Relevant bibliographies by topics / Helical spring

Contents

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

Academic literature on the topic 'Helical spring'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 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 'Helical spring.'

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 "Helical spring"

1

Muralidharan, M., R. Aravinth, J. Gafferkhan, and R. Gandhi. "Comparative Design and Analysis of Helical and Wave Spring." International Journal of Engineering & Technology 7, no. 3.34 (September 1, 2018): 353. http://dx.doi.org/10.14419/ijet.v7i3.34.19224.

Full text
Abstract:
This paper is a comparative between two springs such as helical and wave spring. Wave springs are precise flat wire compression springs that fit into assemblies that other springs cannot. These are used as an alternative spring for helical spring. Wave springs provide 50% reduction in spring height and axial space. They possess the same force and deflection as coil springs. They have reduced material requirements. They provide improved cost reduction. The Wave Spring has been subjected to Compression Test, Modal Analysis and Equivalent Elastic Strain Test and then compared to Helical Spring which again was subjected to the above same tests under the same conditions and parameters. The design of helical spring and wave spring has been done in CREO Parametric 4.0 and analysed in ANSYS R 18.1. The results are then compared.
APA, Harvard, Vancouver, ISO, and other styles
2

Khaykovich, Boris, Natalia Kozlova, Wonshik Choi, Aleksey Lomakin, Chintan Hossain, Yongjin Sung, Ramachandra R. Dasari, Michael S. Feld, and George B. Benedek. "Thickness–radius relationship and spring constants of cholesterol helical ribbons." Proceedings of the National Academy of Sciences 106, no. 37 (August 26, 2009): 15663–66. http://dx.doi.org/10.1073/pnas.0907795106.

Full text
Abstract:
Using quantitative phase microscopy, we have discovered a quadratic relationship between the radius R and the thickness t of helical ribbons that form spontaneously in multicomponent cholesterol–surfactant mixtures. These helical ribbons may serve as mesoscopic springs to measure or to exert forces on nanoscale biological objects. The spring constants of these helices depend on their submicroscopic thickness. The quadratic relationship (R ∝ t2) between radius and thickness is a consequence of the crystal structure of the ribbons and enables a determination of the spring constant of any of our helices solely in terms of its observable geometrical dimensions.
APA, Harvard, Vancouver, ISO, and other styles
3

WANG, Yuan, Qingchun WANG, and Zehao SU. "Numerical Studies on the Stiffness of Arc Elliptical Cross-section Helical Spring Subjected to Circumference Force." Mechanics 27, no. 4 (August 27, 2021): 327–34. http://dx.doi.org/10.5755/j02.mech.24907.

Full text
Abstract:
Due to its excellent properties, elliptical cross-section helical spring has been widely used in automobile industry, such as valve spring, arc spring used in Dual Mass Flywheel and so on. Existing stiffness formulae of helical spring remain to be tested, and stiffness property of elliptical cross-section arc spring has been little studied. Hence, study on the stiffness of elliptical cross-section helical spring is significant in the development of elliptical cross-section helical spring. This paper proposes a method to study the stiffness property of elliptical cross-section helical spring that the experiment design method is adopted with finite element analysis. Firstly, the finite element analysis method was used to verify the cylindrical (circular cross-section and elliptical cross-section) springs. Then, the regression formula was designed and derived compared with the reference springs’ stiffness formulae by experimental design. Last, regression formula was verified with existing experiment data. The novelty in this paper is that simulation technology of arc spring was investigated and a stiffness regression equation of arc elliptical cross-section spring was obtained using orthogonal regression design, with significance in wide use of the arc elliptical cross-section helical spring promotion.
APA, Harvard, Vancouver, ISO, and other styles
4

Razooqi, Ahmed Ibrahim, Hani Aziz Ameen, and Kadhim Mijbel Mashloosh. "Compression and impact characterization of helical and slotted cylinder springs." International Journal of Engineering & Technology 3, no. 2 (May 21, 2014): 268. http://dx.doi.org/10.14419/ijet.v3i2.2492.

