The dynamic characteristics of contact force for the flexible joint manipulator of harmonic drives 諧波驅(qū)動柔性關(guān)節(jié)機械臂接觸力的動態(tài)特性
Then , the discussion of the influence of linear part , the lumped mass of the rigid links and the angular acceleration of flexible joint actuators on the non - linear dynamic character of flexible joint manipulator with flexible links is done 問中還就關(guān)節(jié)線性項、桿的集中質(zhì)量和關(guān)節(jié)驅(qū)動加速度對關(guān)節(jié)非線性特性表現(xiàn)的影響進行了討論。
This is not sufficient to represent the dynamic character of flexible joint manipulator because of the complexity of actual joint . in this thesis , an attempt at considering the flexible joint as non - linear torsion spring has been made 而實際上,由于關(guān)節(jié)的復(fù)雜性,線性扭轉(zhuǎn)彈簧并不能完全表現(xiàn)出柔性關(guān)節(jié)機器人的動力學(xué)特性,本文正是針對這一問題,對柔性機器人柔性關(guān)節(jié)的非線性特性進行了研究。
A numerical simulation of a planar 3r manipulator is performed . the results show that the non - linear torsion springs have important influences on the joint error and tip error of manipulators . moreover , the influences of linear part of non - linear , the lumped mass of the rigid links and the angular acceleration of joint actuators on the non - linear dynamic character of flexible joint manipulator are discussed 首先,建立了剛性桿非線性關(guān)節(jié)機器人的動力學(xué)模型,之后通過一平面3r機器人進行了數(shù)值仿真,說明了在一定情況下,關(guān)節(jié)的非線性對剛性桿機器人關(guān)節(jié)變形和末端誤差具有重要影響,并在此基礎(chǔ)上,討論了關(guān)節(jié)線性項、桿的集中質(zhì)量和關(guān)節(jié)驅(qū)動加速度對機器人關(guān)節(jié)非線性特性的影響。
At last , using the two famous cae software adams and ansys , the simulation models of flexible joint manipulator with rigid links and flexible joint manipulators with flexible links are established on the basis of the actual structure . the flow chart of the simulation arithmetic is then presented and two numerical examples are given . in comparison of the simulation results and calculation results , the utility of the calculation model and simulation model have been illustrated 最后,利用著名的多體動力學(xué)仿真軟件adams和有限元分析軟件ansys ,結(jié)合實際結(jié)構(gòu),建立了剛性桿柔性(非線性)關(guān)節(jié)、柔性桿柔性(非線性)關(guān)節(jié)兩種柔性機器人的仿真模型和工作流程圖,分別針對上述實例進行動力學(xué)仿真分析,通過對計算結(jié)果和仿真結(jié)果的比較,驗證了計算模型和仿真模型的正確性。