Готові списки джерел за темами / Mesoscale ball and socket joint

Добірка наукової літератури з теми "Mesoscale ball and socket joint"

Автор: Grafiati

Опубліковано: 6 вересня 2023

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Статті в журналах з теми "Mesoscale ball and socket joint"

Pistoia, F., M. B. Ozonoff, and P. Wintz. "Ball-and-socket ankle joint." Skeletal Radiology 16, no. 6 (August 1987): 447–51. http://dx.doi.org/10.1007/bf00350538.

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Camp, Richard A., and Michael J. Callahan. "Ball-and-socket interphalangeal joint arthrodesis." Techniques in Orthopaedics 1, no. 2 (July 1986): 10–13. http://dx.doi.org/10.1097/00013611-198607000-00005.

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Ting, Kwun-Lon, and Jianmin Zhu. "On Realization of Spherical Joints In RSSR Mechanisms." Journal of Mechanical Design 127, no. 5 (December 4, 2004): 924–30. http://dx.doi.org/10.1115/1.1904641.

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A spherical joint must allow adequate mobility between the ball and socket. Unless the specific geometric requirement of the spherical joint, namely the trajectory of the ball stem in the socket, is known, the realization of a synthesized mechanism containing a spherical joint can become an endless trial and error process or even a fruitless attempt. Typical examples can be found in RSSR mechanisms. For a synthesized RSSR mechanism, this paper presents the closed form equation describing the spherical trajectory of the ball in the socket and the design and manufacturing issues of the spherical joints. It offers the classification scheme of spherical joints based on the required ball rotatability in the socket and shows how the necessary socket opening of the spherical joints is affected. The size and location of the socket in a spherical joint must be properly determined to meet the rotatability requirement and in many situations, a conventional spherical joint with a circular socket opening cannot be used. Essential geometric and location information regarding to the use of non-circular socket opening, spherical grooved pair, as well as revolute joints to replace the conventional spherical joints to realize a synthesized RSSR mechanism is presented. The proposed concept and method can be extrapolated to other mechanisms containing spherical joints.

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Guo, Jin, Jin-Huat Low, Jun Liu, Yangfan Li, Zhuangjian Liu, and Chen-Hua Yeow. "Three-Dimensional Printable Ball Joints with Variable Stiffness for Robotic Applications Based on Soft Pneumatic Elastomer Actuators." Polymers 14, no. 17 (August 29, 2022): 3542. http://dx.doi.org/10.3390/polym14173542.

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This paper contributes to a new design of the three-dimensional printable robotic ball joints capable of creating the controllable stiffness linkage between two robot links through pneumatic actuation. The variable stiffness ball joint consists of a soft pneumatic elastomer actuator, a support platform, an inner ball and a socket. The ball joint structure, including the inner ball and the socket, is three-dimensionally printed using polyamide−12 (PA12) by selective laser sintering (SLS) technology as an integral mechanism without the requirement of assembly. The SLS technology can make the ball joint have the advantages of low weight, simple structure, easy to miniaturize and good MRI compatibility. The support platform is designed as a friction-based braking component to increase the stiffness of the ball joint while withstanding the external loads. The soft pneumatic elastomer actuator is responsible for providing the pushing force for the support platform, thereby modulating the frictional force between the inner ball, the socket and the support platform. The most remarkable feature of the proposed variable stiffness design is that the ball joint has ‘zero’ stiffness when no pressurized air is supplied. In the natural state, the inner ball can be freely rotated and twist inside the socket. The proposed ball joint can be quickly stiffened to lock the current position and orientation of the inner ball relative to the socket when the pressurized air is supplied to the soft pneumatic elastomer actuator. The relationship between the stiffness of the ball joint and the input air pressure is investigated in both rotating and twisting directions. The finite element analysis is conducted to optimize the design of the support platform. The stiffness tests are conducted, demonstrating that a significant stiffness enhancement, up to approximately 508.11 N·mm reaction torque in the rotational direction and 571.93 N·mm reaction torque in the twisting direction at the pressure of 400 kPa, can be obtained. Multiple ball joints can be easily assembled to form a variable stiffness structure, in which each ball joint has a relative position and an independent stiffness. Additionally, the degrees of freedom (DOF) of the ball joint can be readily restricted to build the single-DOF or two-DOFs variable stiffness joints for different robotic applications.

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Lewis, John S., and James K. DeOrio. "The Adult Ball-and-Socket Ankle Joint." Foot & Ankle Specialist 8, no. 2 (September 8, 2014): 112–18. http://dx.doi.org/10.1177/1938640014548321.

