Relevant bibliographies by topics / Torque increase

Contents

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

Academic literature on the topic 'Torque increase'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Torque increase.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Torque increase"

1

Okazaki, Yoshimitsu, Emiko Hayakawa, Kazumasa Tanahashi, and Jun Mori. "Mechanical Performance of Metallic Bone Screws Evaluated Using Bone Models." Materials 13, no. 21 (October 29, 2020): 4836. http://dx.doi.org/10.3390/ma13214836.

Full text
Abstract:
To evaluate mechanical performance properties of various types of cortical bone screw, cancellous bone screw, and locking bolt, we conducted torsional breaking and durability tests, screw driving torque tests into bone models, and screw pullout tests (crosshead speed: 10 mm/min) after driving torque tests. The 2° proof and rupture torques of a screw, which were estimated from torque versus rotational angle curves, increased with increasing core diameter of the screw. The durability limit of metallic screws obtained by four-point bending durability tests increased with increasing core diameter. The compressive, tensile, and shear strengths of the bone models used for the mechanical testing of orthopedic devices increased with increasing density of the bone model. The strength and modulus obtained for solid rigid polyurethane foam (SRPF) and cellular rigid polyurethane foam (CRPF) lay on the same straight line. Among the three strengths, the rate of increase in compressive strength with the increase in density was the highest. The maximum torque obtained by screw driving torque tests for up to 8.3 rotations (3000°) into the bone models tended to increase with increasing core diameter. In particular, the maximum torque increased linearly with increasing effective surface area of the screw, as newly defined in this work. The maximum pullout load increased linearly with increasing number of rotations and mechanical strength of the bone model. Screws with low driving torque and high pullout load were considered to have excellent fixation and are a target for development.
APA, Harvard, Vancouver, ISO, and other styles
2

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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
3

Khorsandi, Farzaneh, and Paul D. Ayers. "The Effect of Friction on Actuation Torques of Foldable Rollover Protective Structures." Journal of Agricultural Safety and Health 24, no. 4 (2018): 227–42. http://dx.doi.org/10.13031/jash.12844.

Full text
Abstract:
Abstract. The number of fatal tractor rollover accidents with an inoperative foldable rollover protective structure (FROPS) has increased sharply in recent years. Operators frequently leave the FROPS in the folded-down position after lowering the FROPS to pass a low overhead obstacle. One possible explanation for leaving the FROPS in the folded position is that raising and lowering the FROPS is a time-consuming and strenuous process. The actuation torques required to raise and lower a FROPS are not well known and may be influenced by friction. The actuation torques of ten FROPS from four different models were measured. One model FROPS was tested on seven different vehicles, and three models were tested separately. The dynamic and static (initiation and holding) actuation torques were measured to evaluate the effect of static and kinetic friction on actuation torque. The dynamic actuation torques were measured before and after greasing the FROPS. The proposed instruction to measure the actuation torque based on OECD Code 7 was evaluated. Results showed that friction has a significant effect on the measured actuation torque and can increase the actuation torque by up to 212%. The friction varies between FROPS of the same model, which is due to variations in the manufacturing, maintenance, and age of the FROPS. The friction force could be decreased by greasing the FROPS, and decreasing the friction increased the lowering resisting torques and decreased raising torques of FROPS. The measured actuation torque based on OECD Code 7 instruction (static holding) is not a constant value. The dynamic method is recommended for measuring FROPS actuation torques. Keywords: Actuating torque, Foldable rollover protective structure, FROPS, Safety, Standards, Tractor.
APA, Harvard, Vancouver, ISO, and other styles
4

Pesqueira, E. I. O., Cristiano Stefano Mucsi, and Jesualdo Luiz Rossi. "Influence of the Geometric Characteristics of the Mini-Implants on Mechanicals Properties Using Artificial Bone Similar to Anterior, Middle and Posterior Regions of the Jaws." Materials Science Forum 930 (September 2018): 276–82. http://dx.doi.org/10.4028/www.scientific.net/msf.930.276.

