机床与液压
機床與液壓
궤상여액압
MACHINE TOOL & HYDRAULICS
2014年
18期
17-23
,共7页
邹喜红%熊锋%余勇%刘栓起%彭吉刚
鄒喜紅%熊鋒%餘勇%劉栓起%彭吉剛
추희홍%웅봉%여용%류전기%팽길강
AMT执行机构%多轴向多激励%道路模拟%时频域误差加权
AMT執行機構%多軸嚮多激勵%道路模擬%時頻域誤差加權
AMT집행궤구%다축향다격려%도로모의%시빈역오차가권
AMT actuator%Multi-axial multi-excitations%Road simulation%Time-frequency domain error weighting
AMT执行机构的振动疲劳可靠性是AMT最重要的性能之一，为对AMT执行机构的振动疲劳可靠性进行准确高效的分析和评价，提出了基于时频域误差加权远程参数方阵控制（RPC）的AMT执行机构多轴向多激励道路模拟试验方法。针对轿车AMT建立了其道路载荷谱采集方法，在东风汽车试验场采集了AMT及其执行机构实际道路行驶振动载荷谱，并对载荷谱进行了预处理和重复性检验，获取了AMT执行机构室内道路模拟试验期望响应信号。针对AMT执行机构实际道路行驶时的振动受载特征，设计开发了AMT执行机构多轴道路模拟试验台，结合采集的实际道路行驶载荷谱和开发的AMT执行机构多轴道路模拟试验台，采用时域和频域误差加权系数均为0．5的远程参数方阵控制（RPC）载荷谱模拟迭代方法在室内准确高效地再现了AMT执行机构实际行驶载荷谱，从而建立了AMT执行机构多轴向多激励道路模拟试验方法，为室内准确高效考核轿车AMT执行机构振动疲劳可靠性提供了一种行之有效的手段和方法。
AMT執行機構的振動疲勞可靠性是AMT最重要的性能之一，為對AMT執行機構的振動疲勞可靠性進行準確高效的分析和評價，提齣瞭基于時頻域誤差加權遠程參數方陣控製（RPC）的AMT執行機構多軸嚮多激勵道路模擬試驗方法。針對轎車AMT建立瞭其道路載荷譜採集方法，在東風汽車試驗場採集瞭AMT及其執行機構實際道路行駛振動載荷譜，併對載荷譜進行瞭預處理和重複性檢驗，穫取瞭AMT執行機構室內道路模擬試驗期望響應信號。針對AMT執行機構實際道路行駛時的振動受載特徵，設計開髮瞭AMT執行機構多軸道路模擬試驗檯，結閤採集的實際道路行駛載荷譜和開髮的AMT執行機構多軸道路模擬試驗檯，採用時域和頻域誤差加權繫數均為0．5的遠程參數方陣控製（RPC）載荷譜模擬迭代方法在室內準確高效地再現瞭AMT執行機構實際行駛載荷譜，從而建立瞭AMT執行機構多軸嚮多激勵道路模擬試驗方法，為室內準確高效攷覈轎車AMT執行機構振動疲勞可靠性提供瞭一種行之有效的手段和方法。
AMT집행궤구적진동피로가고성시AMT최중요적성능지일，위대AMT집행궤구적진동피로가고성진행준학고효적분석화평개，제출료기우시빈역오차가권원정삼수방진공제（RPC）적AMT집행궤구다축향다격려도로모의시험방법。침대교차AMT건립료기도로재하보채집방법，재동풍기차시험장채집료AMT급기집행궤구실제도로행사진동재하보，병대재하보진행료예처리화중복성검험，획취료AMT집행궤구실내도로모의시험기망향응신호。침대AMT집행궤구실제도로행사시적진동수재특정，설계개발료AMT집행궤구다축도로모의시험태，결합채집적실제도로행사재하보화개발적AMT집행궤구다축도로모의시험태，채용시역화빈역오차가권계수균위0．5적원정삼수방진공제（RPC）재하보모의질대방법재실내준학고효지재현료AMT집행궤구실제행사재하보，종이건립료AMT집행궤구다축향다격려도로모의시험방법，위실내준학고효고핵교차AMT집행궤구진동피로가고성제공료일충행지유효적수단화방법。
Vibration fatigue reliability of AMT actuator is one of the most significant performance of AMT.For accurate and efficient analysis and evaluation of AMT actuator vibration fatigue reliabili-ty,multi-axial multi-excitations road simulation test method for AMT actuator based on time-fre-quency domain error-weighted remote parameter square matrix control (RPC)was put forward. AMT actual road load spectra acquisition method was established and AMT actuator actual driving road load spectra were col ected in Dongfeng automobile testing field.The col ected load spectra were conducted with pretreatment and repeatability inspection and thus expected response sig-nals for indoor road simulation test were obtained.AMT multi-axes road simulation test bench was designed and developed based on the AMT actuator actual road vibration load characteristics. Combined with the col ected real road load spectra and developed AMT actuator multi-axes road simulation test bench,load spectrum simulation iteration method based on remote parameter square matrix control with time-frequency domain error weighting coefficients 0.5 respectively succeeded in achieving accurate and efficient reproducing of AMT actuator actual driving road load spectra,therefore muti-axial multi-excitations road simulation test method for AMT actuator was established and thus provided an accurate and efficient new method for vehicle AMT actuator vibration fatigue reliability assessment.
