{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,5]],"date-time":"2026-03-05T17:49:39Z","timestamp":1772732979569,"version":"3.50.1"},"reference-count":24,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2022,11,7]],"date-time":"2022-11-07T00:00:00Z","timestamp":1667779200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Robotica"],"published-print":{"date-parts":[[2023,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Joint actuators with a compact size and high power density are necessary for robots with rotating joints, making the hydraulic actuator (HyA) an ideal actuator candidate. This paper presents a joint HyA with the following characteristics: compact installation size of 70 mm \u00d7 92.5 mm \u00d7 145 mm, low weight of 1.93 kg, high output torque of 742.2 Nm\/531.09 Nm in two directions under 210 bar, high torque to weight ratio of 265.5 Nm\/kg, low internal leakage of about 9 mL\/min, zero external leakage, low starting pressure of 0.26 MPa\/0.39 MPa in two directions, and a large rotation angle of 135 degrees. Compared with HyAs that have been applied in robot joints, the HyA proposed in this paper can greatly reduce the joint weight, reduce the joint size, and ensure the control performance of the joint movement.<\/jats:p><jats:p>In addition, a dynamic model of the HyA is established. Based on this, some dynamic design suggestions are given. Furthermore, a simple position and torque control algorithm for the HyA is proposed. Finally, some experiments are carried out to verify the performance of the HyA.<\/jats:p>","DOI":"10.1017\/s0263574722001576","type":"journal-article","created":{"date-parts":[[2022,11,7]],"date-time":"2022-11-07T09:44:31Z","timestamp":1667814271000},"page":"756-774","source":"Crossref","is-referenced-by-count":10,"title":["A hydraulic actuator for joint robots with higher torque to weight ratio"],"prefix":"10.1017","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5189-7861","authenticated-orcid":false,"given":"Jiaqi","family":"Li","sequence":"first","affiliation":[]},{"given":"Dacheng","family":"Cong","sequence":"additional","affiliation":[]},{"given":"Yu","family":"Yang","sequence":"additional","affiliation":[]},{"given":"ZhiDong","family":"Yang","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2022,11,7]]},"reference":[{"key":"S0263574722001576_ref17","doi-asserted-by":"crossref","unstructured":"[17] Kaminaga, H. , Otsuki, S. and Nakamura, Y. , \u201cDevelopment of High-Power and Backdrivable Linear Electro-Hydrostatic Actuator,\u201d In: IEEE-RAS International Conference on Humanoid Robots (IEEE, 2014).","DOI":"10.1109\/HUMANOIDS.2014.7041481"},{"key":"S0263574722001576_ref1","doi-asserted-by":"crossref","unstructured":"[1] S. H. Hyon, D. Suewaka, Y. Torii, N. Oku and H. Ishida, \u201cDevelopment of a Fast Torque-Controlled Hydraulic Humanoid Robot that Can Balance Compliantly[C],\u201d In: IEEE-RAS International Conference on Humanoid Robots. IEEE (2015) pp. 576\u2013581.","DOI":"10.1109\/HUMANOIDS.2015.7363420"},{"key":"S0263574722001576_ref23","first-page":"139","article-title":"Strength optimization design of a helical hydraulic rotary actuator","volume":"544","author":"Yang","year":"2012","journal-title":"Adv. Mat. Res."},{"key":"S0263574722001576_ref13","doi-asserted-by":"crossref","first-page":"699","DOI":"10.1243\/13506501JET290","article-title":"Modelling and optimization of rotary vane seals","volume":"221","author":"Nikas","year":"1994\u20131996 (vols 208\u2013210), 2007","journal-title":"ARCHIVE Proc. Inst. Mech. Eng. J J. Eng. 