Full text
Abstract:
Helical and slotted cylinder springs are indispensable elements in mechanical engineering. This paper investigates helical and slotted cylinder springs subjected to axial loads under static and dynamic conditions. The objective is to determine the stiffness of a circular cross-section helical coil compression spring and slotted cylinder springs with five sizes and dynamic characteristics. A theoretical and finite element models are developed and presented in order to describe the various steps undertaken to calculate the springs stiffnesses. Five cases of the springs geometric are presented. A finite element model was generated using ANSYS software and the stiffness matrix evaluated by applying a load along the springs axis, then calculating the corresponding changes in deformation. The stiffness is obtained by solving the changes of load and deformation. The natural frequencies, mode shapes and transient response of springs are also determined. Finally, a comparison of the stiffnesses are obtained using the theoretical methods and those obtained from the finite element analysis were made and good agreement are evident and it can be found that the stiffness of spring for the slotted cylinder spring is much larger than that for helical spring and the stiffness for slotted cylinder spring increases with the number of slots per section. Natural frequencies, mode shape and transient response of helical spring and slotted cylinder spring have been represented in ANSYS software and results have been compared and it found that the natural frequency has also increased in the same proportion of stiffness because the natural frequency is directly proportional to the stiffness for all the cases that have been studied. Keywords: ANSYS, Finite Element Analysis, Helical Spring, Slotted Cylinder Spring, Stiffness.
APA, Harvard, Vancouver, ISO, and other styles
5

Bagaria, William J., Ron Doerfler, and Leif Roschier. "Nomograms for the design of light weight hollow helical springs." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 23 (August 25, 2016): 4388–94. http://dx.doi.org/10.1177/0954406216665416.

Full text
Abstract:
The helical spring is a widely used element in suspension systems. Traditionally, the springs have been wound from solid round wire. Significant weight savings can be achieved by fabricating helical springs from hollow tubing. For suspension systems, weight savings result in significant transportation fuel savings. This paper uses previously published equations to calculate the maximum shear stress and deflection of the hollow helical spring. Since the equations are complex, solving them on a computer or spreadsheet would require a trial-and-error method. As a design aid to avoid this problem, this paper gives nomograms for the design of lightweight hollow helical springs. The nomograms are graphical solutions to the maximum stress and deflection equations. Example suspension spring designs show that significant weight savings (of the order of 50% or more) can be achieved using hollow springs. Hollow springs could also be used in extreme temperature situations. Heating or cooling fluids can be circulated through the hollow spring.
APA, Harvard, Vancouver, ISO, and other styles
6

Li, Xue Bin, Xiao Long Chen, and Jian Zhang. "The Research on Working Performance of Annular Valve Spring Based on Solidworks." Applied Mechanics and Materials 440 (October 2013): 171–76. http://dx.doi.org/10.4028/www.scientific.net/amm.440.171.

Full text
Abstract:
According to the problem of cylindrical helical compression springs deformation and fracture in the process of using. come up with a Solution that use conical helical spring instead of it, validate the improvement measure with relevant simulation and test analysis, draw a conclusion that the working performance of conical helical spring is better than the cylinder, this paper has some guiding effect on the selection of Annular valve spring.
APA, Harvard, Vancouver, ISO, and other styles
7

Jiang, W., W. K. Jones, T. L. Wang, and K. H. Wu. "Free Vibration of Helical Springs." Journal of Applied Mechanics 58, no. 1 (March 1, 1991): 222–28. http://dx.doi.org/10.1115/1.2897154.

Full text
Abstract:
This paper presents a theoretical investigation of the coupled extensional-torsional vibration of helical springs. The study shows that two types of periodic wave will propagate through the spring, one characterizing the extensional-compressive deformation and the other one, the torsional deformation. The shapes of the individual waves are simple, but the oscillation of the spring is complex due to the interaction and superposition of the component waves.
APA, Harvard, Vancouver, ISO, and other styles
8

Kobelev, Vladimir. "Elastic–plastic deformation and residual stresses in helical springs." Multidiscipline Modeling in Materials and Structures 16, no. 3 (November 5, 2019): 448–75. http://dx.doi.org/10.1108/mmms-04-2019-0085.

