{"id":"https://openalex.org/W4389164406","doi":"https://doi.org/10.1109/access.2023.3338552","title":"Mechanistic Study of a Low Frequency Piezoelectric Motor With Natural Frequency Adjustment Method","display_name":"Mechanistic Study of a Low Frequency Piezoelectric Motor With Natural Frequency Adjustment Method","publication_year":2023,"publication_date":"2023-01-01","ids":{"openalex":"https://openalex.org/W4389164406","doi":"https://doi.org/10.1109/access.2023.3338552"},"language":"en","primary_location":{"id":"doi:10.1109/access.2023.3338552","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2023.3338552","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/10336801.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/10336801.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101657057","display_name":"Xiaotao Li","orcid":"https://orcid.org/0000-0001-5743-7885"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]},{"id":"https://openalex.org/I49232843","display_name":"Changchun University","ror":"https://ror.org/02an57k10","country_code":"CN","type":"education","lineage":["https://openalex.org/I49232843"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaotao Li","raw_affiliation_strings":["School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, China","School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, Jilin, China"],"raw_orcid":"https://orcid.org/0000-0001-5743-7885","affiliations":[{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, China","institution_ids":["https://openalex.org/I194450716","https://openalex.org/I49232843"]},{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, Jilin, China","institution_ids":["https://openalex.org/I194450716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021107147","display_name":"Shengjiang Wang","orcid":"https://orcid.org/0000-0001-9497-5180"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]},{"id":"https://openalex.org/I49232843","display_name":"Changchun University","ror":"https://ror.org/02an57k10","country_code":"CN","type":"education","lineage":["https://openalex.org/I49232843"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shengjiang Wang","raw_affiliation_strings":["School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, China","School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, Jilin, China"],"raw_orcid":"https://orcid.org/0000-0001-9497-5180","affiliations":[{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, China","institution_ids":["https://openalex.org/I194450716","https://openalex.org/I49232843"]},{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, Jilin, China","institution_ids":["https://openalex.org/I194450716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003313917","display_name":"Xiangyou Peng","orcid":"https://orcid.org/0000-0001-5818-5093"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]},{"id":"https://openalex.org/I49232843","display_name":"Changchun University","ror":"https://ror.org/02an57k10","country_code":"CN","type":"education","lineage":["https://openalex.org/I49232843"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiangyou Peng","raw_affiliation_strings":["School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, China","School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, Jilin, China"],"raw_orcid":"https://orcid.org/0000-0001-5818-5093","affiliations":[{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, China","institution_ids":["https://openalex.org/I194450716","https://openalex.org/I49232843"]},{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, Jilin, China","institution_ids":["https://openalex.org/I194450716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031292712","display_name":"Guan Xu","orcid":"https://orcid.org/0000-0002-9364-4790"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guan Xu","raw_affiliation_strings":["Transportation College, Jilin University, Nanling Campus, Changchun, China","Transportation College, Jilin University, Nanling Campus, Changchun, Jilin, China"],"raw_orcid":"https://orcid.org/0000-0002-9364-4790","affiliations":[{"raw_affiliation_string":"Transportation College, Jilin University, Nanling Campus, Changchun, China","institution_ids":["https://openalex.org/I194450716"]},{"raw_affiliation_string":"Transportation College, Jilin University, Nanling Campus, Changchun, Jilin, China","institution_ids":["https://openalex.org/I194450716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101526484","display_name":"Jingshi Dong","orcid":"https://orcid.org/0000-0002-5253-5766"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]},{"id":"https://openalex.org/I49232843","display_name":"Changchun University","ror":"https://ror.org/02an57k10","country_code":"CN","type":"education","lineage":["https://openalex.org/I49232843"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jingshi Dong","raw_affiliation_strings":["School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, China","School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, Jilin, China"],"raw_orcid":"https://orcid.org/0000-0002-5253-5766","affiliations":[{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, China","institution_ids":["https://openalex.org/I194450716","https://openalex.org/I49232843"]},{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, Jilin, China","institution_ids":["https://openalex.org/I194450716"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084086078","display_name":"Fengjun