摘 要：針對電動負載模擬器中采用的一種扭矩合成裝置，分析其在不同輸入條件下扭矩的合成效率。利用Solidworks軟件建立三維模型，通過Parasolid格式將模型轉(zhuǎn)入到ADAMS中，以Hertz彈性碰撞理論為基礎(chǔ)，對齒輪之間的接觸力進行計算并施加約束，最終建立扭矩合成裝置的動力學(xué)模型，通過輸入不同大小、方向、頻率、相位等各種形式的扭矩，得到輸出扭矩的動態(tài)響應(yīng)特性曲線。仿真結(jié)果表明：仿真值與理論值誤差在1%之內(nèi)，證明該扭矩合成裝置在各種不同輸入條件下都能高效地實現(xiàn)扭矩合成的目的，所建模型是可靠、準確的。研究結(jié)果對裝置的使用以及進一步的結(jié)構(gòu)優(yōu)化設(shè)計具有一定的指導(dǎo)意義。
關(guān)鍵詞：電動負載模擬器；扭矩合成裝置；ADAMS；接觸力；動力學(xué)仿真
文獻標志碼：A 文章編號：1674-5124（2015）12-0087-04
Dynamic simulation analysis of torque synthesizer device based on ADAMS
LIU Zhikai1，2， YANG Ruifeng1，2， GUO Chenxia1，2， ZHANG Peng1，2， ZHANG Xinhua3
（1. School of Instrument and Electronics，North University of China，Taiyuan 030051，China；
2. Key Laboratory of Instrumentation Science & Dynamic Measurement，Ministry of Education，
North University of China，Taiyuan 030051，China；
3. Beijing Automation Control Equipment Research Institute，Beijing 100000，China）
Abstract: A torque synthesizer was used in an electric load simulator to analyze its synthesis efficiency under different input conditions. A 3D model was established with Solidworks and transferred from Parasolid into ADAMS. Then， the contact force between gears was calculated and constraints were imposed to set up a dynamic model for torque synthesizer based on the Hertz elastic collision theory. The torque of different sizes， orientation， frequency， phases and forms were input to get the dynamic response curve of output torque. Simulation results show that the deviation between simulation value and theoretical value is within 1%， which has proved that the torque synthesizer is efficient in all input conditions and the model established is reliable and accurate. The study results are conducive for the use and further structural optimization of torque synthesizers.
Keywords: electric load simulator； torque synthesizing means； ADAMS； contact force； dynamic simulation
