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Pneumatic and tendon actuation coupled muti-mode actuators for soft robots with broad force and speed range

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Abstract

Broad output force and speed ranges are highly desired for actuators to endow soft robots with high performance, thereby increasing the range of tasks they can accomplish. However, limited by their low structural stiffness and single actuation method, most of the existed soft actuators are still difficult to achieve a broad force and speed range with a relatively compact body structure. Here, we propose a pneumatic and tendon actuation coupled soft actuator (PTCSA) with multiple actuation modes, mainly composing of a multi-joint thermoplastic polyurethanes (TPU)-made skeleton sealed in a film sleeve. The TPU skeleton with certain structural stiffness combined with soft joints allows PTCSA to output small force and respond rapidly under pneumatic actuation, as well as output high force and flexibly regulate response speed under tendon actuation, therefore achieving a broad force and speed range with a compact structure. The multiple modes constructed from the two actuation methods with different force and speed properties can cover diverse application scenarios. To demonstrate its performance, PTCSA is further used to construct a soft robotic arm (with a maximum lifting speed of 198°/s and can easily lift a load of 200 g), an inchworm-inspired wheel-footed soft robot (moves at a high speed of 2.13 cm/s when unload or pulls a load of 300 g forward), and a soft gripper (can grasp diverse objects, from 0.1 g potato chips to an 850 g roll of Sn-0.7Cu wire, from a high-speed moving tennis ball to an upright pen). This work indicates the potential of combining multiple complementary actuation methods to improve the force and speed range of soft actuators, and may provide inspiration for related research.

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References

  1. Li S, Bai H, Shepherd R F, et al. Bio-inspired design and additive manufacturing of soft materials, machines, robots, and haptic interfaces. Angew Chem Int Ed, 2019, 58: 11182–11204

    Article  Google Scholar 

  2. Zhu J, Lyu L, Xu Y, et al. Intelligent soft surgical robots for nextgeneration minimally invasive surgery. Adv Intell Syst, 2021, 3: 2100011

    Article  Google Scholar 

  3. Zhu J, Chai Z, Yong H, et al. Bioinspired multimodal multipose hybrid fingers for wide-range force, compliant, and stable grasping. Soft Robotics, 2022, doi: https://doi.org/10.1089/soro.2021.0126

  4. Lin Y, Zhang C, Tang W, et al. A bioinspired stress-response strategy for high-speed soft grippers. Adv Sci, 2021, 8: 2102539

    Article  Google Scholar 

  5. Di Lallo A, Catalano M, Garabini M, et al. Dynamic morphological computation through damping design of soft material robots: Application to under-actuated grippers. In: Proceedings of the 2019 IEEE International Conference on Robotics and Automation (ICRA). Montreal, 2019. 5155–5161

  6. Jones T J, Jambon-Puillet E, Marthelot J, et al. Bubble casting soft robotics. Nature, 2021, 599: 229–233

    Article  Google Scholar 

  7. Xie Z, Domel A G, An N, et al. Octopus arm-inspired tapered soft actuators with suckers for improved grasping. Soft Robotics, 2020, 7: 639–648

    Article  Google Scholar 

  8. Jiao Z, Ji C, Zou J, et al. Vacuum-powered soft pneumatic twisting actuators to empower new capabilities for soft robots. Adv Mater Technol, 2019, 4: 1800429

    Article  Google Scholar 

  9. Manti M, Hassan T, Passetti G, et al. A bioinspired soft robotic gripper for adaptable and effective grasping. Soft Robotics, 2015, 2: 107–116

    Article  Google Scholar 

  10. Chen F, Xu W, Zhang H, et al. Topology optimized design, fabrication, and characterization of a soft cable-driven gripper. IEEE Robot Autom Lett, 2018, 3: 2463–2470

    Article  Google Scholar 

  11. Huang X, Kumar K, Khalid Jawed M, et al. Soft electrically actuated quadruped (SEAQ)—Integrating a flex circuit board and elastomeric limbs for versatile mobility. IEEE Robot Autom Lett, 2019, 4: 2415–2422

    Article  Google Scholar 

  12. Wang W, Yu C Y, Abrego Serrano P A, et al. Shape memory alloy-based soft finger with changeable bending length using targeted variable stiffness. Soft Robotics, 2020, 7: 283–291

