【正文】 shock absorber by the performance of the main characteristics that, Characteristics of the shock absorber shock absorber means with relative movement of the displacement or relative velocity with the corresponding resistance resulting from the work of the relationship between, The relationship between these two indicator known as the shock absorber characteristics and speed characteristics. Shock absorber to improve the performance, To ensure the quality, In addition to advanced design, production process, Means of modern management, As well as advanced test and test equipmentTo detect characteristics of the shock absorber with the design requirements, Commonly used testbed general hydraulic shock absorber for dualcolumn structure, The lower cost structure, Small footprint. Jiangxi, a shock absorber in accordance with the requirements of the production plant, In its original twocolumn structure of the hydraulic shock absorber on the basis of testbed transformation. The redesign of the puter detection system, And the application of the shock absorber shock absorber test bench analysis of the quality of the process methodology. This article describes the main technical. 1 Testbed design of the puter detection system 1 ? 1 System Components Imposed on the shock absorber test bed approach is inspired in its one end to impose similar to simple harmonic movement, In this study, using a simple structure, Easy to implement on the heart of the crank linkage system as an incentive. According to the original testbed instability detection system performance, Graphic distortion characteristics and the speed the more serious the situation is not convenient, The redesign of the puter detection system, System Components Figure 1, The system 本科生畢業(yè)設(shè)計（論文） 26 uses microputer as the main monitoring and control machines, Optional PS2112 16 Road, A / D conversion board and travel as a shock absorber damping force of the two ADC signal, The converter board is programmable interface board, Its resolution of 12, Conversion time of about 25μs, Of 5 ~ +5 V analog signal for analogtodigital conversion, Systematic error of less than 0 ? 1%, to ensure that the detection accuracy. Shock absorber damping force sensor using strain la (pressure) force sensor, Can be used for different force sensor to change the measuring range, Can be used for different force sensor to change the measuring range, Strain gauge used for the preamplifier, Output of 5 ~ +5 V, Measuring accuracy of less than 0 ? 5%. Damper displacement sensor using a differential transformer type displacement sensor, For different displacement sensor can change the maximum range, Output voltage of 5 ~ +5 V, Determination of the accuracy of displacement is less than 0 ? 5%, FM is used in a certain scope for regulating frequency vibration table, Excitation in order to adjust the speed, you can both by regulating the shaking table of the relative position of flange exciting journey to change in order to adjust the speed of vibration, speed adjustment range of excitation 0 ~ 1 ? 2m / s. System features include: system ready to test the query, the structure of output, the system calibration, analysis and test results from the system. 1 ? 2 body motion error pensation In accordance with the provisions of China39。 顯然機 構(gòu)誤差包括位移誤差、速度誤差和相位誤差 ,并且誤差隨曲桿比變化而有所變化。 實驗臺在工作的工程中，電動機所受載荷為中等沖擊載荷。 圖 曲柄 連桿 雙平衡塊力學(xué)模型 下面對此系統(tǒng)慣性作一分析 : x向慣性力之和 ∑ EFx =m1 xd1 +m2 xd2 +m3 xd3 +m4 xd4 (45) y向慣性力之和 ∑ EFy =m1 yd1 +m2 yd2 +m3 yd3 +m4 yd4 (46) 其中 x1 =hcosXt x2 =hcosXt+lcosU x3 =HcosXt x4 =hcosXtLcosU y1 =hsinXt y2 =0 y3 =HsinXt y4 =hsinXt+LsinU 幾何條件 本科生畢業(yè)設(shè)計（論文） 15 sinU= lh sinXt cosU= Usin1 2? 41 （ lh ） 2 (1cos2 Xt) 要使整體慣性力平衡 ,則 ∑ EFx =0 (47) ∑ EFY =0 (48) 把上述坐標及幾何條件代入式 (7)、式 (8),并忽略二階小量 O( lh )2 ,可得 x向 (m1 h+m2 hm3 H+m4 h)X2 cosXt=0 (49) y向 [m1 hm3 H+m4 h(1+ lL )]X2 sinXt=0 (410) 故有 m3 H=(m1 +m2 +m3 )h (411) m4 L=m2 l (412) 因此 ,只要選擇 (m3 ,H)和 (m4 ,L)使之滿足式 (11)、式 (12)即可使系統(tǒng)整體慣性力達到平衡。 曲柄連桿滑塊機構(gòu)的設(shè)計是實驗臺關(guān)鍵的環(huán)節(jié)，它既是傳力件，又是運動件，因此其工作可靠性就決定了實驗臺工作的可靠性， 如圖 所示。 電動機類型的選擇要從負載的要求出發(fā)，考慮工作條件、負載性質(zhì)生產(chǎn)工藝、供電情況等。測試信號作為輸入信號進入系統(tǒng)后 ,經(jīng)過一系列變換轉(zhuǎn)變?yōu)檩敵鲂盘枺瑫r還包含了兩方面的誤差：一是輸入信號的誤差經(jīng)系統(tǒng)傳遞函數(shù)轉(zhuǎn)換而來；二是系統(tǒng)中 本科生畢業(yè)設(shè)計（論文） 8 硬件本身引起的制造精度或轉(zhuǎn)換精度引起的誤差。位移計 9 (4)減振器試驗臺測控系統(tǒng)軟硬件設(shè)計。目前，國外先進工業(yè)化國家液壓減振器正朝著充氣式減振器、可調(diào)減振器（如載荷感應(yīng)式、位移依存式、位置依存式等）及自適應(yīng)減振器（如電流變減振器、磁流變減振器等）的方向發(fā)展。懸架系統(tǒng)實現(xiàn)了車身和車輪之間的彈性連接和彈性支承，因而當車輪行駛在凸凹不平的路面而受到復(fù)雜激勵時，懸架裝置就會有效地抑制和降低車身和車輪的動載，衰減車身和車輪的振動，從而保證車輛行駛的舒適性和安全性。 Chapter VIII, Conclusion. Reference to the design of the main shock absorber test stand and content related materials. Needed to calculate the main parameters, Connecting rod and crank strength checking agencies. Make testbed to meet safety standards. CAXA use mapping, Draw assembly drawing and parts drawing. Combination of book knowledge and access to relevant information, Balance out the design of testbed absorber. Key words： Balancing technology。 本次畢業(yè)設(shè)計的題目是 基于動平衡減振器試驗臺 。 connecting rod 本科生畢業(yè)設(shè)計（論文） III 目 錄 第一章 緒論 ............................................................................................................. 1 懸架減振器的功用 ..................................................................................... 1 國內(nèi)外現(xiàn)狀及其發(fā)展趨勢 ......................................................................... 2 減振器試驗臺的設(shè)計方案 ......................................................................... 5 第二章 減振器試驗臺的方案分析 ......