Relevant bibliographies by topics / Generalised stiffness

Contents

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

Academic literature on the topic 'Generalised stiffness'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Generalised stiffness"

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Vanhaesebrouck, An, Nicholas Granger, and Laurent Garosi. "Extreme generalised muscular stiffness in young labrador retrievers: Fig 1." Veterinary Record 170, no. 6 (2012): 161.3–162. http://dx.doi.org/10.1136/vr.e946.

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Ibe, Uzochukwu, Sameerah Rehmani, Nasheena Jiwa, and Arjet Gega. "Return of the old guard: a case of tetanus in an unvaccinated patient." BMJ Case Reports 12, no. 6 (2019): e229502. http://dx.doi.org/10.1136/bcr-2019-229502.

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A 78-year-old woman with no known medical history presented with severe neck pain that began 4 days prior to admission located in the paraspinal cervical region radiating to the shoulders, legs and back. She had associated stiffness of her neck and progression of pain to her jaw and throat with progression to generalised body spasms with lower extremity stiffness and weakness that limited her ability to walk. She quickly developed dysphagia and odynophagia with subsequent generalised spasms and profound hypoxic respiratory failure requiring nasotracheal intubation. The presumptive diagnosis of
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Civera, Marco, Stefano Grivet-Talocia, Cecilia Surace, and Luca Zanotti Fragonara. "A generalised power-law formulation for the modelling of damping and stiffness nonlinearities." Mechanical Systems and Signal Processing 153 (May 2021): 107531. http://dx.doi.org/10.1016/j.ymssp.2020.107531.

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Russillo, Andrea Francesco, Giuseppe Failla, Ada Amendola, and Raimondo Luciano. "On the Free Vibrations of Non-Classically Damped Locally Resonant Metamaterial Plates." Nanomaterials 12, no. 3 (2022): 541. http://dx.doi.org/10.3390/nano12030541.

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In this paper, the focus is on the free vibrations of locally resonant metamaterial plates with viscously damped resonators. Upon formulating a dynamic-stiffness model where the resonators are represented via pertinent reaction forces depending on the deflections of the attachment points, the complex eigenvalues are calculated by a contour-integral algorithm introduced in the literature for general nonlinear eigenvalue problems. The interest in the proposed approach is twofold. The dynamic-stiffness model involves a limited number of generalised coordinates compared to the nodal degrees of fre
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Vinjam, Maruthi Ravi, Priya Shanmugarajan, and Helen Ford. "STIFF PERSON SYNDROME PRESENTING AS ‘STIFF EYES’." Journal of Neurology, Neurosurgery & Psychiatry 86, no. 11 (2015): e4.125-e4. http://dx.doi.org/10.1136/jnnp-2015-312379.36.

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A 47-year previously fit and well lady presented with 6 weeks history of generalised lethargy, weight loss and neck pain. Her examination revealed left supra-clavicular lymph nodes. Subsequent investigations revealed left grade 2 invasive ductal carcinoma of her left breast. This was treated with local excision.She presented to hospital four weeks following her surgery with progressive double vision and unsteadiness. Her cranial nerve examination showed severly restricted pursuit and saccadic horizontal eye movements with intact vertical eye movements. She had normal strength with intact deep
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Massamba, Victoria K., Denis Talbot, Alain Milot, et al. "Association between psychosocial work-related factors at midlife and arterial stiffness at older age in a prospective cohort of 1736 white-collar workers." BMJ Open 13, no. 9 (2023): e073649. http://dx.doi.org/10.1136/bmjopen-2023-073649.

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ObjectiveArterial stiffness and exposure to psychosocial work-related factors increase the risk of developing cardiovascular disease. However, little is known about the relationship between psychosocial work-related factors and arterial stiffness. We aimed to examine this relationship.DesignProspective cohort study.SettingPublic organisations in Quebec City, Canada.ParticipantsThe study included 1736 white-collar workers (women 52%) from 19 public organisations.Primary and secondary outcome measuresAssociation between psychosocial work-related factors from the job strain and effort–reward imba
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O'hEireamhoin, S., T. Bayer, and K. J. Mulhall. "Total Hip Arthroplasty in Mucopolysaccharidosis Type IH." Case Reports in Orthopedics 2011 (2011): 1–2. http://dx.doi.org/10.1155/2011/832439.

