【摘要】：鉸接轉(zhuǎn)向機(jī)構(gòu)是鉸接車重要組成部分之一,既對(duì)整車的動(dòng)力性、轉(zhuǎn)向穩(wěn)定性產(chǎn)生重要影響,也是整車安全運(yùn)行的重要影響因素。以油缸鉸接點(diǎn)位置為變量,建立鉸接轉(zhuǎn)向機(jī)構(gòu)優(yōu)化設(shè)計(jì)數(shù)學(xué)模型,分析變量對(duì)轉(zhuǎn)向過程系統(tǒng)消耗的平均功率、最大轉(zhuǎn)向角和最大行程差等幾項(xiàng)動(dòng)態(tài)性能指標(biāo)的影響。分析數(shù)據(jù)表明,鉸接點(diǎn)位置對(duì)平均功率和最大行程差影響較大。在此基礎(chǔ)上以轉(zhuǎn)向過程的最大行程差和平均功率為目標(biāo)函數(shù),在一定的約束條件下,包括邊界條件約束、油缸結(jié)構(gòu)尺寸約束、伸縮比和傳力角度約束等,對(duì)轉(zhuǎn)向機(jī)構(gòu)進(jìn)行了優(yōu)化,優(yōu)化后改變了油缸鉸接點(diǎn)位置,并使最大行程差減少39.55%,消耗的平均功率減少4.99%。
[Abstract]:Hinge steering mechanism is one of the important parts of articulated vehicle, which not only has an important influence on the vehicle's power performance and steering stability, but also plays an important role in the safe operation of the whole vehicle. A mathematical model for optimal design of hinged steering mechanism is established with the position of the hinge point of the cylinder as the variable. The influence of the variables on the dynamic performance indexes such as the average power consumption, the maximum steering angle and the maximum stroke difference of the steering process system are analyzed. The results show that the position of hinge point has great influence on average power and maximum stroke difference. On this basis, the maximum stroke difference and the average power of the steering process are taken as the objective functions. Under certain constraints, including the boundary constraints, the cylinder structure size constraints, the telescopic ratio and the transmission angle constraints, etc. The steering mechanism is optimized, the position of the hinge point of the cylinder is changed after the optimization, and the maximum stroke difference is reduced by 39.55 and the average power consumed is reduced by 4.99.
【作者單位】： 江西科技學(xué)院汽車工程學(xué)院;
【基金】：江西省自然科學(xué)基金資助項(xiàng)目(20151BAB207040) 江西科技學(xué)院“汽車類學(xué)科協(xié)同創(chuàng)新”專項(xiàng)課題(xtcx201306)
【分類號(hào)】：U463.4

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