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Stanisˇic´, M. M., and K. C. Gupta. "Closed-Form Solutions to the Spherical Joint Attachment Problem." Journal of Mechanical Design 114, no. 2 (June 1, 1992): 269–73. http://dx.doi.org/10.1115/1.2916942.

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This paper presents closed-form solutions to the problem of defining the attachment of a spherical joint (a ball and socket) in a spatial linkage. The defined attachment should minimize the opening angle of the socket, maximizing the ball retention capability. Previous solutions to this problem have used iterative searching techniques, which are computationally intense. In this paper the problem is reformulated as a surface fitting problem. Two formulations are presented, both of which require the solution of the associated eigenvalue problems. The eigenvectors correspond to the central axis of symmetry for the socket opening. A numerical example is presented to compare the results obtained by these formulations with those available in the literature.

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Stanisˇic´, M. M., and W. F. Mirusky. "Optimization of Spherical Joint Attachment in Spatial Linkages." Journal of Mechanisms, Transmissions, and Automation in Design 110, no. 4 (December 1, 1988): 440–45. http://dx.doi.org/10.1115/1.3258942.

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This paper presents the kinematic analysis and optimization technique required for the optimal attachment of a spherical joint (i.e., a ball in a socket) to the ground pivoted link of an RSSR spatial four-bar linkage. The optimization technique is a searching algorithm, which can be applied to the problem of optimal spherical joint attachment in other types of spatial linkages as well. This attachment optimization is necessary if the socket of the joint is to have its maximum ball retention capability. The optimization technique is illustrated by an example.

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Wang, A., A. Essner, and R. Klein. "Effect of contact stress on friction and wear of ultra-high molecular weight polyethylene in total hip replacement." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 215, no. 2 (February 1, 2001): 133–39. http://dx.doi.org/10.1243/0954411011533698.

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This paper studies the effect of contact stress on friction and wear of ultra-high molecular weight polyethylene (UHMWPE) acetabular cups by means of friction and wear joint simulator testing under serum lubrication. For a given applied load, increasing the contact stress by increasing the ball/socket radial clearance decreased both the coefficient of friction and the wear rate. Friction and wear were highly correlated. The dependence of friction on contact stress for the UHMWPE socket under serum lubrication was similar to that of semi-crystalline polymers under dry sliding. This finding indicates the occurrence of partial dry contact at asperity levels for the metal-polyethylene ball-in-socket joint under serum lubrication.

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Cho, Se Hyun, Duk Yong Lee, and Hee Joong Kang. "Congenital Ball - and - Socket Ankle Joint: A Case Report." Journal of the Korean Orthopaedic Association 20, no. 1 (1985): 201. http://dx.doi.org/10.4055/jkoa.1985.20.1.201.

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DENNIS, DOUGLAS A., MACK L. CLAYTON, and DONALD C. FERLIC. "Osteoarthritis Associated with a Ball-and-Socket Ankle Joint." Clinical Orthopaedics and Related Research &NA;, no. 215 (February 1987): 196???200. http://dx.doi.org/10.1097/00003086-198702000-00028.

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Більше джерел

Дисертації з теми "Mesoscale ball and socket joint"

LiVolsi, Catherine(Catherine A. ). "Lubrication in the ball and socket joint of a swash plate mechanism." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/128976.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, September, 2020
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (page 57).
The tribology of the ball and socket on the connecting rod in a swash plate engine is studied in the hydrodynamic regime. The engine operates at 1390rpm with an axial load on the rod as high as 1 x 10⁴N. The instantaneous load and kinematics from a previous study for a swash plate engine was used as the input. The ball and socket were assumed to be smooth surfaces. Starting with Reynolds' equation in spherical coordinates, the pressure was solved for and integrated over the surface area of the socket to calculate the force exerted on the rod. This force was matched to the input load force by adjusting the ball-socket clearance using a search algorithm provided by the software MATLAB. The calculation proceeded until the minimum clearance point approached the oil hole; the oil hole did not support the pressure so that hydrodynamic lubrication failed. Then, the dissipated friction power due to hydrodynamic shear was calculated over the range of crank angles where hydrodynamic lubrication applied. Results show that the dissipated power is essentially negligible. The frictional coefficient is on the order of 1 x 10⁻⁴. As the minimum clearance point approaches the oil hole, the clearance between the ball and socket comes within the asperity of the surfaces and there is a presence of boundary lubrication, which is outside the scope of the present study.
by Catherine LiVolsi.
S.M.
S.M. Massachusetts Institute of Technology, Department of Mechanical Engineering

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Stoppe, Thomas, Matthias Bornitz, Nikoloz Lasurashvili, Kirsten Sauer, Thomas Zahnert, Karim Zaoui, and Thomas Beleites. "Function, Applicability, and Properties of a Novel Flexible Total Ossicular Replacement Prosthesis With a Silicone Coated Ball and Socket Joint." Lippincott Williams & Wilkins, 2018. https://tud.qucosa.de/id/qucosa%3A72673.

