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However, combining these capabilities into a single robot skillfully is challenging, particularly in the domain of miniature structural design. Inspired by the amphibious motion of crocodiles in nature, a hollow piezoelectric miniature robot (HPMR) is proposed. The key benefit of the HPMR is to concurrently output the oscillating motion of the driving foot (oscillating mode) and the rotating motion of the internal rotor (rotating mode). That is, the mode of single\u2010energy\u2010input\u2010multimotion output allows the robot to balance the requirements of speed and adaptability. In the oscillating mode, HPMR can run at speeds of up to 12.3\u2009BL\u2009s<jats:sup>\u22121<\/jats:sup> and realize a displacement resolution of 0.3\u2009\u03bcm. Following the conical rotor assembly, the rotor can operate at a speed of 890\u2009rpm, with a displacement resolution of 7.28\u2009mrad. In the rotating mode, the robot demonstrates its multitasking ability in moving amphibiously, carrying loads, running on surfaces with varying roughness, crossing obstacles, and resisting shocks. The results show that the HPMR is capable of fast, high\u2010resolution moving combined with high adaptability, opening up the possibility of using it for mobile detection tasks in real\u2010world settings.<\/jats:p>","DOI":"10.1002\/aisy.202300612","type":"journal-article","created":{"date-parts":[[2024,1,15]],"date-time":"2024-01-15T00:30:26Z","timestamp":1705278626000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Fast\u2010Moving and Highly Adaptable Hollow Piezoelectric Miniature Robot"],"prefix":"10.1002","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5893-6731","authenticated-orcid":false,"given":"Binbin","family":"Zhu","sequence":"first","affiliation":[{"name":"Key Laboratory of Structural Dynamics of Liaoning Province College of Sciences Northeastern University  Shenyang 110819 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0193-3999","authenticated-orcid":false,"given":"Yan Qing","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Structural Dynamics of Liaoning Province College of Sciences Northeastern University  Shenyang 110819 China"},{"name":"Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines Northeastern University  Shenyang 110819 China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,1,14]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41578-018-0016-9"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/aisy.202100279"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/advs.202203054"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/aisy.202000227"},{"key":"e_1_2_8_6_1","doi-asserted-by":"crossref","unstructured":"X.Huang F.Arvin C.West S.Watson B.Lennox in2019 IEEE Int. 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