    Article  Google Scholar 

  13. Li G, Chen X, Zhou F, et al. Self-powered soft robot in the Mariana Trench. Nature, 2021, 591: 66–71

    Article  Google Scholar 

  14. Wang Y Z, Gupta U, Parulekar N, et al. A soft gripper of fast speed and low energy consumption. Sci China Tech Sci, 2019, 62: 31–38

    Article  Google Scholar 

  15. Zhang Z, Fan W, Chen G, et al. A 3D printable origami vacuum pneumatic artificial muscle with fast and powerful motion. In: Proceedings of the 2021 IEEE International Conference on Soft Robotics (RoboSoft). New Haven, 2021. 551–554

  16. Liu S, Zhu Y, Zhang Z, et al. Otariidae-inspired soft-robotic supernumerary flippers by fabric kirigami and origami. IEEE ASME Trans Mechatron, 2020, 26: 2747–2757

    Article  Google Scholar 

  17. Tawk C, Spinks G M, in het Panhuis M, et al. 3D printable linear soft vacuum actuators: Their modeling, performance quantification and application in soft robotic systems. IEEE ASME Trans Mechatron, 2019, 24: 2118–2129

    Article  Google Scholar 

  18. Zhu M, Do T N, Hawkes E, et al. Fluidic fabric muscle sheets for wearable and soft robotics. Soft Robotics, 2020, 7: 179–197

    Article  Google Scholar 

  19. Fu H C, Ho J D L, Lee K H, et al. Interfacing soft and hard: A spring reinforced actuator. Soft Robotics, 2020, 7: 44–58

    Article  Google Scholar 

  20. Gong S, Ding Q, Wu J, et al. Bioinspired multifunctional mechanoreception of soft-rigid hybrid actuator fingers. Adv Intell Syst, 2022, 4: 2100242

    Article  Google Scholar 

  21. Yap H K, Ng H Y, Yeow C H. High-force soft printable pneumatics for soft robotic applications. Soft Robotics, 2016, 3: 144–158

    Article  Google Scholar 

  22. Keong B A W, Hua R Y C. A novel fold-based design approach toward printable soft robotics using flexible 3D printing materials. Adv Mater Technol, 2018, 3: 1700172

    Article  Google Scholar 

  23. Li S, Vogt D M, Rus D, et al. Fluid-driven origami-inspired artificial muscles. Proc Natl Acad Sci USA, 2017, 114: 13132–13137

    Article  Google Scholar 

  24. Liu X, Zhao Y, Geng D, et al. Soft humanoid hands with large grasping force enabled by flexible hybrid pneumatic actuators. Soft Robotics, 2021, 8: 175–185

    Article  Google Scholar 

  25. Mosadegh B, Polygerinos P, Keplinger C, et al. Pneumatic networks for soft robotics that actuate rapidly. Adv Funct Mater, 2014, 24: 2163–2170

    Article  Google Scholar 

  26. Gorissen B, Melancon D, Vasios N, et al. Inflatable soft jumper inspired by shell snapping. Sci Robot, 2020, 5: eabb1967

    Article  Google Scholar 

  27. Overvelde J T B, Kloek T, D’haen J J A, et al. Amplifying the response of soft actuators by harnessing snap-through instabilities. Proc Natl Acad Sci USA, 2015, 112: 10863–10868

    Article  Google Scholar 

  28. Kim W, Byun J, Kim J K, et al. Bioinspired dual-morphing stretchable origami. Sci Robot, 2019, 4: eaay3493

    Article  Google Scholar 

  29. Baumgartner R, Kogler A, Stadlbauer J M, et al. A lesson from plants: High-speed soft robotic actuators. Adv Sci, 2020, 7: 1903391

    Article  Google Scholar 

  30. Gu G, Zou J, Zhao R, et al. Soft wall-climbing robots. Sci Robot, 2018, 3: eaat2874

    Article  Google Scholar 

  31. Ren Z, Hu W, Dong X, et al. Multi-functional soft-bodied jellyfishlike swimming. Nat Commun, 2019, 10: 2703

    Article  Google Scholar 

  32. Li Y, Chen Y, Ren T, et al. Precharged pneumatic soft actuators and their applications to untethered soft robots. Soft Robotics, 2018, 5: 567–575

    Article  Google Scholar 

  33. O’Brien K W, Xu P A, Levine D J, et al. Elastomeric passive transmission for autonomous force-velocity adaptation applied to 3D-printed prosthetics. Sci Robot, 2018, 3: eaau5543