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Eine totale Mittelohr-Prothese (TORP) mit einem mit Silikon ummantelten Kugelgelenk ist in der Lage Druckveränderungen zu kompensieren und somit eine bessere Schallübertragung, im Vergleich zu starren Prothesen, zu erzielen. Die Ergebnisse können als vorläufig betrachtet werden, da diese experimentelle Studie sich auf eine von vielen verschiedenen möglichen Situationen der Tympanoplastik und eine damit verbundene kleine Stichprobengröße beschränkte. Dennoch sind die Ergebnisse mit der flexiblen TORP vielversprechend für die weitere Entwicklung.
A total ossicular replacement prosthesis (TORP) with a silicone coated ball and socket joint (BSJ) is able to compensate pressure changes and therefore provide better sound transmission compared with rigid prostheses. The findings may be considered preliminary as this experimental study was limited to just one of the many different possible situations of tympanoplasty and it involved a small sample size. Nevertheless, the results with the flexible TORP were promising and could encourage further investigations on such prostheses.

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Wei-RungLai and 賴韋戎. "The ball and socket implant of thumb carpometacarpal joint affects the muscle forces in lateral pinch." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/81339861438775773082.

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碩士
國立成功大學
生物醫學工程學系
101
Many daily activities are completed by hands such as writing, typing, using phone, etc. In these motions, thumb opposition is an important component. And the CMC joint of thumb provides the ability to do the opposition motion. But degeneration is often observed in CMC joint. It was reported that 6% of men between 55 to 64 years old were observed to have CMC degeneration, and 25% of postmenopausal women were observed to have osteoarthritis (OA) in CMC joint. Arthroplasty is necessary when severe degeneration of CMC joint was observed. The saddle type and ball-and-socket type implants are often selected in arthroplasty. But few studies compared the advantage of different types of implants. Therefore the purpose of this study is to compare these two types of CMC joints by observing the tendon forces and joint constraints. This study built up a model to simulate muscle forces of the thumb during pinching. This model was established by a customized program. The model was separated into two parts in which the CMC joints were saddle type and ball-and-socket type, respectively. There were three pinching positions, and there were two magnitudes of pinching force at each pinching position. The inputs were the relationship of bones (distal phalangeal, proximal phalangeal, metacarpal and trapezium) from CT image and pinching force measured from loadcell, and the outputs were tendon forces and joint constraints. The results showed the axial loadings in the group of ball-and-socket type of CMC joint were significant higher than those in the group of saddle type of CMC joint. The tendon force in APL also showed significant increasing in the group (ball-and-socket type of CMC joint). There were studies indicating that subsidence was often observed in ball-and-socket type implant, thus, the increasing of axial loading may explain this situation. In conclusion, the axial loading and muscle forces in the group of ball-and-socket type of CMC joint were higher than those in the group of saddle type of CMC joint.

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Частини книг з теми "Mesoscale ball and socket joint"

Hoang, Tai, Alona Kharchenko, Simon Trendel, and Rafael Hostettler. "Ball-and-Socket Joint Pose Estimation Using Magnetic Field." In Springer Proceedings in Advanced Robotics, 321–34. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-25555-7_22.

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Baerlocher, Paolo, and Ronan Boulic. "Parametrization and Range of Motion of the Ball-and-Socket Joint." In Deformable Avatars, 180–90. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-0-306-47002-8_16.

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Cai, Ding, Won-Sook Lee, Chris Joslin, and Paul Beaulé. "Rapid Impingement Detection System with Uniform Sampling for Ball-and-Socket Joint." In Recent Advances in the 3D Physiological Human, 179–92. London: Springer London, 2009. http://dx.doi.org/10.1007/978-1-84882-565-9_12.

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Suzuki, Katsuji, Kunio Shibata, Kanae Shigemori, Hirofusa Ichinose, and Tohru Tanaka. "Arthroplasty Using Ball-and-Socket Type Ceramic Prosthesis for the Osteoarthritis of the Trapeziometacarpal Joint of the Thumb." In Bioceramics 18, 1363–66. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-992-x.1363.

