發(fā)布時間：2018-11-16 13:37

【摘要】：懸架技術(shù)是汽車起重機底盤的關(guān)鍵技術(shù)。針對大噸位汽車起重機特殊使用要求,油氣懸架和鋼板彈簧懸掛被廣泛的接受和應(yīng)用。油氣懸架具有較好的彈性特性,可以提高車輛舒適性、操縱穩(wěn)定性等性能,更重要的是它能方便地控制汽車運動姿態(tài)、實現(xiàn)多軸車輛的軸荷均布,使得整車的通過性和適應(yīng)性大大提高。鋼板彈簧懸架適用范圍廣,安裝和維護成本低,因而被廣泛采用,但是鋼板彈簧懸架不能很好的適應(yīng)汽車起重機的特殊需求。 本文查閱了大量懸架技術(shù)的資料與文獻,基于目前懸架技術(shù)的分析,包括油氣懸架和鋼板彈簧懸架的特性分析,總結(jié)出其各自的工作特性和應(yīng)用特性。結(jié)合100噸汽車起重機底盤使用情況,給出懸架系統(tǒng)設(shè)計的總體要求,得出軸荷均布問題是汽車起重機底盤懸架系統(tǒng)要重點解決的問題。 首先,通過靜態(tài)受力分析確定軸距；然后,結(jié)合整車結(jié)構(gòu)形式確定懸架系統(tǒng)布置方案；最后,通過初步的動態(tài)分析,給出油氣懸架和鋼板彈簧懸架混合使用時相互之間的匹配要求。通過對混合懸架系統(tǒng)的動態(tài)仿真,選取比較容易調(diào)整和控制的油氣彈簧參數(shù),改變油氣懸架阻尼特性,保證了整車前、后懸架系統(tǒng)動態(tài)響應(yīng)的一致性,確保整車懸架系統(tǒng)在靜載和動載情況下都能滿足起重機的特殊要求。
[Abstract]:Suspension technology is the key technology of truck crane chassis. Oil-gas suspension and leaf-spring suspension are widely accepted and applied to large-tonnage truck cranes. The hydro-pneumatic suspension has better elastic characteristics, which can improve the vehicle comfort and control stability. More importantly, it can easily control the motion posture of the vehicle and realize the uniform distribution of the axle load of the multi-axle vehicle. So that the passage and adaptability of the whole vehicle is greatly improved. Leaf spring suspension is widely used because of its wide application range, low installation and maintenance cost, but it can not meet the special needs of truck crane. Based on the analysis of suspension technology at present, including the characteristic analysis of oil and gas suspension and leaf spring suspension, their working characteristics and application characteristics are summarized in this paper. Combined with the application of 100 ton truck crane chassis, the general requirements of suspension system design are given, and it is concluded that the problem of uniform distribution of shaft load is an important problem to be solved in automobile crane chassis suspension system. Firstly, the wheelbase is determined by static force analysis, and then, the suspension system layout scheme is determined in combination with the whole vehicle structure. Finally, through preliminary dynamic analysis, the matching requirements between oil and gas suspension and leaf spring suspension are given. Through the dynamic simulation of the hybrid suspension system, the parameters of the oil and gas spring which are easy to adjust and control are selected to change the damping characteristics of the suspension and ensure the consistency of the dynamic response of the suspension system before and after the vehicle. Ensure that the whole vehicle suspension system can meet the special requirements of crane under static and dynamic load.
【學位授予單位】：大連理工大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH213.6

【參考文獻】

相關(guān)期刊論文 前7條

1 阮春紅,左軍,曹樹平;重型越野車油氣彈簧的結(jié)構(gòu)設(shè)計與靜特性分析[J];機床與液壓;2001年01期

2 鄒游,喻凡,孫濤;非線性油氣懸架的平順性仿真研究[J];計算機仿真;2004年10期

3 王國軍;陳欣;徐安桃;王江;;多軸汽車軸荷的合理分配與確定[J];軍事交通學院學報;2009年02期

4 鄒曉華,張立軍,鄭春嬌;車輛懸架系統(tǒng)振動仿真[J];遼寧工學院學報;2004年02期

5 劉希太,祖炳潔,鄭明軍;全地面汽車起重機油氣懸掛的性能研究[J];煤礦機械;2005年09期

6 于安和;桂良進;范子杰;;鋼板彈簧剛度特性的有限元分析[J];汽車技術(shù);2007年02期

7 劉勛;黃世偉;朱利靜;趙傳林;屈玉鋒;;半掛車鋼板彈簧及輪胎的剛度等效分析[J];專用汽車;2008年04期

相關(guān)碩士學位論文 前2條

1 肖海萍;汽車底盤分析方法及其相似性研究[D];合肥工業(yè)大學;2006年

2 劉斌;輕型汽車前懸架設(shè)計分析[D];河北工業(yè)大學;2006年

，

本文編號：2335650