    Article  Google Scholar 

  34. Matsushita K, Shikanai S, Yokoi H. Development of Drum CVT for a wire-driven robot hand. In: Proceedings of the 2009 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). St. Louis, 2009. 2251–2256

  35. Jeong S H, Kim K S. A 2-speed small transmission mechanism based on twisted string actuation and a dog clutch. IEEE Robot Autom Lett, 2018, 3: 1338–1345

    Article  Google Scholar 

  36. Zhang T, Yang L, Yang X, et al. Millimeter-scale soft continuum robots for large-angle and high-precision manipulation by hybrid actuation. Adv Intell Syst, 2021, 3: 2000189

    Article  Google Scholar 

  37. Li C, Lau G C, Yuan H, et al. Fast and programmable locomotion of hydrogel-metal hybrids under light and magnetic fields. Sci Robot, 2020, 5: eabb9822

    Article  Google Scholar 

  38. Kang R, Guo Y, Chen L, et al. Design of a pneumatic muscle based continuum robot with embedded tendons. IEEE ASME Trans Mechatron, 2016, 22: 751–761

    Article  Google Scholar 

  39. Meng J, Gerez L, Chapman J, et al. A tendon-driven, preloaded, pneumatically actuated, soft robotic gripper with a telescopic palm. In: Proceedings of the 2020 IEEE International Conference on Soft Robotics (RoboSoft). New Haven, 2020. 476–481

  40. Spröwitz A, Göttler C, Sinha A, et al. Scalable pneumatic and tendon driven robotic joint inspired by jumping spiders. In: Proceedings of the 2017 IEEE International Conference on Robotics and Automation (ICRA). Singapore, 2017. 64–70

  41. Shahid Z, Glatman A L, Ryu S C. Design of a soft composite finger with adjustable joint stiffness. Soft Robotics, 2019, 6: 722–732

    Article  Google Scholar 

  42. Han K, Kim N H, Shin D. A novel soft pneumatic artificial muscle with high-contraction ratio. Soft Robotics, 2018, 5: 554–566

    Article  Google Scholar 

  43. Subramaniam V, Jain S, Agarwal J, et al. Design and characterization of a hybrid soft gripper with active palm pose control. Int J Robotics Res, 2020, 39: 1668–1685

    Article  Google Scholar 

  44. Zhu J, Fei W, Ding H, et al. Pressure and tendon actuation integrated three-finger soft gripper for wide force and speed range grasping. In: Proceedings of the 2021 International Conference on Mechatronics and Machine Vision in Practice (M2VIP). Shanghai, 2021. 682–687

  45. Tawk C, Gillett A, in het Panhuis M, et al. A 3D-printed omni-purpose soft gripper. IEEE Trans Robot, 2019, 35: 1268–1275

    Article  Google Scholar 

  46. Cui Y, Liu X J, Dong X, et al. Enhancing the universality of a pneumatic gripper via continuously adjustable initial grasp postures. IEEE Trans Robot, 2021, 37: 1604–1618

    Article  Google Scholar 

  47. Yan J, Xu Z, Shi P, et al. A human-inspired soft finger with dual-mode morphing enabled by variable stiffness mechanism. Soft Robotics, 2022, 9: 399–411

    Article  Google Scholar 

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Authors and Affiliations

  1. State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China

    JiaQi Zhu, MengHao Pu, Han Chen, Yi Xu, Han Ding & ZhiGang Wu

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  1. JiaQi Zhu
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  2. MengHao Pu
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  3. Han Chen
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  4. Yi Xu
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  5. Han Ding
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  6. ZhiGang Wu
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Corresponding author

Correspondence to ZhiGang Wu.

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The supporting information is available online at tech.scichina.com and link.springer.com. The supporting materials are published as submitted, without typesetting or editing. The responsibility for scientific accuracy and content remains entirely with the authors.

This work was supported by the National Natural Science Foundation of China (Grant Nos. 52188102 and U1613204).

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Zhu, J., Pu, M., Chen, H. et al. Pneumatic and tendon actuation coupled muti-mode actuators for soft robots with broad force and speed range. Sci. China Technol. Sci. 65, 2156–2169 (2022). https://doi.org/10.1007/s11431-022-2108-y

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  • DOI: https://doi.org/10.1007/s11431-022-2108-y

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