Tian","orcid":"https://orcid.org/0000-0003-0487-607X"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]},{"id":"https://openalex.org/I49232843","display_name":"Changchun University","ror":"https://ror.org/02an57k10","country_code":"CN","type":"education","lineage":["https://openalex.org/I49232843"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Fengjun Tian","raw_affiliation_strings":["School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, China","School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, Jilin, China"],"raw_orcid":"https://orcid.org/0000-0003-0487-607X","affiliations":[{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, China","institution_ids":["https://openalex.org/I194450716","https://openalex.org/I49232843"]},{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Jilin University, Nanling Campus, Changchun, Jilin, China","institution_ids":["https://openalex.org/I194450716"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5101657057"],"corresponding_institution_ids":["https://openalex.org/I194450716","https://openalex.org/I49232843"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.1775,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.50121625,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":95},"biblio":{"volume":"11","issue":null,"first_page":"136600","last_page":"136608"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11525","display_name":"Piezoelectric Actuators and Control","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11525","display_name":"Piezoelectric Actuators and Control","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10369","display_name":"Advanced MEMS and NEMS Technologies","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11799","display_name":"Adhesion, Friction, and Surface Interactions","score":0.9969000220298767,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/natural-frequency","display_name":"Natural frequency","score":0.7330871820449829},{"id":"https://openalex.org/keywords/vibration","display_name":"Vibration","score":0.7039143443107605},{"id":"https://openalex.org/keywords/piezoelectric-motor","display_name":"Piezoelectric motor","score":0.6034857630729675},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.5475786328315735},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.5206262469291687},{"id":"https://openalex.org/keywords/rotation","display_name":"Rotation (mathematics)","score":0.5101152062416077},{"id":"https://openalex.org/keywords/rotor","display_name":"Rotor (electric)","score":0.5096831321716309},{"id":"https://openalex.org/keywords/low-frequency","display_name":"Low frequency","score":0.47533321380615234},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.4661347270011902},{"id":"https://openalex.org/keywords/torque","display_name":"Torque","score":0.4514925479888916},{"id":"https://openalex.org/keywords/rotation-around-a-fixed-axis","display_name":"Rotation around a fixed axis","score":0.4371088743209839},{"id":"https://openalex.org/keywords/ultrasonic-motor","display_name":"Ultrasonic motor","score":0.4349178075790405},{"id":"https://openalex.org/keywords/rotational-speed","display_name":"Rotational speed","score":0.4176935851573944},{"id":"https://openalex.org/keywords/displacement","display_name":"Displacement (psychology)","score":0.4160999655723572},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.1602582037448883},{"id":"https://openalex.org/keywords/classical-mechanics","display_name":"Classical mechanics","score":0.1333288848400116}],"concepts":[{"id":"https://openalex.org/C78736273","wikidata":"https://www.wikidata.org/wiki/Q946764","display_name":"Natural frequency","level":3,"score":0.7330871820449829},{"id":"https://openalex.org/C198394728","wikidata":"https://www.wikidata.org/wiki/Q3695508","display_name":"Vibration","level":2,"score":0.7039143443107605},{"id":"https://openalex.org/C149878695","wikidata":"https://www.wikidata.org/wiki/Q10541502","display_name":"Piezoelectric motor","level":3,"score":0.6034857630729675},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.5475786328315735},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.5206262469291687},{"id":"https://openalex.org/C74050887","wikidata":"https://www.wikidata.org/wiki/Q848368","display_name":"Rotation (mathematics)","level":2,"score":0.5101152062416077},{"id":"https://openalex.org/C17281054","wikidata":"https://www.wikidata.org/wiki/Q193466","display_name":"Rotor (electric)","level":2,"score":0.5096831321716309},{"id":"https://openalex.org/C104892082","wikidata":"https://www.wikidata.org/wiki/Q17156810","display_name":"Low frequency","level":2,"score":0.47533321380615234},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4661347270011902},{"id":"https://openalex.org/C144171764","wikidata":"https://www.wikidata.org/wiki/Q48103","display_name":"Torque","level":2,"score":0.4514925479888916},{"id":"https://openalex.org/C6342182","wikidata":"https://www.wikidata.org/wiki/Q2995427","display_name":"Rotation around a fixed axis","level":2,"score":0.4371088743209839},{"id":"https://openalex.org/C138794181","wikidata":"https://www.wikidata.org/wiki/Q10541502","display_name":"Ultrasonic