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Children affected by mucopolysaccharidosis (MPS) type IH (Hurler Syndrome), an autosomal recessive metabolic disorder, are known to experience a range of musculoskeletal manifestations including spinal abnormalities, hand abnormalities, generalised joint stiffness, genu valgum, and hip dysplasia and avascular necrosis. Enzyme therapy, in the form of bone marrow transplantation, significantly increases life expectancy but does not prevent the development of the associated musculoskeletal disorders. We present the case of a 23-year-old woman with a diagnosis of Hurler syndrome with a satisfactor
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Guo, Pan, Wen-Hua Wu, and Jun Zhao. "Modelling of Generalised Thermoelastic Wave Propagation of Multilayer Material under Thermal Shock Behaviour." Shock and Vibration 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/8398673.

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This paper describes a time-discontinuous Galerkin finite element method (DGFEM-βc) for the generalised thermoelastic problem of multilayer materials subjected to a transient high-frequency heat source. The governing and constitutive relations are presented on the basis of the well-known Lord–Shulman (L–S) theory. A DGFEM-βc method is developed to allow the general temperature-displacement vector and its temporal gradient to be discontinuous at a fixed time t. A stiffness proportional artificial damping term is added to the final DG discretisation form to filter out the spurious numerical osci
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Kovacic, Ivana. "Generalised perturbation techniques for strongly nonlinear oscillators with a positive, zero or negative linear stiffness term." International Journal of Dynamics and Control 3, no. 2 (2015): 137–47. http://dx.doi.org/10.1007/s40435-014-0147-9.

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Muratov, Kamil, Danil Likhachev, Roman Sokolov, Anna Chekhunova, Marina Osintseva, and Alexei Vaganov. "Influence of rope fastening on the spectrum of its natural transverse vibrations." Defektoskopiâ, no. 11 (November 11, 2024): 65–77. http://dx.doi.org/10.31857/s0130308224110062.

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According to the previously developed method, which takes into account the bending stiffness of steel ropes during their transverse oscillation, the ropes of the pedestrian bridge ‘Lovers’ in the city of Tyumen were investigated. The obtained values of tension forces and bending stiffness were within the expected range. The high variation of bending stiffness values forced to pay attention to the accuracy of the initial values of rope lengths, which were obtained from the photograph. To measure the rope lengths, a method of nodal harmonic registration was proposed, but the results obtained by
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Dissertations / Theses on the topic "Generalised stiffness"

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Maillou, Balbine. "Caractérisation et identification non-paramétrique des non-linéarités de suspensions de haut-parleurs." Thesis, Le Mans, 2015. http://www.theses.fr/2015LEMA1028.

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Ce travail de thèse porte sur le comportement mécanique en basses fréquences de l'équipage mobile du haut-parleur électrodynamique, et plus spécifiquement de ses suspensions. Les propriétés des suspensions sont difficiles à identifier du fait de l'assemblage géométrique mis en oeuvre et du fait des matériaux employés, à l'origine de comportements viscoélastiques non-linéaires. En régime linéaire, le modèle de Thiele et Small permet une bonne description du comportement du haut-parleur, l'équipage mobile étant modélisé par un système masse-ressort-amortissement linéaire. En régime non-linéaire,
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Dathe, Henning. "Der elastisch aufgehängte starre Körper." Doctoral thesis, 2001. http://hdl.handle.net/11858/00-1735-0000-0006-B41F-6.

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Books on the topic "Generalised stiffness"

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Shaibani, Aziz. Muscle Stiffness and Cramps. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199898152.003.0020.

