3-unit CubeSat in the orbit of the International Space Station, from which many small satellites are deployed.
6

Zhao, Yongjie, Ziqiang Zhang, and Gang Cheng. "Inverse rigid-body dynamic analysis for a 3UPS-PRU parallel robot." Advances in Mechanical Engineering 9, no. 2 (February 2017): 168781401769319. http://dx.doi.org/10.1177/1687814017693194.

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Inverse rigid-body dynamic analysis for a 3UPS-PRU parallel robot are conducted in this research. The position, velocity, acceleration, jerk, and singularity are considered in the inverse kinematics analysis. The rigid-body dynamic model is developed by means of the principle of virtual work and the concept of link Jacobian matrices. The driving torque, driving power, and required output work of motors have been computed in the inverse rigid-body dynamics analysis. For the pre-defined trajectory, the required output work generated by the driving motor is achieved by numerical integration technique. The inverse kinematics and rigid-body dynamics have been investigated in an exhaustive decoupled way. The effects of the velocity of the moving platform on the components of the joint acceleration, joint jerk, driving torque, and driving power, which are related to the velocity of the moving platform, are investigated. There are linear relationships between the acceleration of the moving platform and the components of the joint acceleration, joint jerk, driving torque, and driving power, which are related to the acceleration of the moving platform. The total driving torques, the torques related to the acceleration, velocity, and gravity, the torques related to the moving platform, strut connected with the moving platform, strut connected with the base platform, and motor rotor-coupler are calculated. The total driving powers, the powers related to the acceleration component of torque, velocity component of torque, gravity component of torque, and the powers related to the moving platform, strut connected with the moving platform, strut connected with the base platform, and motor rotor-coupler are also achieved.
7

Carvalho, Humberto M. "Multilevel Models for the Analysis of Angle-Specific Torque Curves with Application to Master Athletes." Journal of Human Kinetics 49, no. 1 (December 1, 2015): 25–35. http://dx.doi.org/10.1515/hukin-2015-0105.

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Abstract The aim of this paper was to outline a multilevel modeling approach to fit individual angle-specific torque curves describing concentric knee extension and flexion isokinetic muscular actions in Master athletes. The potential of the analytical approach to examine between individual differences across the angle-specific torque curves was illustrated including between-individuals variation due to gender differences at a higher level. Torques in concentric muscular actions of knee extension and knee extension at 60°·s-1 were considered within a range of motion between 5°and 85° (only torques “truly” isokinetic). Multilevel time series models with autoregressive covariance structures with standard multilevel models were superior fits compared with standard multilevel models for repeated measures to fit anglespecific torque curves. Third and fourth order polynomial models were the best fits to describe angle-specific torque curves of isokinetic knee flexion and extension concentric actions, respectively. The fixed exponents allow interpretations for initial acceleration, the angle at peak torque and the decrement of torque after peak torque. Also, the multilevel models were flexible to illustrate the influence of gender differences on the shape of torque throughout the range of motion and in the shape of the curves. The presented multilevel regression models may afford a general framework to examine angle-specific moment curves by isokinetic dynamometry, and add to the understanding mechanisms of strength development, particularly the force-length relationship, both related to performance and injury prevention.
8

Rash, Gregory S., and Robert Shapiro. "A Three-Dimensional Dynamic Analysis of the Quarterback's Throwing Motion in American Football." Journal of Applied Biomechanics 11, no. 4 (November 1995): 443–59. http://dx.doi.org/10.1123/jab.11.4.443.

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Twelve collegiate football quarterbacks were videotaped while performing drop back passes. The video images were digitized using a Peak Performance system, and three-dimensional (3-D) kinematic and kinetic data were calculated from the 3-D coordinate data using standard analytical procedures. The sequential timing of peak shoulder torques in the delivery for the football throw was peak abduction torque prior to the point of maximum shoulder external rotation (MER), peak internal rotation torque just after MER, and peak horizontal adduction torque just prior to release. As anticipated, large medial deviation torques at the elbow were found in the acceleration phase. However, in many cases the quarterbacks demonstrated larger elbow lateral deviation torques during the follow-through than found in the acceleration phase. This paper will describe these and other kinetic results and the kinematic findings observed during the football pass.
9

Kahn-Jetter and, Zella L., and Suzanne Wright. "Finite Element Analysis of an Involute Spline." Journal of Mechanical Design 122, no. 2 (January 1, 2000): 239–44. http://dx.doi.org/10.1115/1.533573.