Full text
Abstract:
The objective of this study was to identify the best torque of insertion and removal of mini-implants with a twin screw design (compact and self-drilling) into artificial bones with density and trabecular thickness, similar to anterior, middle and posterior regions of the jaws. Observation of the mini-implants surface using electron microscopy was performed before and after the tests. The torque values obtained during the insertion and removal was measured by digital torque wrench. The analyzed results led to the conclusion that the insertion and removal torques were larger with increase in bone density and cortical thickness. The design of the threads of the mini-implants influenced the insertion torque. Threads with smaller pitch increased the value of insertion torque. The anterior bone drilling installation reduces the insertion torque independent of bone density. Torque increased mainly by increasing the bone density and not necessarily with increased cortical thickness suggesting that the bone density of the trabecular bone must be considered in designing the installation of mini-implants.
APA, Harvard, Vancouver, ISO, and other styles
5

Eidietis, L., T. L. Forrester, and P. W. Webb. "Relative abilities to correct rolling disturbances of three morphologically different fish." Canadian Journal of Zoology 80, no. 12 (December 1, 2002): 2156–63. http://dx.doi.org/10.1139/z02-203.

Full text
Abstract:
Responses of three fish species were measured following the addition of neutrally buoyant weight-float combinations that increased rolling instability. The three species were creek chub, Semotilus atromaculatus, largemouth bass, Micropterus salmoides, and bluegill, Lepomis macrochirus. Ability to correct posture was predicted to increase with fin size and body depth in the order creek chub < largemouth bass < bluegill. In a 90-s period, the least added torque causing fish to roll to 90° in response to disturbances, ΔT90, and the least added torque making fish unable to recover from rolling, ΔTcrit, were measured as limits of ability to correct postural disturbances. Contrary to expectations, creek chub required a 58% increase in body torque to reach ΔT90, significantly larger than the 11% increase for largemouth bass and 19% increase for bluegill. Similarly, ΔTcrit was a 78% increase in body torque for creek chub, 43% for largemouth bass, and 34% for bluegill. Increased rolling torques resulted in behaviors reducing and avoiding rolling, including tilting, which reduces metacentric height, inverted swimming, which stabilizes fish, and contacting surfaces, which generates static forces. The superior ability of creek chub to correct postural disturbances may be explained by a fin arrangement that facilitates interactions with the ground.
APA, Harvard, Vancouver, ISO, and other styles
6

Sharke, Paul. "Torque Take Off." Mechanical Engineering 122, no. 10 (October 1, 2000): 58–61. http://dx.doi.org/10.1115/1.2000-oct-1.

Full text
Abstract:
This article focuses on that helicopters often display a rotor torque reading on their instrument panels to tell pilots how close they are flying to transmission design limits. With no measure of torque, a limit based on engine power is necessarily conservative. Torque monitors can increase a helicopter’s time between overhauls. Mechanical resonance, it seems, developed when the two engines were operated at matched torques. The torque meter lets the pilot split the torque to the two engines by 2 percent, diminishing any resonance. Permitted speculation, the Siemens researchers observed applications for their instrument beyond the traditional realm of torque measurement. In automotive applications, for instance, the researchers envision their torque measurement system one day being used in car engines to provide data in real time to the engine controls.
APA, Harvard, Vancouver, ISO, and other styles
7

Yoon, Sung Ho, and Young Eun Hwang. "Sealing performance test for V-insert clamp applicable to automobile exhaust pipes." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 227, no. 10 (January 8, 2013): 2228–35. http://dx.doi.org/10.1177/0954406212473410.

Full text
Abstract:
The sealing performance of V-insert clamp used in automobile exhaust pipes was examined for various applied torques by a specially designed pneumatic testing system. Axial clamping forces of V-insert clamp were evaluated through a clamping performance test. In the clamping performance test, increase in the torque showed gradual increase in the axial clamping force for all gaps between exhaust pipes that were considered. Slight increase in the torque resulted in relatively high axial clamping force. In the sealing performance test, when applied pressure was 50 kPa, the leak was not present in all applied torques due to no pressure change as a function of time. For 100 kPa, the leak was observed for applied torques of 3 N-m and lower. When V-insert clamp was used to join the pipes together, at least the applied torque of 4 N-m was needed in order for V-insert clamp to effectively function in the exhaustion system. Therefore, it can be concluded that V-insert clamp showed sufficient sealing performance to support the applied pressure of up to 100 kPa within the exhaustion system when relatively high torque was applied.
APA, Harvard, Vancouver, ISO, and other styles
8

KAKUCHI, Miyuki, Masahiro KUSAKA, Masaaki KIMURA, and Koichi KAIZU. "Study on Torque Increase in Magnetic Drive Torque Actuator Using FEM Analysis." Proceedings of Conference of Kansai Branch 2018.93 (2018): P006. http://dx.doi.org/10.1299/jsmekansai.2018.93.p006.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Sidaway, Ben, and Amy (Robinson) Trzaska. "Can Mental Practice Increase Ankle Dorsiflexor Torque?" Physical Therapy 85, no. 10 (October 1, 2005): 1053–60. http://dx.doi.org/10.1093/ptj/85.10.1053.

