学科分类
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1 个结果
  • 简介:Giantmagnetostrictiveactuators(GMAs)oftenworkinaclose-loopfeedbacksystem.Thissystemneedsindependentsensorswhichmaybedifficulttobefixed,besides,excessivesensorsmaycausemoreunpredictedproblemsinalargesystem.Thispaperaimstodevelopaself-sensingGMA.Anobserverbasedonpiezomagneticequationsisconstructedtoestimatethestressandstrainofthemagnetostrictivematerial.Theobserverbasedself-sensingapproachdependsonthefactsthatthemagneticfieldiscontrollableandthatthemagneticinductionismeasurable.Aimingatthenonlinearhysteresisinmagnetization,ahys-teresiscompensationobserverbasedonPreisachmodelisdeveloped.Experimentverifiedtheavailabilityoftheobserverapproach,andthehysteresiscompensationobserverhashighertrackingprecisionthanlinearobserverfordynamicforcesensing.

  • 标签: 机械加工 机械动力学 磁力控制 感觉执行机构