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Two finite element analyses of an involute spline are performed; one is axisymmetrically loaded and the other is nonaxisymmetrically loaded. An entire cross section of both an internal and external pair is analyzed for both models. It is shown that on the axisymmetrically loaded spline the highest stress experienced is the maximum compressive contact stress although the tensile stress in the shaft is also quite high. It is also shown that stress concentrations exist at the root and top of the tooth for both models. Furthermore, on the nonaxisymmetrically loaded spline at low torque, only a few teeth make initial contact, however, as torque is increased, more teeth come in contact. All the stresses remain relatively constant under increasing torque as more teeth are engaged. Once all teeth are in contact stress increases with higher torques. However, the maximum tensile stress (arising from stress concentrations) remains fairly constant, even at high torques, because the stress concentrations that occur at tooth roots appear to be relatively independent of the number of teeth in contact. [S1050-0472(00)00102-1]
10

Liu, Fuhao. "Dynamic analysis of drag torque for spur gear pairs considering the double-sided films." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 12 (February 10, 2016): 2253–62. http://dx.doi.org/10.1177/0954406216631370.

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Taking into account different drag torque, this paper investigates the influence of the lubricant films located in the backlash between meshing gear teeth pair on the gear dynamical behaviors. Numerical simulations show that the influence of the lubricant film on the coast side is significant under low loading, but under increased drag torques the influence is diminished. The shape of the hysteresis loop of double-sided films suggests that this model can make more sense. The sensitive of the drag torque is studied to illustrate the inverse relationship between drag torque and gear rattle: increased drag torque loading will increase to possibility of metal–metal contact which could generate noise, while decreased drag torque loading can promote noise due to rattle.
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You might also be interested in the extended bibliographies on the topic 'Torque analysis' for particular source types:
Journal articles Dissertations / Theses Books

Dissertations / Theses on the topic "Torque analysis":

1

Islam, Mohammed Rakibul. "Cogging Torque, Torque Ripple and Radial Force Analysis of Permanent Magnet Synchronous Machines." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1239038005.

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2

Hanekom, Alwyn Nicolaas. "A torque ripple analysis on reluctance synchronous machines." Thesis, Cape Peninsula University of Technology, 2006. http://hdl.handle.net/20.500.11838/1145.

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Thesis MTech(Electrical Engineering))--Cape Peninsula University of Technology, 2006
Reluctance Synchronous Machines (RSM) have, due to their rotor geometry, an inherently high torque ripple. This torque ripple is defined as the deviation of the minimum and maximum torque from the average value. It is unwanted as it indicates uneven pull on the rotor causing deformation of it and hence different air-gaps along the rotor circumference as well as acoustic noise. In applications such as power steering, robotics and radar positioning systems where high precision movement is vital, oscillating torque will lead to the malfunction of these devices and therefore suppressed the use and development of RSMs. Unlike the Induction machine (IM), the RSM has no copper losses in the rotor, which reduces the operating temperature significantly. With the development of electronic drives the quality of the output torque could be improved by means of accurate current- and flux space phasor control methods with much success and made the RSM a possible replacement for the IM. However, reducing torque ripple by means of purely geometrical changes is still a challenge to the machine designer. This thesis will focus on the reduction of torque ripple while leaving the average torque relatively unchanged by changing the rotor geometry. The rotor changes will take place by means of flux barriers and cut-outs while the stator has either semi-closed slots or magnetic wedges. In this work rotor structures with equal harmonic magnitudes but their angles 1800 apart. will be combined to form one machine and identify how torque harmonics respond. The change in average torque and power factor will be evaluated with all geometrical changes made to these machines throughout this work.
3

Bremner, Jonathan James. "Complex torque coefficient analysis of multi-device power systems." Thesis, University of Glasgow, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362955.

