中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2015年
2期
192-195
,共4页
电液力加载%钢丝绳刚度%复合控制%输入前馈
電液力加載%鋼絲繩剛度%複閤控製%輸入前饋
전액력가재%강사승강도%복합공제%수입전궤
electro-hydraulic loading system%wire-rope stiffness%composite controller%input feed-forward
针对海洋船舶拖曳系统半实物仿真的需要，设计了以钢丝绳为力传递介质的电液力加载系统。建立了力加载系统的数学模型，通过试验得出了钢丝绳刚度与加载力的对应关系式；分析了钢丝绳刚度对系统性能、控制器设计的影响，得出钢丝绳刚度减小会导致力加载系统频宽减小、滞后增大的结论。基于此设计了变增益前馈补偿控制器。试验结果表明，该方法提高了系统加载力跟踪精度。
針對海洋船舶拖抴繫統半實物倣真的需要，設計瞭以鋼絲繩為力傳遞介質的電液力加載繫統。建立瞭力加載繫統的數學模型，通過試驗得齣瞭鋼絲繩剛度與加載力的對應關繫式；分析瞭鋼絲繩剛度對繫統性能、控製器設計的影響，得齣鋼絲繩剛度減小會導緻力加載繫統頻寬減小、滯後增大的結論。基于此設計瞭變增益前饋補償控製器。試驗結果錶明，該方法提高瞭繫統加載力跟蹤精度。
침대해양선박타예계통반실물방진적수요，설계료이강사승위력전체개질적전액력가재계통。건립료력가재계통적수학모형，통과시험득출료강사승강도여가재력적대응관계식；분석료강사승강도대계통성능、공제기설계적영향，득출강사승강도감소회도치력가재계통빈관감소、체후증대적결론。기우차설계료변증익전궤보상공제기。시험결과표명，해방법제고료계통가재력근종정도。
An electro-hydraulic loading system,conveying force by wire-rope,was designed to meet the requirements of hardware-in-the-loop simulations of the towing system in the marine vessel.A mathematical model of the electro-hydraulic loading system was presented herein.The relationship ex-pression between the wire-rope stiffness and the loading force was derived from the results of experi-ments.Through the analysis of the effect of the wire-rope stiffness on the performance of the loading system and the design of the controller,it is concluded that the frequency width minifies and hysteresis increases with the wire-rope stiffness decreases.Then a variable gain feed-forward compensation con-troller was designed.Experimental results show that this method can improve force tracking accuracy of the system.The paper provides a theoretical basis for high performance electric hydraulic loading system controller design with variable stiffnesses.