Full text
Abstract:
Purpose The purpose of this paper is to develop the method for the calculation of residual stress and enduring deformation of helical springs. Design/methodology/approach For helical compression or tension springs, a spring wire is twisted. In the first case, the torsion of the straight bar with the circular cross-section is investigated, and, for derivations, the StVenant’s hypothesis is presumed. Analogously, for the torsion helical springs, the wire is in the state of flexure. In the second case, the bending of the straight bar with the rectangular cross-section is studied and the method is based on Bernoulli’s hypothesis. Findings For both cases (compression/tension of torsion helical spring), the closed-form solutions are based on the hyperbolic and on the Ramberg–Osgood material laws. Research limitations/implications The method is based on the deformational formulation of plasticity theory and common kinematic hypotheses. Practical implications The advantage of the discovered closed-form solutions is their applicability for the calculation of spring length or spring twist angle loss and residual stresses on the wire after the pre-setting process without the necessity of complicated finite-element solutions. Social implications The formulas are intended for practical evaluation of necessary parameters for optimal pre-setting processes of compression and torsion helical springs. Originality/value Because of the discovery of closed-form solutions and analytical formulas for the pre-setting process, the numerical analysis is not necessary. The analytical solution facilitates the proper evaluation of the plastic flow in torsion, compression and bending springs and improves the manufacturing of industrial components.
APA, Harvard, Vancouver, ISO, and other styles
9

Wang, Nan Nan, You Fu Hou, and Zu Zhi Tian. "Nonlinear Vibration Characteristics of Helical Spring." Applied Mechanics and Materials 29-32 (August 2010): 1317–22. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.1317.

Full text
Abstract:
A helical spring has large deformation under the condition of near resonance, in order to obtain the nonlinear vibration characteristics, the single-integral constitutive relations of helical spring based on nonlinear theory are discussed firstly, then nonlinear dynamic characteristics of helical spring are analyzed based on finite element technology. Finally, the dynamic simulation associated with flexible characteristics for helical spring is studied in ADAMS. The results show that the maximum stress of helical spring appears at transition region between different radius which is consistent with fracture position actually. Flexible dynamic response of helical spring mainly behaves low frequency vibration which is different from rigid body dynamics response.
APA, Harvard, Vancouver, ISO, and other styles
10

Li, Xiaoyong, Liang Liang, and Shijing Wu. "Analysis of mechanical behaviors of internal helically wound strand wires of stranded wire helical spring." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 232, no. 6 (March 7, 2017): 1009–19. http://dx.doi.org/10.1177/0954406217696517.

Full text
Abstract:
A stranded wire helical spring is a cylindrical helical spring, which is usually composed of an optional core wire and several layers of twisted external wires. The mechanical behavior of the internal helically wound strand wire is critical to determining the spring performance. Based on the previous studies of the mechanical properties of wire rope, a mathematical model to calculate the curvature of the helically wound strand wires, twist, and contact force among the adjacent wires of strand wires spring is established when the spring is subjected to axial load. The proposed kinematics is based on the assumption that there is no friction among the adjacent wires. Furthermore, a parametric study of factors influencing the curvature, twist, and contact force, such as the helix angle of spring and strand and deformation types, is committed for understanding of the mechanical characteristics of the helically wound strand wires with different geometric parameters. It is found that the curvature and twist are strongly dependent upon the two angles. Moreover, this study can provide significant reference for the design and manufacturing of the spring to control the contact force among external wires.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Helical spring"

1

Laing, Kara Louise. "Non-linear deformation of a helical spring." Thesis, University of East Anglia, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323220.

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

Durickovic, Bojan. "Waves on Elastic Rods and Helical Spring Problems." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/202750.

Full text
Abstract:
This work examines problems in the statics and traveling wave propagation on uniform elastic rods with constant curvature and torsion, i.e. a straight rod and a helical rod. The first set of problems concerns planar traveling loop-like waves on intrinsically straight rods. It is shown that loops with compact support can exist on homogeneous rods with a nonlinear constitutive relation, where the strain-energy density contains a quartic term. Next, the effect of heterogeneity in the material properties on the shape of the loop is examined using a homogenization method. The second set of problems deals with a system consisting of a helical spring with a force and a torque applied along the helix axis. First, an overview is presented of problems of finding the stresses given the strains, or vice-versa, assuming that the elastic parameters of the spring are known. Then, the inverse problem is examined, where both stresses and strains are measured, and optimal elastic parameters within the linear consitutive model are sought. Various forms of measured strains are considered. Finally, the special problem with zero axial torque is considered, and criteria when the spring overwinds with a tensile axial force applied are established.
APA, Harvard, Vancouver, ISO, and other styles
3

Porteiro, John L. "Spring Design Optimization With Fatigue." Scholar Commons, 2010. https://scholarcommons.usf.edu/etd/1742.