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D'Antuono, Damiano. "Torque-based statistical analysis for condition monitoring of automatic machines." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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This dissertation deals with the study, development and implementation of condition monitoring algorithms for automatic machines. These are implemented in the machine's PLC. First, data are collected from the machine. Each motion group has been studied to sample the most relevant points (10 points in total) in its trajectory. Second, data have been analysed. In particular, normality of data has been checked. Third, the condition monitoring task is fulfilled with a statistical analysis. In this context two tests are presented: the scalar test and the vector test. The scalar test consists in a simple and immediate test. This must be evaluated for all the 10 sampled points. The vector test takes into account the relationship between all the points. The outcome is just a single number. The vector test can be used to check the state of all different axes and, if showing some criticalities, the scalar test can be used to check why a particular axis is not performing as expected. A crucial issue is to find the healthy values (reference) for each motion group. This, in fact, is not constant but varies with temperature. A solution to obtain a robust reference value is presented in this thesis. Lastly, the condition monitoring task has been fulfilled with some machine learning techniques as well. A classifier is trained to estimate the time elapsed from last maintenance of a motion group. This can be then compared with the actual time from last maintenance to detect if the component is ageing worse than it should. To build the classifier, data have been acquired and elaborated. The final classifier is a voting classifier that shows some interesting robustness properties. To decide, it makes three sub-classifiers vote and chooses the majority. Also, a graphical user interface has been created with the machine learning approach. This can be added to the human-machine interface panel. Finally, a thorough comparison between the two approaches is presented.
5

Li, Feng Frank. "Design and analysis of fingertip Stewart Platform force/torque sensor." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0020/MQ37577.pdf.

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6

Ge, Yi. "Application of damping torque analysis in large-scale power systems." Thesis, Queen's University Belfast, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602514.

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The technique of damping torque analysis (DTA) is proposed on the basis of linearized Philips-Heffron model of a single-machine infinite-bus power system. Analysis is to examine the electric torque contribution from a particular source to the electromechanical oscillation loop of generator in the power system. An effective engineering method - phase compensation method - for the design of PSS was developed on the basis of DTA. In study of real large power systems, modeling of the whole power system is very complicated. The generators in the large power system and other equipments result in a very high order of system model. Therefore a proper simplification method has to be applied to reduce the high order of real large power system. The aim of system simplification is to reduce the order of the linearized model of the large power systems, maintaining the characteristics of the under studied low frequency. Power system stabilizers (PSSs) have been adopted to mitigate low-frequency oscillations in the grid. However, in concerning of efficiency of damping controller in the power systems, decomposed analysis of PSS is studied to be further evidence for selecting installing location of PSS in the power systems. With greater integration of wind turbine generators in the introduced realistic large-scale power systems, impact of doubly fed induction generators (DFIGs) has been investigate for further study of renewable energy connected power systems. In terms of coordinated design of PMU and PSS in real large-scale power systems, developments in communication systems have made it feasible to also use remote signals as PSS inputs provided by PMU units. So as to the selection of signals from multiple locations can be further improved..
7

Lv, Chen. "Damping torque analysis of power system stabiliser in power systems." Thesis, Queen's University Belfast, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.707821.

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Nowadays the small-signal angular stability problem caused by insufficient damping of low- frequency oscillations threatens the security and integrity of power grids when the power system is developing towards large or even super large interconnected grids. The low-frequency oscillation often persists for a long period of time, and in some cases it may interrupt stable operation of the power system. One effective way of suppressing the oscillations is that the auxiliary controllers called power system stabilisers (PSS) are installed in the excitation system of generators, to provide additional damping to the low-frequency power oscillations. The work presented in this thesis focuses on applying the damping torque analysis to power systems. The main contributions of the work are the following two aspects. Firstly, by using the damping torque analysis, an in-depth study on the damping contribution and distribution in modern power system is carried out. This study provides valuable detailed information about how and why the damping is distributed in the system as well as identifying the most responsible components to the damping. The results of extended analysis can be used to guide planning, operation and control of power systems, and have great value in practice. Secondly, the work has demonstrated that damping torque analysis is not only useful in studying global model of power systems as it was before, but can also be applied in local model of power systems and the new energy power generation systems (such as the wind power generation system). Hence the work significantly enhances the potential of the damping torque analysis technique in practical applications thereby making it comparable to the conventional method of modal analysis.
8

Bengtsson, Fredrik. "Estimation of Indicated– and Load– Torque from Engine Speed Variations." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7097.