Full text
Abstract:
Abstract Background and Purpose. Mental practice has been shown to be effective in increasing the force production of the abductor digiti minimi muscle in the hand. The aim of this study was to determine whether mental practice could produce strength gains in the larger ankle dorsiflexor muscles, which are important during walking. Subjects. Twenty-four subjects were randomly assigned to a physical practice group, a mental practice group, or a control group (8 subjects per group). Methods. In the practice groups, subjects either physically or mentally practiced producing maximal isometric contractions for 3 sets of 10 repetitions, 3 times per week for 4 weeks. Changes in mean peak isometric torque normalized to body weight and the resulting percentage of improvement were analyzed across the 3 groups. Results. Differences in raw torque production after training in the 2 practice groups resulted in significant percentages of improvement for the physical practice group (25.28%) and the mental practice group (17.13%), but not for the control group (−1.77%). The 2 practice groups were not statistically different in their maximal torque-generating capacity after training. Discussion and Conclusion. These findings show that mental practice in people without impairments can lead to an increase in torque production similar to that produced by physical practice. Such a technique may prove to be a useful adjunct to traditional treatment options aimed at increasing muscle strength.
APA, Harvard, Vancouver, ISO, and other styles
10

Okubo, Hiroki, and Mont Hubbard. "Analysis of Arm Joint Torques at Ball-Release for Set and Jump Shots in Basketball." Proceedings 49, no. 1 (June 15, 2020): 4. http://dx.doi.org/10.3390/proceedings2020049004.

Full text
Abstract:
A kinetic model of the shooting arms has estimated arm joint torques for one-hand set- and jump-shots in basketball. The dynamic model has three rigid planar links with rotational joints imitating an upper arm, forearm and hand with shoulder, elbow and wrist joints. In general shots controlled by hand, forearm and upper arm motions, there are many torque combinations of shoulder, elbow and wrist joints to produce shooters’ desired ball-release speed, angle and backspin angular velocity. The minimum of the sum of squares of the torque combinations exists at ball-release, when the release angular velocities of the hand and forearm are equal, and the release angular accelerations of the hand and forearm are also equal. Each torque of the shooting arm joints for the set-shot with upward shoulder speed is smaller than that for the jump-shot. Shoulder, elbow and wrist torques increase in proportion to horizontal shot distances. As release backspin angular speed increases, each of the shoulder, elbow and wrist torques also increases. The torques of the shoulder, elbow and hand affect the horizontal shot distance and the ball-release backspin.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Torque increase"

1

Losey, Bradley. "Analysis of Magnetic Gear End-Effects to Increase Torque and Reduce Computation Time." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1595514209192582.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Závodník, Michal. "Návrh sportovních vaček pro motocyklový motor." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231762.

Full text
Abstract:
The master thesis contains a theoretical part with the topic of valve train. It contains measured data and their processing. The processed data are used to create the 1D engine’s simulation. Valve train’s parameters were modified for increased power and torque. Contained two variants of changes can serve as guide for final draft because of next adjustments.
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Torque increase"

1

Dritev – Drivetrain For Vehicles 2018. VDI Verlag, 2018. http://dx.doi.org/10.51202/9783181023280.

Full text
Abstract:
Die Dritev 2018, ein internationaler VDI Kongress, der es in sich hat: 3 Veranstaltungen an 2 Tagen! Neben der „Drivetrain for Vehicles“ fanden auch noch die „EDrive“ sowie die „Transmission in mobile machines“ statt. … und hier in diesem Band erhalten Sie alle Vorträge und Präsentationen. Inhalt (Auszüge): AT/DCT The all-new 8-speed AT for the Opel Grandland X 1 G. Bednarek, K. Geratz, Opel Automobile GmbH, Rüsselsheim, H. Chariou, Groupe PSA, La Garenne Colombes, France The new BMW automatic transmission – Challenges in development 11 M. Roßhuber, G. Schromm, K. Kranz, BMW AG, München Third Generation of ZF’s 8-speed automatic transmission – Reducing CO2 emissions in the 8HP transmission 23 C. Sibla, A. Donges, F. Jauch, ZF Friedrichshafen AG, Friedrichshafen Enhancement of a dual clutch transmission kit – AUDI S tronic – Version for All-Wheel Drive, Increase of Torque and HV Electrification 33 A. Schmidt, H.-P. Fleischm...
APA, Harvard, Vancouver, ISO, and other styles
2

International Conference on Gears 2017. VDI Verlag, 2017. http://dx.doi.org/10.51202/9783181022948.

