起重运输机械
起重運輸機械
기중운수궤계
HOISTING AND CONVEYING MACHINERY
2013年
10期
24-30
,共7页
带式输送机%盘式制动系统%开环控制%仿真分析
帶式輸送機%盤式製動繫統%開環控製%倣真分析
대식수송궤%반식제동계통%개배공제%방진분석
belt conveyor%disc braking system%open-loop control%simulation analysis
为研究带式输送机盘式制动系统的控制特性，建立了盘式制动系统的AMEsim仿真模型，并进行了仿真分析，研究了液压缸进口压力和位移随时间的变化规律，突然停电时节流阀不同开度、蓄能器不同充气压力对制动性能的影响，正常制动时的正压力与速度变化规律，以及采用开环和闭环控制时的速度控制特性。结果表明采用开环控制时系统虽然稳定，但响应速度较慢，稳态误差较大。要获得较理想的控制效果，就要采用闭环控制策略。
為研究帶式輸送機盤式製動繫統的控製特性，建立瞭盤式製動繫統的AMEsim倣真模型，併進行瞭倣真分析，研究瞭液壓缸進口壓力和位移隨時間的變化規律，突然停電時節流閥不同開度、蓄能器不同充氣壓力對製動性能的影響，正常製動時的正壓力與速度變化規律，以及採用開環和閉環控製時的速度控製特性。結果錶明採用開環控製時繫統雖然穩定，但響應速度較慢，穩態誤差較大。要穫得較理想的控製效果，就要採用閉環控製策略。
위연구대식수송궤반식제동계통적공제특성，건립료반식제동계통적AMEsim방진모형，병진행료방진분석，연구료액압항진구압력화위이수시간적변화규률，돌연정전시절류벌불동개도、축능기불동충기압력대제동성능적영향，정상제동시적정압력여속도변화규률，이급채용개배화폐배공제시적속도공제특성。결과표명채용개배공제시계통수연은정，단향응속도교만，은태오차교대。요획득교이상적공제효과，취요채용폐배공제책략。
To study the control property of disc braking system of the belt conveyor,the AMEsim simulation model is built for the disc braking system for simulation analysis,with the change rule of inlet pressure and displacement of hydrau-lic cylinder over time researched,as well as effect of different openings of the throttle valve and different charging pressure on the braking property in the case of sudden blackout,positive pressure and speed change rule at normal braking,and speed control property by opening-loop and closed-loop controls.The result shows that the system is stable at opening-loop control,but the response speed is slow,with large steady-state error.The closed-loop control is better for obtaining ideal control effect.