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Muscle stiffness is a nonspecific term meaning limited muscle mobility that is not due to weakness. It is opposite to flexibility. Muscle and joint pain may be described as stiffness. Painful sustained muscle cramps are usually associated with muscle stiffness. A careful history is paramount. Exercise-induced muscle cramps are usually myopathic (metabolic or mitochondrial myopathy), while resting and nocturnal cramps are neurogenic (neuropathy, motor neuron disease, etc). Metabolic cramps are electrically silent. Focal or generalized stiffness is typically seen in stiff person syndrome. Upper
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Shaibani, Aziz. Muscle Stiffness and Cramps. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190661304.003.0020.

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Muscle stiffness as a nonspecific term means limited muscle mobility. Muscle and joint pain may be described as stiffness. Painful, sustained muscle cramps are usually associated with muscle stiffness. A careful history is paramount. Exercise-induced muscle cramps are usually myopathic (metabolic or mitochondrial myopathy) while resting, and nocturnal cramps are neurogenic [neuropathy, motor neuron disease (MND), etc.]. Metabolic cramps are electrically silent. Focal or generalized stiffness is typically seen in stiff person syndrome (SPS). Upper motor neuron (UMN) lesions are associated with
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Book chapters on the topic "Generalised stiffness"

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Molin, Lars. "Reduced Skin Stiffness by Grenz Ray Treatment in Generalized Morphea." In Rheumaderm. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4857-7_47.

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Cotchi Simbo Muela, Henrique, Mujimbi José Viana, António Gerson Bastos Francisco, Isaura da Conceição Almeida Lopes, and Valeria Aparecida Costa-Hong. "The Effect of Dietary Sodium Restriction on Vascular Stiffness in Hypertension." In Innovative Bioanalysis [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.93090.

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Increased salt consumption is believed to induce high blood pressure (BP)-mediated organ damage, although it is not yet clear whether it reflects a generalized micro- and macrovascular malfunction independent of BP. Exceeding dietary sodium intake is acknowledged to be the main modifiable environmental risk factor for cardiovascular events that accounts for an increase in blood pressure and induces hypertension (HTN)-related target organ damage. Arterial stiffness is well known as an independent cardiovascular risk factor, and sodium intake may be a determinant of arterial stiffness. Even so,
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Elishakoff, Isaac, and Yongjian Ren. "Element-level flexibility-based FEM for stochastic structures." In Finite Element Methods for Structures with Large Stochastic Variations. Oxford University PressOxford, 2003. http://dx.doi.org/10.1093/oso/9780198526315.003.0007.

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Abstract In Chapters 3 and 5 we proposed two non-perturbative FEMs for stochastic structures, namely the exact inverse based FEM for simple stochastic structures and the variational principle based FEM for stochastic beams. These two approaches encounter difficulties when they are generalized as a widely applicable tool for two-or three-dimensional structures. This chapter presents an element-level flexibility-based FEM for stochastic problems. The unconventional step in the new formulation is to divide the element-level finite element equilibrium equation by the element stiffness so that the
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Wallace, Daniel J., and Janice Brock Wallace. "Generalized Complaints." In All About Fibromyalgia. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195147537.003.0015.

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Fibromyalgia is a syndrome rather than a disease, and as such has a variety of features. Any part of the body can be involved, especially when fibromyalgia is induced or aggravated by multiple factors. This chapter will review some of the generalized complaints expressed by fibromyalgia patients and place them in perspective. One of the major problems fibromyalgia sufferers encounter is difficulty communicating how they really feel. Complaints can be subjective and hard to verify or quantify. They consist of symptoms, or expressions of what is bothersome, and signs. Physical signs are observed
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Bird, Howard. "Hypermobility." In Oxford Medical Publications Soft Tissue Rheumatology. Oxford University PressNew York, NY, 2004. http://dx.doi.org/10.1093/oso/9780192630933.003.0041.