Full text
Abstract:
Talking about the design of modern high-performance power train applications, one of the essential components to focus on are the gears. Gears convert torque and speed in a very wide power range, at low cost and with minimal losses and noise emission. However, the demands regarding cost, power density, NVH-behavior and efficiency are steadily increasing. Demands, which can only be met using modern gearing technologies that allow combining individual materials, heat treatment and manufacturing processes. Particularly in the industrial sector, the requirements for the reliability and service life of the gear units have increased. Therefore, more and more accurate calculation methods are required for the load bearing capacity, life expectancy and failure probability as well as better test methods. This aspect is also becoming more important with regard to Industry 4.0 and Predictive Maintenance. In addition, the potentials of innovative production methods like powder metal sintering, plas...
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Torque increase"

1

Kumar, Sagar, Saurabh Kumar, and Sarthak Lakra. "Design and Fabrication of Planetary Transmission System and Simulating Torque Vectoring on Rear-Wheel Drive Vehicle to Increase Lateral Maneuverability." In Lecture Notes in Mechanical Engineering, 675–93. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9678-0_58.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Migaud, Jérôme, Vincent Raimbault, Haitham Mezher, David Chalet, and Thomas Grandin. "A New Fast Method Combining Testing and Gas Exchange Simulations Applied to an Innovative Product Aimed to Increase Low-End Torque on Highly Downsized Engines." In Proceedings, 242–60. Wiesbaden: Springer Fachmedien Wiesbaden, 2018. http://dx.doi.org/10.1007/978-3-658-23775-2_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Haithem Lazreg, Mohamed, and Abderrahim Bentaallah. "Improved Direct Torque Control Based on Neural Network of the Double-Star Induction Machine Using Deferent Multilevel Inverter." In Direct Torque Control Strategies of Electrical Machines [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.89877.

Full text
Abstract:
In this chapter, we will compare the performance of a multilevel direct torque control (DTC) control for the double-star induction machine (DSIM) based on artificial neural network (ANN). The application of DTC control brings a very interesting solution to the problems of robustness and dynamics. However, this control has some disadvantages such as variable switching frequency, size, and complexity of the switching tables and the strong ripple torque. A solution to this problem is to increase the output voltage level of the inverter and associate the DTC control with modern control techniques such as artificial neural networks. Theoretical elements and simulation results are presented and discussed. As results, the flux and torque ripple of the five-level DTC-ANN control significantly reduces compared to the flux and torque ripple of the three-level DTC-ANN control. By viewing the simulation results using MATLAB/Simulink for both controls, the results obtained showed a very satisfactory behavior of this machine.
APA, Harvard, Vancouver, ISO, and other styles
4

Schmidt, A., and H. P. Fleischmann. "Enhancement of a dual clutch transmission kit – AUDI S tronic – Version for All-Wheel Drive, Increase of Torque and HV Electrification." In Dritev – Drivetrain For Vehicles 2018, I—33—I—48. VDI Verlag, 2018. http://dx.doi.org/10.51202/9783181023280-i-33.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Harrison, David. "Analysis of the Mechanisms for Compensation in Clock B." In Harrison Decoded, 149–74. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198816812.003.0010.

Full text
Abstract:
This chapter assesses the design requirements of the grasshopper escapement, the pendulum and suspension spring to provide compensation for changing density and viscosity of the air surrounding the pendulum and changing escapement torque. It assesses the key components of the Harrison system: a pendulum bob of modest mass; a pendulum operating at a large running arc; and the grasshopper escapement’s increased torque delivery, ability to run without lubrication, its composers that allow fine adjustment to the torques delivered before and after the escaping arcs are reached and the importance of the thickness of the suspension spring that runs within circular cheeks. It also compares the system to the traditional pendulum clock design that traditionally employs a pendulum with a large mass and high-quality factor—high Q. Furthermore, it discusses Harrison’s stipulation that the pendulum needed to slightly reduce its length when warm.
APA, Harvard, Vancouver, ISO, and other styles
6

Mattei, Eugenio, Giovanni Calcagnini, Michele Triventi, Federica Censi, Pietro Bartolini, Wolfgang Kainz, and Howard Bassen. "MRI Induced Heating on Pacemaker Leads." In Encyclopedia of Healthcare Information Systems, 950–57. IGI Global, 2008. http://dx.doi.org/10.4018/978-1-59904-889-5.ch117.

