摘 要
本次設(shè)計題目是EQ1092貨車的前后懸架系統(tǒng)的設(shè)計。
所設(shè)計懸架系統(tǒng)的前懸架采用鋼板彈簧非獨(dú)立式懸架。后懸是由主副簧組成，也是非獨(dú)立懸架。首先確定懸架的主要結(jié)構(gòu)形式，然后對主要性能參數(shù)進(jìn)行確定。在前懸的設(shè)計中首先設(shè)計了鋼板彈簧，材料和許用應(yīng)力，和方案布置的設(shè)計；還有減振器的選擇。在后懸架系統(tǒng)設(shè)計中主要對主副鋼板彈簧進(jìn)行了設(shè)計，特別是鋼板彈簧的剛度比分配計算和剛度的校核。
最后對懸架系統(tǒng)進(jìn)行了平順性分析，目的是判斷所設(shè)計的懸架平順是否滿足要求。在平順性分析時運(yùn)用了時域分析方法，采用了兩個自由度，最后通過編程計算，結(jié)果是沒有不舒適。因而對提高汽車的動力性、經(jīng)濟(jì)性和操縱穩(wěn)定性是有利的。

關(guān)鍵詞：懸架設(shè)計；鋼板彈簧；平順性；貨車

 
Abstract
The title of this thesis is the design of front and rear suspension systems of EQ1092 truck.
The front suspension system is the leaf spring, dependent suspension. The rear suspension system consists of the main spring and the helper spring and it is also dependent suspension. In the procedure of the design we made certain the structural style of the suspension system in the first, then we made certain the main parameters. In the design of the front suspension we designed the leaf spring firstly, material and allowable stress and the design of scheme , moreover the design of shock absorber. In the design of rear suspension we carried out the design of the main spring and the helper spring, specially the counting of distribution of angular rigidity between the main spring and the helper spring and the checking of the angular rigidity.
In the final design stage, we implement the analysis of suspension ride performance. The aim is whether suspension ride quality meets to the performance requirement. The ride performance analysis adopts the methods with time domain and with two degree of freedoms by computer program. The results indicate that there is no uncomfortableness for the car on road. Therefore, it is helpful for the dynamical, economical and handling performances of the studied vehicle.

Key words: Suspension Design; Leaf spring; Ride Performance; Truck

目 錄
第1章 緒 論 1
第2章 懸架系統(tǒng)的結(jié)構(gòu)與分析 3
2.1 懸架的作用和組成 3
2.2 汽車懸架的分類 3
2.3 懸架的設(shè)計要求 4
2.4 懸架主要參數(shù) 4
2.4.1 懸架的靜撓度fc 4
2.4.2 懸架的動撓度 fd 5
2.4.3 懸架彈性特性 5
2.4.4 后懸架主、副簧剛度的分配 5
2.4.5 懸架側(cè)傾角剛度及其在前、后軸的分配 6
第3章 前后懸架系統(tǒng)的設(shè)計 7
3.1前懸架系統(tǒng)設(shè)計 7
3.1.1鋼板彈簧的設(shè)計 7
3.1.2.減振器的選用 12
3.2后懸架系統(tǒng)設(shè)計 13
3.2.1主、副鋼板彈簧結(jié)構(gòu)參數(shù) 13
3.2.2鋼板彈簧的強(qiáng)度驗算 13
第4章 平順性分析和編程 15
4.1平順性的定義 15
4.2平順性的研究內(nèi)容 15
4.3平順性的研究分析 16
第5章 結(jié)論 21
參考文獻(xiàn) 22
致 謝 23
附 錄Ⅰ：外文資料 24
附 錄 Ⅱ：中文翻譯 31
附 錄 Ⅲ： 程序 36