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Abstract Articular hypermobility, perhaps better termed joint hyperlaxity, describes the possession by an individual of a joint or joints with a much wider range of movement than average. A single joint or many joints may be so affected. The term does not define aetiology since many factors contribute to a wide range of movement at a joint and several may contribute. The threshold at which the syndrome can be defined remains the subject of debate, not least because the range of movement at a given joint displays a Gaussian distribution in a population. The cut-off point above which generalized
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Yang Yunming. "Application of an Implicit and Explicit Integration Rules." In Information Technology in Geo-Engineering. IOS Press, 2010. https://doi.org/10.3233/978-1-60750-617-1-607.

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This paper concerns the application of the generalized trapezoidal implicit integration rule and the automatic substepping explicit integration rule. By varying the value of α, the generalized trapezoidal rule (e.g Δϵp=λ[(1−α)Rn+αRn+1]) represents a few commonly used integration schemes. It is applied to an advanced bounding surface type of sand model. Its performance including convergence and integration accuracy, with various values of α, is investigated by using both consistent and continuum t
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"Lever Linkages in Mechanical Oscillatory Systems." In Structural Mathematical Modeling Applications in Technological Machines and Transportation Vehicles. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-7237-8.ch005.

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The chapter displays various forms and possibilities of lever interactions in the system of connections of typical elementary links. Elastic links in lever connections formed by devices for converting movements are considered. Systems with two and three lever connections of the second kind are considered. A new approach has been developed to assess the possibilities of sequential connection of typical elements in structural interpretations of vibration protection systems. A method for determining the reduced stiffness is presented, taking into account the introduction of devices with motion tr
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Kanoun, Mohammed Benali, and Souraya Goumri-Said. "Theoretical Assessment of the Mechanical, Electronic, and Vibrational Properties of the Paramagnetic Insulating Cerium Dioxide and Investigation of Intrinsic Defects." In Handbook of Research on Nanoscience, Nanotechnology, and Advanced Materials. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-5824-0.ch017.

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First-principles calculations are performed by taking into account the strong correlation effects on ceria. To obtain an accurate description including f electrons, the authors optimized the Coulomb U parameter for use in Local-Density Approximation (LDA) and Generalized Gradient Approximation (GGA) calculation. A good agreement with experimental data is obtained within the GGA+U (Wu-Cohen scheme). Elastic stiffness constants are found in correct agreement with the available experimental results. Born effective charge, dielectric permittivity, and the phonon-dispersion curves are computed usin
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Ranjan, Madhu, and Balaji Singh N Badal. "A CLINICAL STUDY TO EVALUATE THE EFFICACY OF SADYO VIRECHANA AND VAITARANA BASTI AS YOGA BASTI SCHEDULE IN AMAVATA W.S.R TO RHEUMATOID ARTHRITIS." In Futuristic Trends in Medical Sciences Volume 3 Book 16. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bdms16p1ch6.

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Rheumatoid arthritis is second most common joint disorder. About 0.7% of world population is affected by RA. Females are three times more affected than male. It is a chronic inflammatory Auto Immune joint disease, characterized by pain, swelling, tenderness and painful limitation of movements. Generalized stiffness may occur but morning stiffness lasting more than one hour is a characteristic feature. Amavata can be correlated with Rheumatoid Arthritis due to same presentation of disease. Asthi and Sandhi are the chief site for the manifestation of cardinal symptoms like Sandhishoola, Shandhis
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Rahman N. and Budkowska B.B. "Distributed parameter sensitivity of piles in nonlinear sand subjected to cyclic bending moment." In Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2005. https://doi.org/10.3233/978-1-61499-656-9-2165.

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The paper presents the formulation and numerical investigations of the sensitivity of maximum lateral deflection of a long pile embedded in p-y sand below the water table subjected to cyclic loading. The bending moment Mpof discrete variability is applied to the pile head. The cyclicity of the pile-soil system is tackled in a quasi-static fashion. The parameters involved in the p-y soil relationship as well as the pile bending stiffness are considered as the design variables of a continuous type. The system is analysed in the scope of variational calculus based on the virtual work principle. T
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Conference papers on the topic "Generalised stiffness"

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Dhadwal, Manoj, and Sung Jung. "Generalized Multifield Variational Sectional Analysis of Composite Blades Considering Nonuniform Torsion." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11550.