Full text
Abstract:
Magnetic resonance imaging (MRI) is a widely accepted tool for the diagnosis of a variety of disease states. The presence of a metallic implant, such as a cardiac pacemaker (PM), or the use of conductive structures in interventional therapy, such as guide wires or catheters, are currently considered a strong contraindication to MRI (Kanal, Borgstede, Barkovich, Bell, Bradley, Etheridge, Felmlee, Froelich, Hayden, Kaminski, Lester, Scoumis, Zaremba, & Zinninger, 2002; Niehaus & Tebbenjohanns, 2001; Shellock & Crues, 2002). Potential effects of MRI on PMs’ implantable cardioverter defibrillator (ICDs) include: force and torque effects on the PM (Luechinger, Duru, Scheidegger, Boesiger, & Candinas, 2001; Shellock, Tkach, Ruggieri, & Masaryk, 2003); undefined reed-switch state within the static magnetic field (Luechinger, Duru, Zeijlemaker, Scheidegger, Boesiger, & Candinas, 2002); potential risk of heart stimulation and inappropriate pacing (Erlebacher, Cahill, Pannizzo, & Knowles, 1986; Hayes, Holmes, & Gray, 1987); and heating effects at the lead tip (Achenbach, Moshage, Diem, Bieberle, Schibgilla, & Bachmann, 1997; Luechinger, Zeijlemaker, Pedersen, Mortensen, Falk, Duru, Candinas, & Boesiger, 2005; Sommer, Vahlhaus, Lauck, von Smekal, Reinke, Hofer, Block, Traber, Schneider, Gieseke, Jung, & Schild, 2000). In particular, most of the publications dealing with novel MRI techniques on patients with implanted linear conductive structures (Atalar, Kraitchman, Carkhuff, Lesho, Ocali, Solaiyappan, Guttman, & Charles, 1998; Baker, Tkach, Nyenhuis, Phillips, Shellock, Gonzalez-Martinez, & Rezai, 2004; Nitz, Oppelt, Renz, Manke, Lenhart, & Link, 2001) point out that the presence of these structures may produce an increase in power deposition around the wire or the catheter. Unfortunately, this increased local specific absorption rate (SAR) is potentially harmful to the patient, due to an excessive temperature increase which can bring living tissues to necrosis. The most direct way to get a measure of the SAR deposition along the wire is by using a temperature probe: the use of fluoroptic® thermometry to measure temperature has become “state-of-the-art,” and is the industry standard in this field (Shellock, 1992; Wickersheim et al., 1987). When the investigation involves small objects and large spatial temperature gradients, the measurement of the temperature increase and of the local SAR may become inaccurate, unless several precautions are taken. It seems obvious to: (1) evaluate the error associated with temperature increase and SAR measurements; (2) define a standard protocol for probe positioning, which minimizes the error associated with temperature measurement.
APA, Harvard, Vancouver, ISO, and other styles
7

Mitchell, Graham. "The Skeleton of Giraffes." In How Giraffes Work, 342–81. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197571194.003.0015.

Full text
Abstract:
The giraffe skeleton consists of ~170 bones. The dry mass of the skeleton is 70 g.kg-1 body mass. The average chemical composition of their bones is 33% minerals (mainly calcium and phosphorus in a ratio of 2:1), 34% collagen, and 33% water. The skull contributes ~10%, the vertebrae ~25% and the limb bones ~65% to skeleton mass. The average density of all bones is 1.6 g cm-3, ranging from 0.8 g cm-3 (cervical vertebrae) to 2.0 g cm-3 (limb bones). Resistance to fracture by vertebrae depends on their cross-sectional area, and is greatest in cervical and the first few thoracic vertebrae. Resistance to fracture by limb bones depends on wall thickness (the difference between inner and outer diameter), which is uniquely thick. The growth of all limb bones except the humerus follows a geometric pattern (length and diameter increase at the same rate) which confers resistance to compression stress. The humerus follows an elastic pattern (diameter increases faster than length) a pattern that resists bending stress. Giraffes bones are exceptionally straight which further reduces bending stresses. The torque generated by the mass of the head and neck is resisted by the ligamentum nuchae which is exceptionally well-developed in giraffes, extends from the lumbar vertebrae to the occipital crest, can have a diameter of ~10 cm, and can support loads of ~1.8 tonnes before rupturing. As a giraffe grows muscle cross-sectional area (and contraction strength) declines and the duty factor reduces, both of which reduce the risk of fracture.
APA, Harvard, Vancouver, ISO, and other styles
8

P. O’Brien, Conor. "Leading Wrist Injuries in a Golfing Population. Golf Swing Biomechanics a Significant Cause of Pathology." In Recent Advances in Sport Science [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96979.