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The importance of control systems and diagnostics in vehicles are increasing and has resulted in several new methods to calculate better control signals. The performance can be increased by calculating these signals close to optimum, but that also require more and precise information regarding the system.

One of the wanted control signals are the crankshaft torque and the thesis presents two different methods to estimate this torque using engine speed variations. These methods are Modeling of the Crankshaft and Frequency Analysis. The methods are evaluated and implemented on for a four cylinder SAAB engine. Measurements are made in an engine test cell as well as a vehicle.

The results show that the Modeling of the Crankshaft method does not produce a satisfying estimation, with a difference of about 200% between estimated and calculated torque. On the other hand, the Frequency Analysis provides an accurate estimation of both mean and instantaneous indicated torque, with a maximum difference of ±20% between estimated and calculated torque.

9

Olsson, Håkan. "Performance analysis of a low-speed high-torque hydrostatic transmission unit." Licentiate thesis, Luleå tekniska universitet, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-16922.

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This thesis concerns a study of the performance of an industrial low-speed high-torque hydrostatic drive system. This type of hydrostatic transmission is commonly used in continuous operation in a wide range of heavy-duty drive applications. In many applications the transmissions have to compete with e.g. electromechanical drives, such as DC or AC electric motors combined with gearboxes. In such situations, energy efficiency is a key selection criterion in that even a small increase in the efficiency of high power industrial drives would give substantial savings. Apart from efficiency, lifetime and reliability requirements are important parameters for industrial drive systems, as unplanned stops in industrial working processes can be very costly. The work presented in this thesis is primarily focused on analysing the efficiency behaviour in the transmission, both on the system level and on the component level. Attention has also been paid to lifetime issues, with special emphasis on wear occurring in a sliding contact in a radial piston hydraulic motor. In Paper A the distribution of power losses in a variable axial piston swash plate pump is investigated. The pump under study is commonly used in stationary industrial hydrostatic transmission systems. The churning losses in the pump have been estimated experimentally by measurements in a test rig. The leakage flow and the power losses in the contacts between the piston and the cylinder and between the slipper and the swash plate respectively were simulated with the help of the simulation tool CASPAR. For the pump studied, the churning losses are significant under the operating conditions typically occurring in industrial drive applications. The simulation results indicate that the leakage to the pump casing mainly originates from the gaps between the pistons and their respective cylinders and between the slippers and swash plate. The aim of Paper B is to study two sliding contacts inside a radial piston hydraulic motor and investigate their influence on the torque and power losses. Moreover, it is investigated whether and when a change in the lubrication regime can be expected in these contacts. This is accomplished by a combination of experimental and theoretical studies, with a special focus on two lubricated sliding contacts: the distributor valve contact and the piston/cam roller contact. The theoretical analysis of the contacts indicates, among other things, that the piston/cam roller contact can enter the mixed lubrication regime at low motor speeds. At low running speeds, an increased wear rate has been noted in the contact between the cylinder bore and the piston skirt in a radial piston hydraulic motor. Paper C describes a comparative investigation into different hydraulic fluids' friction properties and wear protection abilities. To simulate the contact between the cylinder bore and the piston skirt in the hydraulic motor, tests were performed in a reciprocating test rig where the contact geometry was of the cylinder-plate type. In the model test a synthetic ester aimed at meeting the conditions in water turbine applications received a top ranking regarding both friction and wear protection properties.
Godkänd; 2003; 20070217 (ysko)
10

Malm, Joacim. "Influence Analysis of Coupling between Tension and Torque in Single Armoured Cables." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-12173.