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A finite element (FE) cross-sectional analysis is developed based on the Reissner's multifield variational principle to model the three-dimensional (3D) warping displacements and sectional stresses. The classical elastic couplings are taken into account along with the rigorous treatment of nonclassical couplings due to nonuniform torsional warping. The in- and out-of-plane warping displacements, and sectional stresses are approximated as linear functions of generalized sectional stress resultants at the global level, and using FE shape functions at the local sectional level. A generalized Timo
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Kantzidis, Paul, Nils Böhnisch, Pierangelo Masarati, and Vincenzo Muscarello. "About the Stabilizing Effect of the Torque on Propeller Whirl Flutter." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1178.

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This paper investigates the role of the aerodynamic torque on propeller whirl flutter stability. The generalized force due to the torque is first computed and subsequently included in the equations of motion of a rigid propeller-pylon system. Preliminary evaluations indicate that the torque modifies the real part of the backward and forward modes, providing a stabilizing effect on powered propellers. Analyses are conducted on a 3-bladed propeller driven by an electric motor. Stability predictions are obtained with a simple analytical model and validated by multibody simulations coupled with a
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Vázquez-Del Mercado, M., A. Llamas Garcia, A. Coldivar-Gabriel, et al. "AB0610 Correlation between traditional cardiovascular risk indexes and arterial stiffness in patients with generalised lupus erythematosus." In Annual European Congress of Rheumatology, EULAR 2018, Amsterdam, 13–16 June 2018. BMJ Publishing Group Ltd and European League Against Rheumatism, 2018. http://dx.doi.org/10.1136/annrheumdis-2018-eular.7409.

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Treifi, Muhammad, and S. Olutunde Oyadiji. "Computations of SIFs for Non-Symmetric V-Notched Plates by the FFEM." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86585.

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The present paper further develops The Fractal-like Finite Element Method (FFEM) to compute the stress intensity factors (SIFs) for non-symmetrical configurations of sharp V-notched plates. The use of global interpolation functions (GIFs) in the FFEM significantly reduces the number of unknown variables (nodal displacements) in a singular region surrounding a singular point to a small set of generalised coordinates. The same exact analytical solutions of the notch tip asymptotic field derived for a symmetrical notch case can be used as GIFs when the notch is non-symmetrical. However, appropria
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Stringer, D. Blake, Amir Younan, Pradip N. Sheth, and Paul E. Allaire. "Generalized Stiffness Gear-Mesh Matrix Including EHD Stiffness." In ASME/STLE 2007 International Joint Tribology Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ijtc2007-44473.

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This paper presents a method to compute gear mesh stiffness based on the EHD behavior by combined finite element solution of the Reynolds Equation with the elastic contact model. It is shown that this solution requires iterative procedure to balance the computed pressure profile with the external nominal transmission load. This mesh stiffness is load dependent and therefore is a nonlinear phenomenon. The nominal stiffness value is utilized to model a full (12×12) gear mesh matrix for a linear dynamic model of rotor bearing systems including gears to evaluate system dynamics and coupling betwee
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Hora´cˇek, J., and J. G. Sˇvec. "Instability Boundaries of a Vocal Fold Modelled as a Flexibly Supported Rigid Body Vibrating in a Channel Conveying Fluid." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32199.

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A generalised leakage-flow induced vibration model for vibration onset of the vocal folds in the airflow is presented. Especially the influence of various physical properties of the vocal folds (e.g., their shape, adduction, mass and mass distribution) on the thresholds of instability is studied. A vibrating element with two-degrees-of-freedom (rotation and translation) placed on an elastic foundation and vibrating in the wall of a channel conveying air is used to approximate the vocal fold. The inviscid incompressible 1-D fluid flow theory is used. A generally defined shape of the vocal fold
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Aragh, Behnam, Wei Tan, and David Hughes. "Bio-inspired cellular nanocomposite shells: stability analysis." In UK Association for Computational Mechanics Conference 2024. Durham University, 2024. http://dx.doi.org/10.62512/conf.ukacm2024.036.