Full text
Abstract:
Golf participation has increased significantly over the past 50 years. Injury rates have mirrored this increase with amateur and elite golfers suffering a similar injury incidence to rugby players. The upper limb is the second most common anatomical site of injury in this population. Wrist injury and specifically the ulnar side of the leading wrist is the most prevalent. Leading wrist injuries affect the tendons, fibrocartilage, bones and neural structures that are located on the ulnar side of the wrist and hand as well as the soft tissue aponeurosis and bony and ligamentous canals that traverse the wrist joint. The most commonly injured lateral wrist structure is the Extensor Carpi Ulnaris tendon. This is particularly liable to injury due to the forces placed on it during the golf swing. Other structures on the medial side of the leading wrist associated with golf related injury and pathology include Triangular Fibro-cartilage, the hamate bone, the bony canals through which the nerves travel, as well as the flexor aponeurosis and Flexor Carpi Ulnaris tendon. Risk injury to the medial aspect of the leading wrist is increased by the newer golfing theories and techniques which endeavour to create increase golf club head speeds by storing greater energy by a phenomenon called “lag”. Lag results in greater speed as the club head releases at impact but results in injury to the medial wrist anatomical structures. Swing biomechanics, and their alteration and augmentation are a major factor in medial wrist injury. Diagnosis of these pathologies requires careful history and examination, as well as the use of radiology and electrodiagnostic medicine to confirm the pathology and degree. Treatment is targeted to the specific disability. Classical treatments are mostly employed and usually involve rest and anti-inflammatory treatments. Newer therapies such as Platelet Rich Plasma injection and Deep Oscillation therapy have proven beneficial. Splinting is often employed on return to play. Early diagnosis and cessation of the offending activity often allays the need for surgery. The rhyme that “minutes to diagnosis means weeks to recovery” is particularly apt for medial wrist golf injuries. Surgery will be required in long standing or chronic cases. Return to play, unlike many sports injuries, will require careful golf biomechanical assessment and alteration in swing dynamics. The objective of this chapter is to identify how the new biomechanical manipulation of the wrist and specifically the leading wrist has resulted in increased injuries to this anatomical structure. The type of injury, diagnosis and treatment is discussed in detail. Club head speed is generated through a combination of improved golf club equipment, golf payer fitness and manipulation of the golf club by the left wrist resulting in increased golf club lag and torque which all contribute to wrist injuries.
APA, Harvard, Vancouver, ISO, and other styles
9

Balto, Simon. "Negro Distrust of the Police Increased." In Occupied Territory, 26–55. University of North Carolina Press, 2019. http://dx.doi.org/10.5149/northcarolina/9781469649597.003.0003.

Full text
Abstract:
The first chapter opens with scenes from Chicago’s Red Summer race riot in July of 1919. It explores the cascade of white violence that characterized the riot, as well as the armed self-defense that Blacks deployed in response. It also tracks the ways in which both police brutality and police neglect were features of how Black Chicagoans experienced the Chicago Police Department during those awful summer days in which thirty-eight Chicagoans in total were killed. From there, it shifts in the 1920s, when segregation in Chicago became more rigid, and explores how police corruption and political corruption worked hand in hand to shape the city’s Prohibition decade. It documents how politicians especially used the police department to their advantage, in particular by variously allowing vice operators to set up shop in less politically influential Black neighborhoods, and subsequently cracking down on low-level vice offenses by Black people. It also explores the long reach of police torture of civilians in 1920s Chicago.
APA, Harvard, Vancouver, ISO, and other styles
10

Bibik, Olena, and Oleksandr Popovich. "INCREASING THE EFFICIENCY OF ELECTRIC DRIVES WITH PERIODICAL LOADING BY USING COMPREHENSIVE MATHEMATICAL MODELING MEANS." In Priority areas for development of scientific research: domestic and foreign experience. Publishing House “Baltija Publishing”, 2021. http://dx.doi.org/10.30525/978-9934-26-049-0-31.