Full text
Abstract:
The purpose of this work is to look into the fundamental issues regarding spring design and develop a new, easy to use software program that would allow for optimal, flexible spring designs. Most commercial programs that address this function are basic and do not allow the designer much control over the variables hindering design. This is so because most programs start from the premise that the spring is a general purpose part of the system or that other design parameters can be altered to accommodate the chosen spring. In cases where this is not so, such as in hydraulic cartridge valves, where the geometric constraints are severe, spring design may be a cumbersome process. This is particularly true when fatigue life is taken into account. The solution chosen here is to tailor the software application to these particular design constraints, incorporating some ideas about spring optimization. In addition to this, a concerted effort was made to make the subject more accessible to the engineers using the program by automating the more technical aspects of the process allowing the designers to make intelligent decisions based on how the variables would affect design. To this end currently existing software was evaluated to determine where it was lacking and a new program was written and painstakingly tested. Finally, it was used to correct flaws identified in existing springs.
APA, Harvard, Vancouver, ISO, and other styles
4

Forrester, Merville Kenneth. "Stiffness Model of a Die Spring." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/32249.

Full text
Abstract:
The objective of this research is to determine the three-dimensional stiffness matrix of a rectangular cross-section helical coil compression spring. The stiffnesses of the spring are derived using strain energy methods and Castiglianoâ s second theorem. A theoretical model is developed and presented in order to describe the various steps undertaken to calculate the springâ s stiffnesses. The resulting stiffnesses take into account the bending moments, the twisting moments, and the transverse shear forces. In addition, the springâ s geometric form which includes the effects of pitch, curvature of wire and distortion due to normal and transverse forces are taken into consideration. Similar methods utilizing Castiglianoâ s second theorem and strain energy expressions were also used to derive equations for a circular cross-section spring. Their results are compared to the existing solutions and used to validate the equations derived for the rectangular cross-section helical coil compression spring. A finite element model was generated using IDEAS (Integrated Design Engineering Analysis Software) and the stiffness matrix evaluated by applying a unit load along the springâ s axis, then calculating the corresponding changes in deformation. The linear stiffness matrix is then obtained by solving the linear system of equations in changes of load and deformation. This stiffness matrix is a six by six matrix relating the load (three forces and three moments) to the deformations (three translations and three rotations). The natural frequencies and mode shapes of a mechanical system consisting of an Additional mass and the spring are also determined. Finally, a comparison of the stiffnesses derived using the analytical methods and those obtained from the finite element analysis was made and the results presented.
Master of Science
APA, Harvard, Vancouver, ISO, and other styles
5

Stebner, Aaron P. "Development, Characterization, and Application of Ni19.5Ti50.5Pd25Pt5 High-Temperature Shape Memory Alloy Helical Actuators." Akron, OH : University of Akron, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1194994008.

Full text
Abstract:
Thesis (M.S.)--University of Akron, Dept. of Mechanical Engineering, 2007.
"December, 2007." Title from electronic thesis title page (viewed 02/22/2008) Advisor, D. Dane Quinn; Co-Advisor, Graham Kelly; Department Chair, Celal Batur; Dean of the College, George K. Haritos; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.
APA, Harvard, Vancouver, ISO, and other styles
6

Williams, Eric Andrew. "The Development of Actuators for the Whole Skin Locomotion Robot." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/46786.

Full text
Abstract:
The Whole Skin Locomotion robot propels itself using a motion similar to the cytoplasmic streaming exhibited by an amoeba. In the robot there are embedded ring actuators which evert the material of the robot to produce forward motion. The robot benefits from a highly flexible exterior allowing it to squeeze into constricted passageways or collapsed structures. The development of actuators for such a motion is performed by a shape memory alloy composite actuator. Unlike a typical composite model which utilizes a homogenization of fiber and matrix properties our model is developed for line loads produced in individual shape memory alloy wires onto the rod structure. The load vectors are determined in the deformed configuration of the actuator to account for the highly deformed actuator profiles that would be seen in operation. Also the load requirements for such actuators are developed in terms of the constriction forces and functional design limits are established. In addition, a helical spring backbone design is considered and stiffness properties for general helical springs are determined. The contact of spring coils is included in the analysis and a coupled constitutive model is developed for the spring when coils are in contact. The static design of helical springs for use in the actuators is performed and deformation and load restrictions are determined for subsequent design efforts.
Ph. D.
APA, Harvard, Vancouver, ISO, and other styles
7

Nekoksa, Pavel. "Dosedy válcových šroubových tlačných pružin." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231942.

Full text
Abstract:
This diploma thesis deals with hot-formed helical compression springs. The first part of the thesis describes related problems and determines market potential. Following theoretical part describes the influence of contact line on behaviour of springs and compares it with normative regulations. Methods suitable for determination of helix shape are covered in the next part. The last part focuses on practical measurement, in which the change of helix shape during manufacture was observed. The main output of this diplomat thesis is suggestion of measures that should contribute to both optimization of manufacture and verification of FEM model.
APA, Harvard, Vancouver, ISO, and other styles
8

Hegana, Ashenafi B. "Low Temperature Waste Energy Harvesting by Shape Memory Alloy Actuator." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1461631046.

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

Silva, Rafael de Oliveira [UNESP]. "Atenuação de vibrações em sistemas que utilizam molas de liga de memória de forma." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150444.

Full text
Abstract:
Submitted by RAFAEL DE OLIVEIRA SILVA null (rafa_engemec@hotmail.com) on 2017-04-24T14:27:25Z No. of bitstreams: 1 dissertacao_final.pdf: 3521819 bytes, checksum: b08a60dcaa91691a2bf36a0cc59992e6 (MD5)
Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-04-26T13:27:52Z (GMT) No. of bitstreams: 1 silva_ro_me_ilha.pdf: 3521819 bytes, checksum: b08a60dcaa91691a2bf36a0cc59992e6 (MD5)
Made available in DSpace on 2017-04-26T13:27:52Z (GMT). No. of bitstreams: 1 silva_ro_me_ilha.pdf: 3521819 bytes, checksum: b08a60dcaa91691a2bf36a0cc59992e6 (MD5) Previous issue date: 2017-03-31
Diversos estudos relacionados à atenuação de vibrações utilizando materiais inteligentes vem sendo amplamente explorados no meio acadêmico. Neste âmbito, as Ligas de Memória de Forma (LMF) se destacam por apresentarem dissipação de energia vibratória devido ao seu comportamento histerético promovido pelo efeito pseudoelástico. No presente trabalho, dois sistemas com um e dois graus de liberdade, contendo mola helicoidal de LMF como elemento resiliente, são implementados numericamente para demonstrar a atenuação de vibrações ocasionada pelas transformações de fase presentes no material. Para cada um dos sistemas mecânicos investigados, dois modelos termomecânicos são confrontados numericamente visando a obtenção das características de cada modelo em representar a atenuação de vibrações dos sistemas submetidos à carregamentos termo-mecânicos. O trabalho termina comentando as potencialidades da proposta apresentada, discutindo as facilidades e dificuldades encontradas na sua implementação e apontando para o desenvolvimento de futuros estudos.
Several studies regarding the vibration attenuation using intelligent materials have been widely explored in the academic world in engineering. In this context, the shape memory alloys (SMAs) exhibit vibratory energy dissipation due to their hysteretic behavior caused by the pseudoelastic effect. In the present work, two systems with one and two degrees of freedom, containing a SMA helical spring as a resilient element, are numerically implemented to demonstrate the vibration attenuation of the system caused by the phase transformations present in the SMA spring. For each considered mechanical systems, two thermomechanical models are numerically confronted in order to obtain the characteristics of each model in representing the vibration attenuation of the systems submitted to thermo-mechanical loads. This work is concluded presenting the potentialities of the design methodology proposed and future developments to be implemented.
APA, Harvard, Vancouver, ISO, and other styles
10

Silva, Rafael de Oliveira. "Atenuação de vibrações em sistemas que utilizam molas de liga de memória de forma /." Ilha Solteira, 2017. http://hdl.handle.net/11449/150444.

Full text
Abstract:
Orientador: Gustavo Luiz Chagas Manhães de Abreu
Resumo: Diversos estudos relacionados à atenuação de vibrações utilizando materiais inteligentes vem sendo amplamente explorados no meio acadêmico. Neste âmbito, as Ligas de Memória de Forma (LMF) se destacam por apresentarem dissipação de energia vibratória devido ao seu comportamento histerético promovido pelo efeito pseudoelástico. No presente trabalho, dois sistemas com um e dois graus de liberdade, contendo mola helicoidal de LMF como elemento resiliente, são implementados numericamente para demonstrar a atenuação de vibrações ocasionada pelas transformações de fase presentes no material. Para cada um dos sistemas mecânicos investigados, dois modelos termomecânicos são confrontados numericamente visando a obtenção das características de cada modelo em representar a atenuação de vibrações dos sistemas submetidos à carregamentos termo-mecânicos. O trabalho termina comentando as potencialidades da proposta apresentada, discutindo as facilidades e dificuldades encontradas na sua implementação e apontando para o desenvolvimento de futuros estudos.
Mestre
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Helical spring"

1

Stredulinsky, David C. SPRING2: Helical compression spring geometry generator program manual. Dartmouth, N.S: Defence Research Establishment Atlantic, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Duo gu luo xuan tan huang. Beijing: Ke xue chu ban she, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Becker, Leif Eric. On the buckling of helical compression springs. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Stredulinsky, David C. Finite element modelling of helical compression springs. Dartmouth, N.S: Defence Research Establishment Atlantic, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Leech, Andrew R. A study of the deformation of helical springs under eccentric loading. Monterey, Calif: Naval Postgraduate School, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Chassie, Girma Gebre. On the buckling of helical springs under combined compression and torsion. Ottawa: National Library of Canada, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Causey, A. R. Irradiation-enhanced creep of cold-worked Zr-2.5Nb tubes and helical-springs. Chalk River, Ont: Reactor Materials Research Branch, Chalk River Laboratories, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Certain helical spring lockwashers from Taiwan: [investigation no. 731-TA-625 (final)]. Washington, DC: U.S. International Trade Commission, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Society of Automotive Engineers. Spring Committee. and Design and application of helical and spiral springs--SAE J795a., eds. Manual on design and application of helical and spiral springs--SAE HS 795: Report of the Spring Committee. 6th ed. Warrendale, PA: Society of Automotive Engineers, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Certain helical spring lockwashers from the People's Republic of China: [investigation no. 731-TA-624 (final)]. Washington, DC: U.S. International Trade Commission, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Helical spring"

1

Kobelev, Vladimir. "Failure Probability of Helical Spring." In Durability of Springs, 215–27. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-58478-2_9.

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

Sathish Gandhi, V. C., R. Kumaravelan, S. Ramesh, and M. Venkatesan. "Computational Study of Coil Helical Spring: Automobile Clutch." In Proceedings of 2nd International Conference on Intelligent Computing and Applications, 523–40. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1645-5_44.

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

Nirala, Akhileshwar, A. K. Richhariya, N. Kumar, V. K. Dwivedi, and Manohar Singh. "Modeling and Analysis of Composite Helical Compression Spring." In Proceedings of International Conference in Mechanical and Energy Technology, 787–95. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2647-3_74.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Musalli, Tarek Al, Tesfaye Kebede Ali, and Balasubramanian Esakki. "Fatigue Analysis of Helical Spring Subjected to Multi-axial Load." In Lecture Notes in Mechanical Engineering, 377–87. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6619-6_41.

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

Liu, Yijing, Ming Liu, and Minrong Zhao. "Robust Optimization Design for the Cylindrical Helical Spring Based on the Improved Particle Swarm Algorithm." In Proceedings of the Second International Conference on Mechatronics and Automatic Control, 953–60. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13707-0_104.

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

Yar, Matthew. "An Acoustic Study on the Dispersive Flexural Modes of Wave Propagation in a Helical Spring." In IRC-SET 2020, 281–93. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9472-4_24.