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When single armoured cables are under tension they will start to twist in direction depending on the lay angle of the armour wires on the cable. The cables start to twist due to the induced torque that appear within the cable and this induced torque can in the worst-case cause loops and kinks on the cable. These negative consequences are the subject to exploration by implementing a known analytical solution developed by Lanteigne (1985), into an external function in OrcaFlex which is a finite element software program capable of solving 3D non-linear arbitrarily deflections. It is specifically designed to be used for doing static and dynamic analysis on marine and offshore structures. Different cable installation scenarios cases have been created and some of these are validated through experimental testing at the testing facility at ABB, Karlskrona. The results from the different cases shows a good representation of the real twist and rotation of the cable. However, results also conclude that the induced torque that appear within the cable was not possible to be correctly represented by applying external torque from an external function. These results are important for further research within the area and they help creating a greater understanding of torque related problems with single armoured cable under tension.
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Books on the topic "Torque analysis":

1

Amin, Bahram. Induction motors: Analysis and torque control. Berlin: Springer, 2001.

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2

Bosserman, Bayard E. Butterfly valves: Torque, head loss, and cavitation analysis. 2nd ed. Denver, CO: American Water Works Association, 2012.

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3

Sun, Andy Kwan-Leung. Design and analysis of an electro-optical force/torque sensor. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1992.

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4

Luukko, Julius. Direct torque control of permanent magnet synchronous machines-analysis and implementation. Lappeenranta, Finland: Lappeenranta University of Technology, 2000.

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Kenny, Barbara H. Stator and rotor flux based deadbeat direct torque control of induction machines. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 2002.

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Laurila, Lasse. Analysis of torque and speed ripple producing non-idealities of frequency converters in electric drives. Lappeenranta: Lappeenranta University of Technology, 2004.

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Pyrhönen, Olli. Analysis and control of excitation, field weakening and stability in direct torque controlled electrically excited synchronous motor drives. Lappeenranta, Finland: Lappeenranta University of Technology, 1998.

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Ragon, Scott A. Optimization of composite box-beam structures including effects of subcomponent interaction. Blacksburg, VA: College of Engineering, Virginia Polytechnic Institute and State University, 1995.

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Pinto-Jayawardena, Kishali. Sri Lanka, the right not to be tortured: A critical analysis of the judicial response. Colombo: Law & Society Trust, 2008.

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Gjergji, Iside. Sociologia della tortura. Venice: Edizioni Ca' Foscari, 2019. http://dx.doi.org/10.30687/978-88-6969-391-5.

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This work addresses torture with the ambition to strengthen a properly sociological approach to it by bringing to the fore the social history of the tortured, also through the fundamental contribution of the political economy. This category is not utilised in an abstract way, it is brought into the picture through the social history of the bodies of those tortured. These bodies are not considered mere biological bodies subjugated by ‘power’, but rather bodies with a voice, bodies capable of revealing their social standing. Placing the bodies’ class at the centre of the analysis allows us to fully grasp the sociological substance of torture, to understand the underlying reasons for its historical persistence and constant diffusion. The book explores torture in a threefold way: firstly by analysing the image of torture as an effective hermeneutic tool of late modernity; secondly by adopting a historical perspective to identify structural elements and metamorphoses; thirdly by examining the concrete practices of torture to enable the establishment of a mutual relationship between history and biography.
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Book chapters on the topic "Torque analysis":

1

Kumar, Rishi, and Sankar Kumar Roy. "Dynamic Analysis of Wind Turbine Drivetrain Under Constant Torque." In Advances in Intelligent Systems and Computing, 605–18. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4032-5_55.

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Pammer, D., and E. Bognár. "Insertion Torque Function Analysis of Novel Dental Implant Geometry." In First European Biomedical Engineering Conference for Young Investigators, 83–86. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-573-0_21.

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3

Arnaudov, Kiril, Ognyan Alipiev, and Dimitar P. Karaivanov. "Biplanetary Gear Trains and Their Analysis Through the Torque Method." In New Approaches to Gear Design and Production, 311–22. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-34945-5_13.

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Kumar, Shilpee, and Sarbani Chakraborty. "Phase Portrait Analysis of Small Satellites: With and Without Torque." In Lecture Notes in Electrical Engineering, 451–63. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7091-5_37.

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Sturgis-Jensen, Brian, Antonio Palacios, Patrick Longhini, and Visarath In. "Bifurcation Analysis of Spin-Torque Nano Oscillators Parallel Array Configuration." In Understanding Complex Systems, 300–309. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-10892-2_31.

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Dobrovodský, K. "Quaternion Based Force-Torque Analysis of Open Serial Kinematic Structures." In Recent Advances in Robot Kinematics, 235–44. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1718-7_24.

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Belzile, Bruno, and Jorge Angeles. "Workspace Analysis and Torque Optimization on a Schönflies-Motion Generator." In ROMANSY 23 - Robot Design, Dynamics and Control, 449–57. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58380-4_54.

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Yan, Guohui. "Analysis and Optimization of Torque Variation in Steering Column Assembly." In Lecture Notes in Electrical Engineering, 57–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33795-6_6.

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Tounsi, Manel, Moez Beyaoui, Kamel Abboudi, Nabih Feki, Lassaad Walha, and Mohamed Haddar. "Reliability Analysis of Random Aerodynamic Torque of Horizontal Axis Wind Turbine." In Design and Modeling of Mechanical Systems—III, 341–48. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66697-6_34.

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Patocka, M., and R. Belousek. "Sensitivity Analysis of the Induction Machine Torque to the Substituting Circuit Elements." In Mechatronics 2013, 355–61. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02294-9_45.

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Conference papers on the topic "Torque analysis":

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Hedman, Anders. "Hydrodynamic Torque Converters in Mechanical Transmission Systems: Methods and Analysis." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-285.

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Methods for analysis of general mechanical transmission systems with a hydrodynamic torque converter (HTC) are presented. The methods are adapted for computer calculations. The properties of the HTC must be known, either explicitly as speed and torque characteristics, or implicitly as internal geometry (blade angles, etc.). Linear relationships between the torques and between the speeds of the shafts of the transmission system (except the HTC) are easily formulated. The HTC has coupled, non-linear, relationships for torques and speeds. Different ways of including these non-linear equations are presented. This can be implemented in a computer program. Solving the equation system yields the torque and speed of each shaft of the transmission system. Power losses can be handled.
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Livshiz, Michael, Minghui Kao, and Anthony Will. "Engine Torque Control Variation Analysis." In SAE World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2008. http://dx.doi.org/10.4271/2008-01-1016.

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Bediako, Emmanuel D. "Gear System Speed/Torque Analysis." In Powertrain & Fluid Systems Conference and Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2006. http://dx.doi.org/10.4271/2006-01-3355.

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Deur, Josˇko, Davor Hrovat, and Jahan Asgari. "Analysis of Torque Converter Dynamics." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32156.

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A good understanding of the torque converter dynamic behavior in a wide range of its operation gains the understanding of overall power train dynamic behavior, and facilitates design of different torque converter and power train control and estimation strategies. A detail analysis of the torque converter dynamics based on the linearized “static” and dynamic torque converter models is presented in the paper. The analysis results in simplified linearized torque converter models convenient for control and estimation purposes, and yields a clear insight to the torque converter capability of damping the power train vibrations.
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Nair, Deepthi S., G. Jagadanand, and Saly George. "Analysis of direct torque controlled BLDC motor with reduced torque ripple." In 2015 IEEE International Conference on Signal Processing, Informatics, Communication and Energy Systems (SPICES). IEEE, 2015. http://dx.doi.org/10.1109/spices.2015.7091502.

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Cai Wei, Chu Ya-xu, Ma Wen-xing, and Han Yu. "Analysis of the torque distribution characteristics of dual-turbine torque converter." In 2010 8th World Congress on Intelligent Control and Automation (WCICA 2010). IEEE, 2010. http://dx.doi.org/10.1109/wcica.2010.5554375.