Full text
Abstract:
The mode of operation of induction motors (IMs) affects their performance. In most cases, motors are optimally designed for steady state operation. When operating in other modes, additional attention is required to the problems of energy efficiency. Induction motors are the most common type of electromechanical energy converters, and a significant part of them operate under conditions of periodic changes in the load torque. The work is devoted to solving the problem of increasing the energy efficiency of asynchronous motors of electromechanical systems with a periodic load, including pumping and compressor equipment. The traditional solution to this problem for compressor equipment is the optimal design of an IM under static conditions, as well as the use of flywheels, the use of an IM with an increased slip value and controlled IM with a squirrel-cage rotor and with frequency converters. In this work, the modes of operation of asynchronous motors with periodic loading are investigated. For this, complex mathematical models are developed in the simulation system. Such models are effective in modeling taking into account periodic load changes: repetitive transient processes, their possible asymmetry and non-sinusoidality, increased influence of nonlinearity of electromagnetic parameters. In complex mathematical modeling, the mutual influence of the constituent parts of the electromechanical system is taken into account. Simulation allowed quantifying the deterioration in energy efficiency under intermittent loading, in comparison with static modes. Criteria for evaluating quasi-static modes have been developed and areas of critical decrease in efficiency have been determined. The paper proposes and demonstrates a methodology for solving this problem. For this purpose, tools have been created for the optimal design of asynchronous motors as part of electromechanical systems with periodic loading. These tools include: complex mathematical models of electromechanical systems with asynchronous motors with periodic load, mathematical tools for determining the parameters of quasi-steady-state modes, the methodology of optimal design based on the criterion of the maximum efficiency of processes under quasi-steady-state modes of operation. The possibilities, advantages and prospects of using the developed mathemati-cal apparatus for solving a number of problems to improve the efficiency of electric drives of compressor and pumping equipment are demonstrated. It is shown that by taking into account quasi-static processes, the use of complex mathematical models for the optimal design of asynchronous motors with a periodic load provides an in-crease in efficiency up to 8 ... 10%, relative to the indicators of motors that are de-signed without taking into account the quasi-static modes. The areas of intense quasi-steady-state modes are determined using the devel-oped criterion. In these areas, there is a critical decrease in efficiency compared to continuous load operation. A decrease in efficiency is associated with a decrease in the amount of kinetic energy of the rotating parts compared to the amount of electromagnetic energy. In connection with the development of a frequency-controlled asynchronous drive of mechanisms with a periodic load, the relevance of design taking into account the peculiarities of quasi-static has increased significantly. For example, a variable frequency drive of a refrigerator compressor or a heat pump can increase energy efficiency up to 40%, but at low speeds, due to a decrease in kinetic energy, the efficiency can decrease to 10 ... 15%, unless a special design methodology is applied. This problem can be solved by using the complex mathematical modeling tools developed in the article.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Torque increase"

1

Bacher, J., and G. Maier. "Actions to increase the cogging torque and effects of the increased cogging torque to permanent magnet DC motors." In 2005 IEEE 11th European Conference on Power Electronics and Applications. IEEE, 2005. http://dx.doi.org/10.1109/epe.2005.219535.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Mousavi, Seyed Mohammad Hossein, Seyed Sajjad Salehi Ghaleh Sefid, Seyed Mohsen Mirbagheri, and Seyed Ebrahim Salehi Ghaleh Sefid. "Reduction of torque ripple and increase of torque capacity of BLDC motor." In 2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES). IEEE, 2012. http://dx.doi.org/10.1109/pedes.2012.6484303.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ericson, Tristan M., and Robert G. Parker. "Planetary Gear Modal Vibration Properties Torque Sensitivity." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-13678.

Full text
Abstract:
The effect of preload torque on planetary gear behavior is investigated with experiments and mathematical models. Natural frequencies, mode shapes, and damping are influenced by mean torque levels. Natural frequencies increase with greater torque. Damping increases in some modes and decreases in others. The mode shapes undergo various changes as torque increases as demonstrated in the trajectory of a planet gear in a high frequency mode. A finite element bearing model is used to obtain the load dependent stiffness of the planet bearings, and these values greatly increase the accuracy of a lumped parameter model in predicting the natural frequencies measured in experiments.
APA, Harvard, Vancouver, ISO, and other styles
4