motor","level":3,"score":0.4349178075790405},{"id":"https://openalex.org/C81063470","wikidata":"https://www.wikidata.org/wiki/Q1256787","display_name":"Rotational speed","level":2,"score":0.4176935851573944},{"id":"https://openalex.org/C107551265","wikidata":"https://www.wikidata.org/wiki/Q1458245","display_name":"Displacement (psychology)","level":2,"score":0.4160999655723572},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.1602582037448883},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.1333288848400116},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C542102704","wikidata":"https://www.wikidata.org/wiki/Q183257","display_name":"Psychotherapist","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2023.3338552","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2023.3338552","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/10336801.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:f861ecc9327b4e4290755fb11db9a2c6","is_oa":true,"landing_page_url":"https://doaj.org/article/f861ecc9327b4e4290755fb11db9a2c6","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 11, Pp 136600-136608 (2023)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2023.3338552","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2023.3338552","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/10336801.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.7099999785423279,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[{"id":"https://openalex.org/G1921412581","display_name":null,"funder_award_id":"JJKH20220986KJ","funder_id":"https://openalex.org/F4320326270","funder_display_name":"Education Department of Jilin Province"},{"id":"https://openalex.org/G4297979861","display_name":null,"funder_award_id":"52005214","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322174","display_name":"People's Government of Jilin Province","ror":"https://ror.org/02fzqav45"},{"id":"https://openalex.org/F4320326270","display_name":"Education Department of Jilin Province","ror":"https://ror.org/05782e512"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4389164406.pdf","grobid_xml":"https://content.openalex.org/works/W4389164406.grobid-xml"},"referenced_works_count":31,"referenced_works":["https://openalex.org/W1972530730","https://openalex.org/W2038554669","https://openalex.org/W2084298534","https://openalex.org/W2810879186","https://openalex.org/W2901669856","https://openalex.org/W2902289341","https://openalex.org/W2943228886","https://openalex.org/W3003495151","https://openalex.org/W3021519971","https://openalex.org/W3049166365","https://openalex.org/W3061820554","https://openalex.org/W3081809890","https://openalex.org/W3086294196","https://openalex.org/W3094362067","https://openalex.org/W3094985564","https://openalex.org/W3095034925","https://openalex.org/W3108663713","https://openalex.org/W3169101450","https://openalex.org/W3169360062","https://openalex.org/W3180492589","https://openalex.org/W3195751421","https://openalex.org/W4200599730","https://openalex.org/W4221136817","https://openalex.org/W4230536724","https://openalex.org/W4293228514","https://openalex.org/W4297229487","https://openalex.org/W4304190309","https://openalex.org/W4320718935","https://openalex.org/W4361862630","https://openalex.org/W4362579559","https://openalex.org/W4368365815"],"related_works":["https://openalex.org/W1538801905","https://openalex.org/W2027098359","https://openalex.org/W4240743718","https://openalex.org/W2006403447","https://openalex.org/W4241914731","https://openalex.org/W2110057820","https://openalex.org/W2006140691","https://openalex.org/W2068428920","https://openalex.org/W2278945259","https://openalex.org/W2144190867"],"abstract_inverted_index":{"A":[0],"variable":[1],"frequency":[2,81,130],"piezoelectric":[3,74,143],"motor":[4,85,131,144],"is":[5,59,86,103,145],"studied,":[6],"which":[7],"can":[8],"generate":[9],"rotational":[10],"motion":[11,117,125,150],"under":[12],"the":[13,27,33,38,43,48,52,57,68,72,79,83,92,97,100,107,116,120,123,128,136,141,148],"excitation":[14],"of":[15,71,82,96,122,127,140],"variable-mode":[16,21,73],"vibration":[17,22,76,111],"response":[18,23,77],"units.":[19],"Two":[20],"units":[24],"fixed":[25],"in":[26,113],"inclined":[28],"plane":[29],"are":[30,132],"excited":[31],"by":[32,147],"square":[34],"wave":[35],"and":[36,45,56,110,135,152],"drive":[37],"friction":[39,49],"disk":[40],"to":[41,61,90],"achieve":[42,91],"rotation":[44,138],"translation.":[46],"Thus,":[47],"torque":[50],"on":[51,106],"rotor":[53,58],"changes":[54],"periodically,":[55],"driven":[60],"produce":[62],"positive":[63],"displacement":[64,94],"output.":[65],"By":[66],"adjusting":[67],"mass":[69],"distribution":[70],"wafer":[75],"unit,":[78],"natural":[80],"low-frequency":[84,98],"adjustable.":[87],"In":[88],"order":[89],"maximum":[93,137],"output":[95],"motor,":[99],"simulation":[101],"analysis":[102],"initially":[104],"performed":[105],"stiffness,":[108],"mode,":[109],"shape":[112],"line":[114],"with":[115],"principle.":[118],"Then":[119],"experiments":[121],"variable-natural-frequency":[124,149],"characteristics":[126,151],"low":[129],"carried":[133],"out,":[134],"speed":[139],"designed":[142],"improved":[146],"reaches":[153],"520":[154],"mrad/s.":[155]},"counts_by_year":[{"year":2025,"cited_by_count":1}],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-10-10T00:00:00"}