Design And Transmission Performance Analysis Of Servo Transmission Mechanism Of Aircraft

As an important actuator，aircraft servo is being applied to achieve the pitching,yawing, rolling and other attitude change sports aircraft.Accuracy and precision ofaircraft servo transmission mechanismdirectly affect the flight path precision anddynamic qualityof aircraft. Since the harmonic reducer has the advantage of highprecision, high efficiency, small size and light weight, which has been widely used inelectric servo transmission mechanism of aircraft of each kind of aircraft, but thedisadvantages of its low stiffness, soft and flexible wheel bearings prone to fatiguefailureare also seriously hampered the development of weapons of future models.Aiming at the key common problems of vehicle steering actuator design andhigh-performance needsof high-precision andhigh mobilityfor the servo transmissionmechanism of aircraft in the future，this paper subject to the small teeth differenceplanetary reducer for the study, carry out the design research, of high-precision, highstiffness, high power density and high reliability of the servo transmission mechanismof aircraftthe main contents are as follows:①Against the high power density requirements of servo transmission mechanismof aircraft, small volume, large carrying capacity is the objective function and thetransmission ratio, coincidence degree,tooth profile overlapping interference andinterference of the transition curve are constraint functions, a multi-objectiveoptimization design of gear transmission model is established.Based on this model, thestructure parameters of the drive system areoptimized.②Complete the design of the specific parts and the study of the layoutprogramofservo transmission mechanism of aircraft. Use Solidworks tocomplete thethree-dimensional solid modeling of important parts and virtual assembly.③Complete the kinematics simulationanalysisof servo transmission mechanism ofaircraft.Use ADAMS to obtain exercise performanceof servo transmission mechanismof aircraft under simulated load conditions. At the same, through their specificsportcharacterization curve, carry out the predictive analysis of performance of steeringgear drive mechanism under actual operating conditions.④Based on ANSYS Workbench, completethe simulation analysis of dynamicperformanceof servo transmission mechanism of aircraft under extreme environmentalconditions.Mainly include multi-body contact with static analysis, modal analysis, dynamic response analysis under the mechanical environment and thermal deformationanalysis, that verifythe environmental adaptability and structural stability ofservotransmission mechanism of aircraft.⑤Completethe deformation coordination design of the servo transmissionmechanism of aircraft. Carry out the research of the compensateand control ofbacklashof servo transmission mechanism of aircraft. Considering heat distortion,deformation compatibility equations are derived. Test the backlash of the servotransmission mechanism of aircraftbefore and after optimization to verify the effect ofdeformation coordination.