Correia, Rana, and Gilberto Ramos. "THE POWER INCREASE AND MOTOR TORQUE OF GM 1.0 VHC WITH SUPERCHARGER." In 24th ABCM International Congress of Mechanical Engineering. ABCM, 2017. http://dx.doi.org/10.26678/abcm.cobem2017.cob17-2810.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Venturini, Marco, Alvise Zorzi, and MauriziO Mazzucchelli. "Torque/volume increase in Permanent Magnet Synchronous Motors by fill factor enhancement." In 2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM). IEEE, 2018. http://dx.doi.org/10.1109/speedam.2018.8445352.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Zhang, Xu, Guoqiang Zhang, Bo Wang, Yong Yu, Jing Zhang, and Dianguo Xu. "Maximum Torque Increase and Performance Optimization for Induction Motor Field-Weakening Control." In 2018 21st International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2018. http://dx.doi.org/10.23919/icems.2018.8548976.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Aradhye, O., and S. Bari. "Continuously Varying Exhaust Pipe Length and Diameter to Improve the Performance of a Naturally Aspirated SI Engine." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70638.

Full text
Abstract:
Wave tuning is a concept which increases the volumetric efficiency of a naturally aspirated engine by providing a scavenging effect to clear out residual gases and increase inflow of fresh charge. This paper analyses the effects of tuning pulsating sonic wave produced over a broad range of speeds in the exhaust manifold of a single cylinder 510 cc SI engine, on the power and torque of the engine. 1-D model of the engine is modeled using Ricardo Wave. The simulation results obtained through the parametric analysis are compared with the standard data provided by the engine testing. On average, 7% increase in torque and 6% increase in power are observed by continuously varying exhaust pipe length. While continuously varying exhaust pipe diameter, 6% increase in torque and power is observed. When combined together, the continuously varying exhaust pipe length and diameter produce 8.5% increased torque and 9% increased power, respectively.
APA, Harvard, Vancouver, ISO, and other styles
8

Huang, Shuguang, and Joseph M. Schimmels. "Design of a 2 DOF Prosthetic Ankle Using Coupled Compliance to Increase Ankle Torque." 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/detc2012-70409.

Full text
Abstract:
Current passive prosthetic ankles are lighter, simpler, and less expensive than powered prosthetic ankles. These current passive designs, however, do not provide adequate torque at the instant when it is needed to propel the body forward. This paper presents a novel 2 degree of freedom (DOF) passive compliant prosthetic ankle that uses a network of conventional springs. One DOF allows the lower leg component to compress when the weight of the amputee is applied during walking. The second DOF allows rotation about the prosthetic ankle joint. The force generated along the leg during walking is converted into ankle torque used to propel the body forward during push-off. An optimization routine is used to select the stiffness values and connection locations of the springs used in the compliant mechanism. The optimization yields a design that generates a torque-deflection profile that is very similar to that of a natural ankle. The mechanism demonstrates apparent active behavior (negative spring constant) at the ankle during push-off without using active components.
APA, Harvard, Vancouver, ISO, and other styles
9

Liu, Jiemin, Jintang Liu, and Toshiyuki Sawa. "Stress and Strength of Butt Circular Shaft With Metal Columns Subjected to Torques." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60042.

Full text
Abstract:
Stress analysis of the butt circular shaft with three uniformly distributed metal columns subjected to external torques are carried out by using three-dimensional finite element method. The loading capability of the butt circular shaft is measured. It was found that torque acting on the cross-section of adhesive layer is simultaneously withstood by the adhesive layer and the metal columns; The ratio of the torque withstood by metal columns to that withstood by adhesive layer increases with increase of the ratio of Young’s modulus of metal columns to that of the circular shaft; The metal columns enhance and improve the reliability of the joints; The strength of the butt adhesive circular shafts increases with increase of the ratio of the yield stress of the metal columns to that of circular shafts.
APA, Harvard, Vancouver, ISO, and other styles
10

Coelho, Silvio Luis Dantas, Newton Araujo, and Alexander Strube. "Development of an Improved 5 Speed Manual Transmission to Increase the Maximum Torque Capacity." In SAE Brasil 2003 Congress and Exhibit. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2003. http://dx.doi.org/10.4271/2003-01-3590.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Torque increase"

1

Dennis Schmitt and Daniel Olsen. Systematic Engine Uprate Technology Development and Deployment for Pipeline Compressor Engines through Increased Torque. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/890714.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Stoneking, M. R., N. E. Lanier, S. C. Prager, J. S. Sarff, and D. Sinitsyn. Fivefold confinement time increase in the Madison Symmetric Torus using inductive poloidal current drive. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/434481.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Torque increase' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography