Composite wave springs: Theory and design

Erfanian-NazifToosi, Hamid-Reza; Shams, Seyedmohammad; Elhajjar, Rani

doi:10.1016/j.matdes.2016.01.073

Cited by 13 publications

(3 citation statements)

References 17 publications

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“…Some research is done in which shape memory alloy-based wave spring used in valves; robotic arm wave spring made up of TPU [10][11]. To increase the stiffness of the wave spring, composite wave spring are manufactured and experimentally tested with varying thickness by increasing layup of plies with same thickness [12].…”

Section: Introductionmentioning

confidence: 99%

Development and analysis of polymer-based wave spring response with different infill density

Gouda

2023

Preprint

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The development of wave spring has enhanced performance characteristics like load bearing capability, stiffness, energy absorption and energy release technique in a constrained space. The wave springs can be developed by considering the number of turns, waves, thickness, which can be easily adjusted to accommodate stronger force and to meet specific technical requirements as per the area of applications. Wave springs are complex in design and can be fabricated by additive manufacturing technique. Advanced manufacturing methods provides full design freedom to develop the wave spring of various geometry. Present work is focused to evaluate the Polypropylene wave spring stiffness and its load bearing capacity, which may be helpful in the application of smooth landing of drones and robotic structures, mechanical pressure valves and washers. Limited study of the polymer-based wave spring properties and its material behavior has been studied. The contemporary work establishes the computational and experimental analysis of crest-to-crest wave springs which are designed with honeycomb infill pattern with infill density of 100%, 90% and 80%. Maximum load bearing capacity and stiffness of the different designed wave springs are obtained through universal testing machine. From the experimental results the average load bearing capacity of PP 100%, PP 90% and PP 80% at 75% of compressible distance of crest-to-crest wave spring from cycle 1 to 10. The results of the 1st cycle load bearing capacity are 234.075 N, 181.31 N and 178.58N respectively.

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Section: Introductionmentioning

confidence: 99%

Development and analysis of polymer-based wave spring response with different infill density

Gouda

2023

Preprint

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“…Naziftoosi et al studied the analytical model for presenting composite wave springs and optimized the design by keeping the outer diameter constant while changing the inside diameter and thickness of the strip of the spring. It was concluded that diameter ratio has nonlinear relation with the thickness of the strip as well as with the stiffness of the spring, also the deformation mode in such structure is primarily bending in nature [33]. Ultra-light multifunctional using thermos-elastic processing, metallic foils were shaped into linear wave springs by which the mass of the spring is greatly reduced as compared to conventional spring.…”

Section: Introductionmentioning

confidence: 99%

Parametric investigation of functionally gradient wave springs designed for additive manufacturing

Haq

Nazir

Lin

et al. 2021

Int J Adv Manuf Technol

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Functionality and design of mechanical springs are simple and limited due to manufacturing constraints of conventional fabrication methods being used for making helical and wave springs. In recent era, design for additive manufacturing has proven its great worth to design and manufacture optimal, complex as well as intricate structures with better mechanical and lightweigting properties. This study aims to investigate the mechanical behaviour of functionally gradient wave springs as a function of variation in thickness and morphology of each wave. Functionally gradient wave springs incorporated with different morphology and cross-sections including circular, rectangular and combination of both were designed and printed by keeping mass and height constant to investigate their mechanical properties. Loading-unloading experimentation were conducted within the elastic range ( 90 % of compressible distance) in order to study energy absorption/loss, load-bearing capacity and stiffness of all designs. The experimental results were validated by nite element anaylsis by providing the identical boundary conditions of experimental setup. The results revealed that the stiffness of wave spring having rectangular cross-section is increased signi cantly while energy absorption is almost 90 % increased due to circular cross-section of waves. Overall, the design with combination of round and rectangular crosssectional waves has better stiffness and energy absorption properties. For further investigation of mechanical properties due to variation in cross-section of waves, more designs including semi-circular and lleted waves, were designed and nite element of those showed that 786 N of load-bearing capacity is achieved in the wave spring having semicircular cross-section of waves which is double than the wave spring having variable circular cross-section of waves.

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“…Polimer matriksli fiber takviyeli kompozitler, yüksek özgül mukavemet ve rijitlikleri, korozyon dayanımları ve iyi sönümleme kabiliyetleri nedeniyle ağırlık azaltımının önemli olduğu otomobil, uzay ve havacılık uygulamalarında yaygın olarak kullanılmaktadır. Bilim insanları, çelik ve alüminyum gibi geleneksel malzemeler yerine kompozit malzemelerin kullanıldığı mühendislik alanlarını genişletmek için çalışmalarını sürdürmektedir [1], [2].…”

Section: Introductionunclassified

Design, modeling and structural analysis of single-turn composite wave springs

Beylergi̇l¹

2020

Pamukkale J Eng Sci

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Bu çalışmada, tek-katlı kompozit dalgalı yayların bası yükü altındaki mekanik davranışları nümerik olarak incelenmiştir. Nümerik analizler, Ansys Workbench ve ACP Modülü sonlu elemanlar programı kullanılarak yapılmıştır. Numerik doğrulama çelik dalgalı yay probleminin nümerik sonuçları ile analitik sonuçlar karşılaştırılarak yapılmıştır. Doğrulamadan sonra, sonlu elemanlar modeli bu çalışma için genişletilmiştir. Kompozit malzeme olarak karbon fiber/epoksi ve cam fiber/epoksi seçilmiştir. Tasarım parametreleri olarak dalga sayısı (4, 6 ve 8) ve kompozit kalınlığı (tabaka sayısı; 4, 6, 8, 10 ve 12) ele alınmıştır. Bu tasarım parametreleri ve malzeme türleri için yay rijitlikleri hesaplanmış ve çelik yay ile kıyaslamalar yapılmıştır. Yayların hasar yükleri, Tsai-Wu hasar kriteri kullanılarak belirlenmiştir. Buna ek olarak, hibritleştirme etkisinin yayın mekanik davranışa etkisi incelenmiştir. Nümerik sonuçlar, kompozit tasarım parametreleri doğru olarak seçildiğinde çeliğe yakın rijitlik değerlerinin ve yayda önemli ağırlık azaltımının sağlanabileceğini göstermiştir.

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Composite wave springs: Theory and design

Cited by 13 publications

References 17 publications

Development and analysis of polymer-based wave spring response with different infill density

Development and analysis of polymer-based wave spring response with different infill density

Parametric investigation of functionally gradient wave springs designed for additive manufacturing

Design, modeling and structural analysis of single-turn composite wave springs

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