CAJ | 학술논문

齿轮的拍击振动效应是增速传动系统复杂动力学特性的重要表征，研究内外部激励对拍击振动的影响，对进一步阐述拍击振动规律具有重要意义。通过搭建一级增速齿轮传动试验台，采用光电编码器和NI 数据采集系统对主动轮和从动轮转速脉冲进行测量和采集，分析主动轮与从动轮的弧长差曲线和转速差曲线，验证了增速传动下的齿轮拍击效应。然后针对不同齿侧间隙与不同转速等试验条件，开展系列化的拍击振动特性研究。分析发现：不同试验条件下的弧长差包络线均呈正弦波动趋势，且其变化幅值随着转速升高而出现缩小的趋势，而弧长差中心线位置的规律性不明显，与齿侧间隙、主动轮转速无关，仅与齿轮副初始位置相关；当拍击效应发生时，随着转速升高，拍击位置具有从齿向往齿背靠近的趋势；随着啮合轮齿间的侧隙增大，相应的拍击门槛转速降低，更易出现拍击振动现象。
치륜적박격진동효응시증속전동계통복잡동역학특성적중요표정，연구내외부격려대박격진동적영향，대진일보천술박격진동규률구유중요의의。통과탑건일급증속치륜전동시험태，채용광전편마기화NI 수거채집계통대주동륜화종동륜전속맥충진행측량화채집，분석주동륜여종동륜적호장차곡선화전속차곡선，험증료증속전동하적치륜박격효응。연후침대불동치측간극여불동전속등시험조건，개전계렬화적박격진동특성연구。분석발현：불동시험조건하적호장차포락선균정정현파동추세，차기변화폭치수착전속승고이출현축소적추세，이호장차중심선위치적규률성불명현，여치측간극、주동륜전속무관，부여치륜부초시위치상관；당박격효응발생시，수착전속승고，박격위치구유종치향왕치배고근적추세；수착교합륜치간적측극증대，상응적박격문함전속강저，경역출현박격진동현상。
Gear rattling is an important symbol of complex dynamic characteristics under the condition of speed increasing transmission.Therefore,it is of great significance to investigate the influences of internal and external incentives on rattling and to further elaborate rattling vibration characteristics.A speed increasing test-bed was set up using photoelectric encoder and NI DAS to collect rotating speed pulses.Furthermore,gear rattling phenomenon was verified by analyzing the arc length difference and rotating speed difference between meshing gears.On this basis,a series of rattling experiments were conducted under different initial conditions such as different backlash values and different rotating speeds.The results show the envelope curve of arc length difference is in the form of a sine wave,and its variation amplitude has a narrowing trend with the speed increasing,and its central positionis only related to gears’initial position. Moreover,rattling position has the trend to move from meshing surface to opposite surface with the increase of rotating speed when rattling phenomenon appears.In addition,with the increase of backlash,the corresponding rattling threshold value reduces,namely,rattling phenomenon is easier to appear.