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

Lampart, Marek, and Jaroslav Zapoměl. "On Dynamics of an Electromechanical System Supported by Cylindrical Helical Spring Damped by an Impact Damper." In ISCS 2014: Interdisciplinary Symposium on Complex Systems, 173–82. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-10759-2_19.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Khurd, Sagar Namdev, Prasad P. Kulkarni, and S. D. Katekar. "New Design Approach of Helical Coil Spring for Longitudinal and Translational Invariance by Using Finite Element Analysis." In Techno-Societal 2016, 729–38. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-53556-2_75.

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

Kobelev, Vladimir. "Coiling of Helical Springs." In Durability of Springs, 161–79. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-59253-0_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kobelev, Vladimir. "“Equivalent Columns” for Helical Springs." In Durability of Springs, 45–73. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-58478-2_3.

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

Conference papers on the topic "Helical spring"

1

Gandham, Naresh Kumar, and Hong Zhou. "Synthesis of Concave Helical Compression Springs." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-50800.

Full text
Abstract:
Helical compression springs are used to resist compressive forces or store energy in push mode. They are found in many applications that include automotive, aerospace and medical devices. The common configuration of helical compression springs is straight cylindrical shape that has constant coil diameter, constant pitch and constant spring rate. Unlike cylindrical helical compression springs, concave helical compression springs have a larger diameter at each end and a smaller diameter in the middle of the spring. The variable coil diameter enables them to produce desired load deflection characteristics, reduce solid height, buckling and surging, and keep them centered on a larger diameter hole. The unique features of concave helical compression springs also raise their synthesis challenges. In this paper, a method is introduced to synthesize concave helical compression springs. The variable coil diameter of a concave helical compression spring is described by a spline curve. A cylinder with variable diameter is generated by revolving the spline curve on spring axis. The concave helical compression spring is then modeled by wrapping a spring wire on the variable diameter cylinder. The synthesis of a concave helical compression spring is systemized as the optimization of the geometric control parameters of its wrapped spring wire. A synthesis example is presented in the paper to verify the effectiveness and demonstrate the procedure of the introduced method.
APA, Harvard, Vancouver, ISO, and other styles
2

Mohammed, Riyaz, and Hong Zhou. "Synthesis of Variable-Diameter Helical Extension Springs." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66096.

Full text
Abstract:
Helical extension springs store energy and provide resistance to tensile loads that are applied through appropriate spring ends. Typical spring ends include different types of hooks or loops. Both ends of a helical extension spring are attached to other components. When the two components move apart and their distance is increased, the helical extension spring exerts a tensile force between the two components and tries to decrease their distance. There are various applications for helical extension springs that include automobiles, toys, hand tools, agriculture machines, textile machines, and medical devices. The common configuration of helical extension springs uses straight cylindrical shape that has constant coil diameter and pitch. Unlike regular helical extension springs, variable-diameter helical extension springs do not employ constant coil diameter. Their variable coil diameter enables them to produce desired force deformation relationships and reduce stress concentration. The distinctive features of variable-diameter helical extension springs also raise their synthesis challenges. To surmount these challenges, a method is introduced in this paper to model and design variable-diameter helical extension springs. The configuration of a synthesized spring is described by a composite parametric curve. The entire spring is defined by its control parameters. Synthesizing the spring is systematized as optimizing its control parameters. Examples on modeling, analyzing and designing springs are presented in the paper to demonstrate the procedure and verify the effectiveness of the introduced synthesis method.
APA, Harvard, Vancouver, ISO, and other styles
3

Metwalli, Sayed M., M. Alaa Radwan, and Abdel Aziz M. Elmeligy. "Optimization of Helical Compression and Tension Springs." In ASME 1993 Design Technical Conferences. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/detc1993-0423.

Full text
Abstract:
Abstract The primary objective of spring design is to obtain a spring which will do the required job and at the same time be the most economical for a given application. This means that the spring must fit into the available space and has a satisfactory life in service. The optimum springs would then have minimum weight, minimum length or minimum space. Various optimum values of wire diameter and spring index are obtained. These are evaluated in a closed form or utilizing iterative search techniques. The problem is formulated with and without the variation of the maximum shear stress with the wire diameter. The optimal parameters are also normalized and plotted.
APA, Harvard, Vancouver, ISO, and other styles
4

Junkin, Gary. "An Air-filled Circularly Polarized Monochromatic Multimode Helical Beam Antenna." In 2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring). IEEE, 2019. http://dx.doi.org/10.1109/piers-spring46901.2019.9017289.