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O’Keeffe, Michael, Kiran Khursid, Peter L. Munk, and Mihra S. Taljanovic. "Glenohumeral Joint Trauma." In Musculoskeletal Imaging Volume 1, edited by Mihra S. Taljanovic and Tyson S. Chadaz, 52–57. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780190938161.003.0012.

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Chapter 12 discusses glenohumeral joint trauma. The shoulder is one of the most frequently dislocated joints in the body. The glenohumeral joint is ball and socket articulation between the humeral head and scapular glenoid. The humeral head is significantly larger than the glenoid fossa, which predisposes this joint to instability. Anterior shoulder dislocations are more common than those occurring posteriorly, and true inferior dislocations are rare. Bone injuries associated with anterior glenohumeral joint dislocations are the bony Bankart and Hill-Sachs lesions. The diagnosis of dislocation is made on radiographs. CT examination is useful in the evaluation of associated bone lesions and glenoid bone loss. Magnetic resonance arthrography (MRA) is the study of choice in the evaluation of associated glenolabral and rotator cuff injuries. Initial treatment is closed reduction with immobilization and subsequent physical therapy. Surgical treatment is indicated for complicated dislocations with instability.

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Omar, Imran M. "Internal Derangement of the Hip." In Musculoskeletal Imaging Volume 2, edited by Mihra S. Taljanovic, Imran M. Omar, Kevin B. Hoover, and Tyson S. Chadaz, 232–46. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780190938178.003.0108.

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Chapter 107 discusses the hip and its component tissues, including the bones, labrum, synovial tissues, muscles, and tendons, and covers the MRI appearances of many of the most common pathologies that occur in and around the hip joint. The hip is a ball-and-socket joint consisting of the femoral head and the cup-shaped acetabulum. Because of its shape, the hip allows multi-axial movements, including flexion/extension, abduction/adduction, and internal/external rotation. A number of supporting structures, including the acetabular labrum and joint capsule, surrounding muscles and tendons, and bursae, help stabilize the hip and allow for a smooth range of motion. Injuries to any of these structures can result in hip pain and loss of function. MRI has become the test of choice to assess hip internal derangement because of its superior assessment of soft tissues and bone marrow and its contrast resolution, which improves conspicuity of pathologic conditions.

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Mustafaev, Bekhzod, and Eung Soo Kim. "A Novel Method to Inspect 3D Ball Joint Socket Products Using 2D Convolutional Neural Network with Spatial and Channel Attention." In Which Factors Contribute to Innovative Performance? A Case Study Applied to the Food and Beverage Industry. Vide Leaf, Hyderabad, 2022. http://dx.doi.org/10.37247/pasens2ed.2.22.28.

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Bernard, F., C. Annarclli, J. Bert, J. Dupuy-Philon, J. Fornazero, and R. Cohen. "A ball-in-socket apparatus for the test of hip joint prosthesis. Influence of the third body on the friction behaviour." In Tribology Series, 161–70. Elsevier, 1996. http://dx.doi.org/10.1016/s0167-8922(08)70780-6.

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Тези доповідей конференцій з теми "Mesoscale ball and socket joint"

Liu, Wenzhi, Xiaoqin Li, Jianxin Wu, and Weilinag Tian. "Dynamics Analysis of Joint Ball-Socket Nozzle." In 2010 2nd International Workshop on Intelligent Systems and Applications (ISA). IEEE, 2010. http://dx.doi.org/10.1109/iwisa.2010.5473565.

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Cai, Ding, Won-Sook Lee, and Chris Joslin. "Rapid Ball-and-Socket Joint Collision Detection." In 2008 IEEE International Workshop on Medical Measurements and Applications (MeMeA). IEEE, 2008. http://dx.doi.org/10.1109/memea.2008.4542991.

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Guillard, Gwenael, and Nadia Magnenat-Thalmann. "Ball-and-socket joint motion description using spherical medial representation." In 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2007. http://dx.doi.org/10.1109/iembs.2007.4353285.

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Philetus Weller, Michael, Ellen Yi Luen Do, and Mark D. Gross. "An Optocoupled Poseable Ball and Socket Joint for Computationally Enhanced Construction Kits." In 2nd International ICST Conference on Robot Communication and Coordination. IEEE, 2009. http://dx.doi.org/10.4108/icst.robocomm2009.5824.

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Bt Mustaffa, Zahiraniza, Mohammed Badri Taufiq, and Thar M. Badri Albarody. "On the Specifications of Flexible Composite Ball Socket Joint Pipe Characterized by Barrel Shell Model." In OTC Brasil. Offshore Technology Conference, 2013. http://dx.doi.org/10.4043/24306-ms.

