【摘要】：本文研究的六維加速度傳感器為并聯(lián)機(jī)構(gòu),旨在用于低頻作業(yè)裝備下的小量程加速度測量。為了能夠準(zhǔn)確地獲取傳感器的測量屬性,采用并聯(lián)機(jī)構(gòu)的守恒轉(zhuǎn)換的方法求解傳感器的剛度矩陣,通過對傳感器的簡化建立系統(tǒng)的無阻尼自由振動(dòng)模型,獲得傳感器固有頻率求解的理論表達(dá)式,對雙懸臂梁彈性元件進(jìn)行分析,計(jì)算獲得懸臂梁彎曲應(yīng)力與上平臺加速度加載的關(guān)系曲線,利用有限元分析仿真確定傳感器的測量范圍,經(jīng)過實(shí)驗(yàn)驗(yàn)證,證明該傳感器在16 Hz,x軸方向0~10 m/s2的加載狀態(tài)下傳感器測量電壓與加速度加載量之間具有良好的線性關(guān)系,傳感器的線加速度精度為1.3%。
[Abstract]:The six-dimensional acceleration sensor studied in this paper is a parallel mechanism, which is designed to be used for small range acceleration measurement under low frequency operating equipment. In order to obtain the measurement properties of the sensor accurately, the stiffness matrix of the sensor is solved by the conservation transformation method of the parallel mechanism, and the undamped free vibration model of the system is established by simplifying the sensor. The theoretical expression of the natural frequency of the sensor is obtained, the elastic elements of the double cantilever beam are analyzed, and the relationship curve between the bending stress of the cantilever beam and the acceleration loading of the upper platform is calculated. The measurement range of the sensor is determined by finite element analysis and simulation. The experimental results show that there is a good linear relationship between the measured voltage and the acceleration loading of the sensor under the loading condition of 0 鈮，

本文編號：2484777