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Robot"},{"key":"S0263574722001576_ref8","doi-asserted-by":"crossref","first-page":"34","DOI":"10.1109\/MSPEC.2019.8913831","article-title":"By leaps and bounds: An exclusive look at how Boston dynamics is redefining robot agility","volume":"56","author":"Guizzo","year":"2019","journal-title":"IEEE Spectr"},{"key":"S0263574722001576_ref3","doi-asserted-by":"crossref","unstructured":"[3] Feng, S. , Feng, S. , Xinjilefu, X. , Atkeson, C. G. and Kim, J. , \u201cOptimization Based Controller Design and Implementation for the Atlas Robot in the Darpa Robotics Challenge Finals,\u201d In: 2015 IEEE-RAS 15th International Conference on Humanoid Robots (Humanoids) (IEEE, 2015).","DOI":"10.1109\/HUMANOIDS.2015.7363480"},{"key":"S0263574722001576_ref6","doi-asserted-by":"crossref","first-page":"51","DOI":"10.3389\/frobt.2018.00051","article-title":"Highly-integrated hydraulic smart actuators and smart manifolds for high-bandwidth force control","volume":"5","author":"Barasuol","year":"2018","journal-title":"Front. Robot. AI"},{"key":"S0263574722001576_ref12","doi-asserted-by":"crossref","unstructured":"[12] Kim, D. , Lee, S. , Shin, H. , Lee, G. , Park, J. and Ahn, K. , \u201cPrincipal Properties and Experiments of Hydraulic Actuator for Robot,\u201d In: International Conference on Ubiquitous Robots and Ambient Intelligence (URAI) (2014) pp. 458\u2013460.","DOI":"10.1109\/URAI.2014.7057456"},{"key":"S0263574722001576_ref16","unstructured":"[16] Hyon, S. H. , Yoneda, T. and Suewaka, D. , \u201cLightweight Hydraulic Leg to Explore Agile Legged Locomotion,\u201d In: IEEE\/RSJ International Conference on Intelligent Robots & Systems (IEEE, 2013)."},{"key":"S0263574722001576_ref18","doi-asserted-by":"crossref","unstructured":"[18] Wang, J. , Gao, F. and Zhang, Y. , \u201cHigh Power Density Drive System of a Novel Hydraulic Quadruped Robot,\u201d In: ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (DETC) (Buffalo, New York), vol. V05AT08A093 (2014).","DOI":"10.1115\/DETC2014-34804"},{"key":"S0263574722001576_ref7","first-page":"9","article-title":"Military robotics: Latest trends and spatial grasp solutions","volume":"4","author":"Sapaty","year":"2015","journal-title":"Int. J. Adv. Res. Artif. Intell"},{"key":"S0263574722001576_ref19","first-page":"163449","volume-title":"IEEE Access","volume":"7","author":"Hua"},{"key":"S0263574722001576_ref11","doi-asserted-by":"crossref","first-page":"108566","DOI":"10.1016\/j.ymssp.2021.108566","article-title":"Kinematics correction algorithm for the LHDS of a legged robot with semi-cylindrical foot end based on V-DOF","volume":"167","author":"Ba","year":"2022","journal-title":"Mech. Syst. Signal Process."},{"key":"S0263574722001576_ref4","first-page":"831","article-title":"Design of HyQ-a hydraulically and electrically actuated quadruped robot","volume":"225","author":"Semini","year":"2011","journal-title":"Proc. Inst. Mech. Eng. I: J. Syst. Control Eng"},{"key":"S0263574722001576_ref10","doi-asserted-by":"publisher","DOI":"10.1016\/j.ymssp.2017.12.014"},{"key":"S0263574722001576_ref14","first-page":"105868","article-title":"Effects of rotor surface texture on rotary vane actuator end sealing performance - ScienceDirect","volume":"140","author":"Teng","journal-title":"Tribol. Int."},{"key":"S0263574722001576_ref15","doi-asserted-by":"crossref","unstructured":"[15] Xie, Z. and Luo, X. , \u201cLow Speed Friction Characteristics of Swing Hydraulic Cylinder,\u201d In: International Conference on Mechatronics & Machine Vision in Practice (IEEE, 2016) pp. 1\u20136.","DOI":"10.1109\/M2VIP.2016.7827329"},{"key":"S0263574722001576_ref20","doi-asserted-by":"crossref","first-page":"172988141984414","DOI":"10.1177\/1729881419844148","article-title":"Analysis and research of quadruped robot\u2019s legs: A comprehensive review","volume":"16","author":"Zhong","year":"2019","journal-title":"Int. J. Adv. Robot. Syst."},{"key":"S0263574722001576_ref22","unstructured":"[22] Dellon, B. , Concentric opposed cam actuator: US20170100836A1 (2017)."}],"container-title":["Robotica"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0263574722001576","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,1,11]],"date-time":"2023-01-11T03:50:42Z","timestamp":1673409042000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0263574722001576\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,11,7]]},"references-count":24,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2023,2]]}},"alternative-id":["S0263574722001576"],"URL":"https:\/\/doi.org\/10.1017\/s0263574722001576","relation":{},"ISSN":["0263-5747","1469-8668"],"issn-type":[{"value":"0263-5747","type":"print"},{"value":"1469-8668","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,11,7]]}}}