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Parga Villalpando, Carlos Roman, and Wen Yu Liu. "Design and modeling of a exoskeleton for the human shoulder simulating a ball and socket joint." In 2017 14th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE). IEEE, 2017. http://dx.doi.org/10.1109/iceee.2017.8108876.

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Wu, Lianjun, and Yonas Tadesse. "Musculoskeletal System for Bio-Inspired Robotic Systems Based on Ball and Socket Joints." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67394.

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Musculoskeletal system is the fundamental structure that allows complex mobility of biological systems. A lot of efforts have been made in the past to mimic this structure using synthetic materials for use in robotic systems. Development challenges for this technology include design and manufacturing, system integration, control methods and energy usage. One of the key elements of musculoskeletal system is artificial muscles or actuators used in this system. Actuators presented in the literature do not match the performance of natural muscles in most of the metrics such as force generation, strain output, frequency, power density, ease of control and repeatability. This paper briefly describes the recently introduced Twisted and Coiled Polymer (TCP) muscles integrated into a ball and socket joint made of ABS plus® material. The proposed structure consists of a class of ball-and-socket joint that incorporates TCP muscles and silicone to generate multidimensional actuation. Most traditional joint-and-actuator assemblies include passive rotary joints actuated by servomotors via gears transmission. Our proposed ABS based 3D printed joint is actuated by artificial muscles without any complex mechanical transmission system. In comparison with other such assemblies, the proposed joint system is a promising solution to the diverse applications in robotics, especially where soft actuators and cost effective solutions are needed.

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Marques, Filipe, Fernando Isaac, Nuno Dourado, António Pedro Souto, Paulo Flores, and Hamid M. Lankarani. "A Study on the Dynamics of Spatial Mechanisms With Frictional Spherical Clearance Joints." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59089.

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An investigation on the dynamic modeling and analysis of spatial mechanisms with spherical clearance joints including friction is presented. For this purpose, the ball and the socket which compose a spherical joint are modeled as two individual colliding components. The normal contact-impact forces that develop at the spherical clearance joint are determined by using a continuous force model. A continuous analysis approach is used here with a Hertzian based contact force model, which includes a dissipative term representing the energy dissipation during the contact process. The pseudo-penetration that occurs between the potential contact points of the ball and the socket surface, as well as the indentation rate play a crucial role in the evaluation of the normal contact forces. In addition, several different friction force models based on the Coulomb’s law are revisited in this work. The friction models utilized here can accommodate the various friction regimens and phenomena that take place at the contact interface between the ball and the socket. Both the normal and tangential contact forces are evaluated and included into the systems’ dynamics equation of motion, developed under the framework of multibody systems formulations. A spatial four bar mechanism, which includes a spherical joint with clearance, is used as an application example to examine and quantify the effects of various friction force models, clearance sizes, and the friction coefficients.

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Bajaj, Neil M., and Aaron M. Dollar. "Design of a Large Workspace Passive Spherical Joint via Contact Edge Design." In ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/detc2020-22753.

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Abstract This paper presents the design of a compact ball and socket type spherical joint that makes use of passive elements to increase the range of motion to greater than a hemisphere with infinite roll capacity. We discuss the limitations of typical spherical joints due to simple geometric considerations, and how the addition of redundancy, passive elements, and multiple contacting surfaces of differing geometry can increase the workspace of these joints. We discuss the relationship between kinematics, mechanical conditions (e.g. friction and contact forces) under quasistatic motion, and geometry required to achieve the increased range of motion. Furthermore, we provide a metric for assessing the viability or benefit of a potential design. Finally, we validate one of our designs with a physical prototype and demonstrate its achievable range of motion.

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Henninger, Heath B., Robert T. Burks, and Robert Z. Tashjian. "Biomechanics of Reverse Total Shoulder Arthroplasty." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14043.

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Reverse total shoulder arthroplasty (rTSA) provides significant pain relief and functional improvement in patients with a deficient rotator cuff, 4-part proximal humerus fracture, inflammatory arthritis or revision arthroplasty.[1, 2] As a non-anatomic procedure, rTSA transposes the ball and socket in the glenohumeral joint, allowing the deltoid to initiate elevation of the arm, provide stability and minimize shear forces acting at the glenoid surface.[3, 4]

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Звіти організацій з теми "Mesoscale ball and socket joint"

Wang, Li-Shang, and P. S. Krishnaprasad. Relative Equilibria for Two Rigid Bodies Connected by a Ball-in-Socket Joint. Fort Belvoir, VA: Defense Technical Information Center, January 1989. http://dx.doi.org/10.21236/ada454738.

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