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什么因素会对搅拌车转弯制动性能的影响

发布时间:2022-07-13 来源:http://www.jfhntjbc.com/ 浏览量:

概述:影响搅拌车弯道制动的因素有搅拌车的质心位置、弯道半径、弯道行驶车速和制动力强度,因此本节通过利用 ADAMS 来找出搅拌车满载弯道制动
影响搅拌车弯道制动的因素有搅拌车的质心位置、弯道半径、弯道行驶车速和制动力强度,因此本节通过利用 ADAMS 来找出搅拌车满载弯道制动时,质心不同位置、不同弯道半径、不同行驶速度、不同制动踏板力时的安全临界状态,在这里有三个变量,固定三个变量,改变第四个变量的方法来找到。
The factors that affect the bending braking of the mixer truck include the position of the center of mass of the mixer truck, the radius of the curve, the driving speed in the curve and the strength of the braking force. Therefore, this section uses Adams to find out the safety critical state when the mixer truck is braking in the curve with full load, when the center of mass is at different positions, the radius of the curve, the driving speed and the brake pedal force are different. Here there are three variables, fix the three variables and change the fourth variable.
通过改变一个因素的值,固定其他因素的值来仿真该影响因素对搅拌质心高度的影响。以下为转弯速度、转弯半径、搅拌车质心侧向偏移量、质心高度偏移量对搅拌车转弯制动性能的影响:
By changing the value of one factor and fixing the value of other factors, the influence of this influencing factor on the height of mixing center of mass is simulated. The following are the effects of turning speed, turning radius, lateral offset of mass center and height offset of mass center of the mixer on the turning braking performance of the mixer:
搅拌车载重对搅拌车转弯制动的影响仿真分析搅拌在空载转弯制动时其可以得到的不使车轮抱死的大制动减速度为 0.4916,制动距离为 5.884m,而随着搅拌车载重的增加,其制动减速度随之减小,制动距离随之增加。
Simulation analysis of the influence of mixer truck load on the turning braking of mixer truck; when the mixer is under no-load turning braking, the large braking deceleration without locking the wheels is 0.4916 and the braking distance is 5.884m. With the increase of mixer truck load, the braking deceleration decreases and the braking distance increases.
这是因为在搅拌车空载时其质心比较低,随着载重的增加,其质心高度也会增高,这样由于离心力造成的内外侧车轮的载荷转移增加,因此在制动时前后轴的载荷转移很容易造成右后车轮的地面制动力小于制动器制动力,从而产生搅拌车右后车轮的抱死现象。
This is because the mass center of the mixer truck is relatively low when it is unloaded. With the increase of load, the height of its mass center will also increase, so the load transfer of the inner and outer wheels caused by centrifugal force increases. Therefore, the load transfer of the front and rear axles during braking is easy to cause the ground braking force of the right rear wheel to be less than the braking force of the brake, resulting in the locking phenomenon of the right rear wheel of the mixer truck.
自动搅拌车
如果搅拌车载重在 25t 以下时其制动距离变化速度比较平缓,而当载重超过 25t 以后,其制动距离增长速度变快,因此得出超载对搅拌车弯道制动影响程度较大,为了安全应严禁超载。
If the load of the mixer truck is below 25t, the change speed of its braking distance is relatively slow, and when the load exceeds 25t, the growth speed of its braking distance becomes faster, so it is concluded that overload has a great impact on the bending braking of the mixer truck, and overload should be strictly prohibited for safety.
搅拌车速度对其转弯制动的影响仿真分析在相同的弯道半径条件下,搅拌车出现车轮抱死的大制动减速度随着车速的增加降低,车速越快,其减小量越大,而制动距离随着车速的增加而增加。这是因为搅拌车转弯行驶受到的离心力与搅拌车的车速的平方成正比。
Simulation analysis of the influence of mixer speed on its turning braking under the same curve radius, the large braking deceleration of mixer with wheel locking decreases with the increase of vehicle speed. The faster the vehicle speed, the greater the reduction, and the braking distance increases with the increase of vehicle speed. This is because the centrifugal force received by the mixer when turning is proportional to the square of the speed of the mixer.
自动搅拌车车速越快,其所受的离心力越大,搅拌车内外侧车轮载荷转移越大,在进行制动动作时,很小的制动减速度就可以导致右侧车轮制动器制动力大于地面附着力而发生车轮抱死的情况,如果搅拌车车速大约为38km/h 时是一个转折点,在该点之后,制动距离随车速的增加上升的速度大于在该点之前。
The faster the speed of the automatic mixer truck is, the greater the centrifugal force it receives, and the greater the load transfer of the wheels on the inner and outer sides of the mixer truck. During the braking action, a small braking deceleration can cause the braking force of the right wheel brake to be greater than the ground adhesion, resulting in wheel lockup. If the speed of the mixer truck is about 38km/h, it is a turning point. After this point, The braking distance increases faster with the increase of vehicle speed than before this point.
以上就是今天为大家介绍的关于问题以及注意事项的全部内容,希望对大家能有所帮助,想要了解更多内容可以电话联系我们或者关注我们的网站http://www.jfhntjbc.com,我们的工作人员会及时与您取得联系。
The above is all about the problems and precautions introduced to you today. I hope it can help you. If you want to know more, you can contact us by phone or follow our website http://www.jfhntjbc.com , our staff will contact you in time.

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