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

Rashidi, Majid, Sachin P. Budhabhatti, and John L. Frater. "Dynamics of a Coulomb Damped Helical Spring: A Finite Element Approach." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59625.

Full text
Abstract:
This work presents the results of a mathematical modeling to study the dynamic behavior of a helical spring under a periodic excitation induced by a rotating cam. The spring is sleeved over a mandrel; thereby it is further subjected to a Coulomb damping force as it oscillates. Helical springs expand radially when they are compressed. The effect of this radial expansion is included in the mathematical model. Standard wave equation that includes variable Coulomb damping was used to examine the vibratory behavior of the spring. Numerical solution to the no-friction, constant-friction, and varying-friction forces were obtained from the wave equation, using Explicit Finite Difference method. Finite Element was used to model the radial expansion of the spring to determine the variations of the Coulomb friction force. The spring response to the prescribed cam excitation, under the variable Coulomb friction force, was found not to be significantly different from that of a previously assumed constant friction force, for the cases that were studied in this work. In case of postulating a variable damping force the residual vibrations of spring loops are slightly higher than of the constant damping force.
APA, Harvard, Vancouver, ISO, and other styles
6

Keller, Scott G., and Ali P. Gordon. "Stress Approximation Technique for Helical Compression Springs Subjected to Lateral Loading." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40948.

Full text
Abstract:
Helical compression springs are commonly used devices capable of storing kinetic energy. Typical applications vary in simplicity, ranging from low stress amplitudes and in favorable environments, e.g. ball point pen spring at room temperature, to millions of cycles in elevated temperatures, e.g. valve train spring in IC engines. Regardless of the load or environment, springs are able to use the intrinsic elasticity of the material and the initial geometry to resist plastic deformation, all while allowing for the transfer of load over various distances. Generally, these loads are parallel to the axis of the spring; however, as more complex designs arise, these uniaxial springs are gaining popularity in a variety of off-axis loading situations, e.g. flexible shaft couplings, invalidating traditional stress/strain equations. As such, equivalent stress and strain equations have been developed capable of fast, real-time calculations based upon visual inspection of the bent helix. Coupled with the initial dimensions and material of the spring, the state of equivalent stress/strain can be resolved at any position within the wire. Experiments were conducted on several off-the-shelf steel springs (conforming to ASTM A229), then compared to FEA and analytical solutions. Ultimately, it was observed that through an approximation of the bent helix, the equivalent stress and strain can be determined at any location within the wire, allowing for the approximation of life and crack initiation locations of the spring.
APA, Harvard, Vancouver, ISO, and other styles
7

Qin-man, Fan, Wu Yong-hai, Luan Kun, and Wang Feng. "Multi-objective Optimization Design of Automobile Suspension Helical Spring." In 2010 Third International Conference on Information and Computing Science (ICIC). IEEE, 2010. http://dx.doi.org/10.1109/icic.2010.62.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

LiuYong and Zhangsaifei. "The computer controlling detection system for cylindrically helical spring." In 2010 International Conference on Computer Application and System Modeling (ICCASM 2010). IEEE, 2010. http://dx.doi.org/10.1109/iccasm.2010.5622806.

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

João Ricardo Azanha Filho, Leandro Marques Viana, Carlos André Gomes Costa, and Claysson Bruno Santos Vimieiro. "REDESIGN OF AN HELICAL SPRING APPLIED TO AUTOMOTIVE SUSPENSION." In 23rd ABCM International Congress of Mechanical Engineering. Rio de Janeiro, Brazil: ABCM Brazilian Society of Mechanical Sciences and Engineering, 2015. http://dx.doi.org/10.20906/cps/cob-2015-0157.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Cao, Yinping, Hui Xia, and Yihua Dou. "Strength analysis of helical buckling tubing using spring theory." In GREEN ENERGY AND SUSTAINABLE DEVELOPMENT I: Proceedings of the International Conference on Green Energy and Sustainable Development (GESD 2017). Author(s), 2017. http://dx.doi.org/10.1063/1.4992980.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Helical spring' for particular source types:
Journal articles Dissertations / Theses Books
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