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Wang, Hao, Xin Ning Hu, Chun Yan Cui, Hui Wang, Jing Wen Xu, Chen Chen Gou, and Jian Bo Zhou. "Analysis of the output torque of a superconducting torquer for drift test." In 2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD). IEEE, 2015. http://dx.doi.org/10.1109/asemd.2015.7453651.

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Zhou, Quanbao, and John Houldcroft. "Cold engine cranking torque requirement analysis." In JSAE/SAE International Fuels & Lubricants Meeting. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2007. http://dx.doi.org/10.4271/2007-01-1967.

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Yoo, Jae Gu, and Delbert Tesar. "Torque Saturation Analysis in Electromechanical Motor." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60424.

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This paper describes the torque and magnetic flux analysis using an advanced dynamic dynamometer test bed for electromechanical motors. Test motor was tested under different levels of continuous loads and high bandwidth complex duty cycle loads in order to provide data to characterize the nonlinear properties of electric motors. The test bed to obtain torque saturation limit data is comprised of a servo motor which serves as a dynamic load emulator, a brake, a clutch, and full sensor array for comprehensive monitoring of test variables, (including magnetic flux density sensor). The magnetic flux test was conducted to discriminate magnetic saturation from torque saturation. Given the permanent magnet motor test system designed for a desired saturation limit, it is possible to predict saturation using a properly defined dynamic duty cycle norm as a function of the operating conditions and the actuator design parameters. In this paper, the temperature effects on the magnetic properties of the permanent magnet material were the principal objectives.
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Fuengwarodsakul, Nisai, Jens Fiedler, and Rik De Doncker. "Analysis of Torque Dynamics for Switched Reluctance Drives with Instantaneous Torque Control." In Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting. IEEE, 2006. http://dx.doi.org/10.1109/ias.2006.256812.

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Reports on the topic "Torque analysis":

1

Chang, Leyen S. Analysis of vortex-induced counter torque and fin pressure on a finned body of revolution. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/876244.

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Jiang, Yuxiang. Unsettled Technology Areas in Electric Propulsion Systems. SAE International, May 2021. http://dx.doi.org/10.4271/epr2021012.

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Electric vehicle (EV) transmission technology—crucial for battery electric vehicles (BEVs) and hybrid electric vehicles (HEVs)—is developing quickly and customers want good performance at a low cost. Single-speed gearboxes are popular in electric drive systems due to their simple and cost-effective configuration. However, multispeed gearboxes are being taken to market due to their higher low-speed torque, dynamic performance, and energy efficiency. Unsettled Technology Areas in Electric Propulsion Systems reviews the economic drivers, existing techniques, and current challenges of EV transmission technology—including torque interruption during shifting; thermal and sealing issues; and noise, vibration, and harshness (NVH). This report discusses the pros and cons for both single-speed and multispeed gearboxes with numerical analysis.
3

Author, Not Given. Protocol Development & Detection of Marker DNA Extracted from Thread, Extracted from Thread II, Extracted from Holograms, and Extracted from Torque Seal, and DNA Template & Thread Analysis Report. Office of Scientific and Technical Information (OSTI), March 2008. http://dx.doi.org/10.2172/942158.

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Drive modelling and performance estimation of IPM motor using SVPWM and Six-step Control Strategy. SAE International, April 2021. http://dx.doi.org/10.4271/2021-01-0775.

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This paper presents a comprehensive evaluation of the performance of an interior permanent magnet (IPM) traction motor drive, and analyses the impact of different modulation techniques. The most widely used modulation methods in traction motor drives are Space vector modulation (SVPWM), over-modulation, and six-step modulation have been implemented. A two-dimensional electromagnetic finite element model of the motor is co-simulated with a dynamic model of a field-oriented control (FOC) circuit. For accurate tuning of the current controllers, extended complex vector synchronous frame current regulators are employed. The DC-link voltage utilization, harmonics in the output waveforms, torque ripple, iron losses, and AC copper losses are calculated and compared with sinusoidal excitation. Overall, it is concluded that the selection of modulation technique is related to the operating condition and motor speed, and a smooth transition between different modulation techniques is essential to achieve a better performance.

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