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The pressing global issues of climate change, sustainability, and energy efficiency spark an urgent demand for resilient lightweight structures. Consequently, porous cellular materials have emerged as a promising category of lightweight materials, capable of concurrently meeting various requirements, ranging from structural stiffness to thermal insulation. While the majority of metal foam studies focus on random porosity, recent research actively pursues economic multi-functionality through precise control of pore size and density. This approach draws inspiration from bio-inspired functionally
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Lueken, Markus, Steffen Leonhardt, and Berno J. E. Misgeld. "Generalized polynomial chaos-based estimation of human knee stiffness." In 2016 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems (MFI). IEEE, 2016. http://dx.doi.org/10.1109/mfi.2016.7849547.

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Rousseau, Rashique Iftekhar, Abdel-Hakim Bouzid, and Zijian Zhao. "Accurate Evaluation of Bolt and Clamped Members Stiffnesses Of Bolted Joints." In ASME 2021 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/pvp2021-61621.

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Abstract The axial stiffnesses of the bolt and clamped members of bolted joints are of great importance when considering their integrity and capacity to withstand external loads and resist relaxation due to creep. There are many techniques to calculate the stiffnesses of the joint elements using finite element (FE) modeling, but most of them are based on the displacement of nodes that are selected arbitrarily; therefore, leading to inaccurate values of joint stiffness. This work suggests a new method to estimate the stiffnesses of the bolt and clamped members using FE analysis and compares the
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Goldfarb, Michael, and Jie Wang. "Passive Stiffness Simulation With Rate-Independent Hysteresis." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0045.

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Abstract Dynamics and discretization in the haptic simulation of a pure stiffness can generate energetically active behavior in a theoretically passive element, and thus can lead to unstable behavior. The authors propose a physically-based approach to ensuring passive behavior in the haptic simulation of a stiffness by coupling a rate-independent hysteresis with the pure stiffness. The former is implemented in a simple causal form by incorporating a generalized Maxwell slip description of hysteresis. Experiments were conducted to compare the proposed approach to the simulation of a pure stiffn
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Reports on the topic "Generalised stiffness"

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Al-Qadi, Imad, Aravind Ramakrishnan, Zehui Zhu, et al. Optimized Hot-Mix Asphalt Lift Configuration for Performance. Illinois Center for Transportation, 2023. http://dx.doi.org/10.36501/0197-9191/23-006.

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Researchers conducted eight large-scale laboratory tests to assess the combined impact of hot-mix asphalt (HMA) overlay mix and thickness on its performance to control reflective cracking. Bonding efficiency, flexibility, and stiffness of the HMA mix as well as overlay thickness significantly affect an overlay’s performance against reflective cracking. Researchers developed a generalized 3D finite-element model to predict an overlay’s reflective cracking potential and generated a database of 128 cases. They also developed a data-driven surrogate model to predict reflective cracking potential t
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Hammad, Ali, and Mohamed Moustafa. Seismic Behavior of Special Concentric Braced Frames under Short- and Long-Duration Ground Motions. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2019. http://dx.doi.org/10.55461/zont9308.

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Over the past decade, several long-duration subduction earthquakes took place in different locations around the world, e.g., Chile in 2010, Japan in 2011, China in 2008, and Indonesia in 2004. Recent research has revealed that long-duration, large-magnitude earthquakes may occur along the Cascadia subduction zone of the Pacific Northwest Coast of the U.S. The duration of an earthquake often affects the response of structures. Current seismic design specifications mostly use response spectra to identify the hazard and do not consider duration effects. Thus, a comprehensive understanding of the
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