adams问题补充(Adams questions added)
Rearch on dynamic performance and crash safety of electric bicycle under man vehicle road environment
Analysis of bicycle frame bad on ADAMS and ANSYS
Joint simulation of lf balancing dual wheel electric vehicle system bad on ADAMS and Matlab
Application of ADAMS software in dynamic simulation analysis of micro electric vehicle
Steering system design and ADAMS simulation of micro inverted three wheeled electric vehicle
Rearch on the control of running mechanism of two wheeled electric vehicle
Master's performance test and analysis system for electric vehicles
A review of two wheeled lf balancing robots a review of the stability control of two wheeled lf balancing robots
Rearch on control method of two wheeled robot bad on sliding mode strategy
孟尝Application of DSP in parallel dual wheeled electric vehicle control system
Rearch on vehicle handling stability bad on Virtual张飞老婆
Prototyping Technology
Major: Vehicle Engineering三百字周记
Keywords: virtual prototype, vehicle multi-body system dynamics, handling stability, electric power steering, PID control
Classification number: U469.4
Rearch on vehicle handling stability bad on Virtual Prototyping Technology
Rearch on joint simulation of EPS bad on ADAMS and MATLAB红草止鼾胶囊
Reduction Ratio is rack translation 1mm, steering wheel turn angle (in radians)
So the Reduction Ratio unit should be rad/mm, not 1
The rack ratio is ud in vehicle simulation to define the variable (displacement, force, etc.) input of the steering column to control.
Reduction ratio for steering input.
For rack and pinion steering, it ems that the curve and the power curve of the template in the share can not be ud to achieve the steering back and steering handiness. I e an article written before a steering column and a steering column with a three force, and I don't know how to I don't
know if you feel the same way
Left_tire_forces inside the lateral, you can e the lateral force of the tire
Cornering force refers to the steering resistance of the tire, not the lateral force
bb霜是干嘛用的At the static load tup interface, the cornering force (steering force at the tire ground) includes the static friction torque,
Blue for no power, red for power, you can obrve, without power when the steering wheel required to enter a greater torque, this is clearly established.
春节北京旅游攻略自由行
At the same time, some problems are found in the middle of the simulation results. For example, the input torque of the steering wheel is obrved, and the maximum is 300N-mm, 0,3N-m,
It's obviously small. Another angel=0 degrees, that is, the steering wheel in the middle, the steering wheel input torque is 0, in other words, with only a little force, steering wheel木的拼音
It starts to rotate. This ignores the existence of static friction resistance between the tire and the road. Only when the input torque is greater than a certain value will the steering wheel start
Turn.
Analysis reason:
Adams is actually a parameterized model, and the accuracy of the simulation results is related to the parameters that are filled. The mechanical parameters are better, fill in the wheelba, load,
The key is that the tire parameters on the static load ttings interface are not filled. The tires are important components of the car, and its structural parameters and
Mechanical characteristics determine the main driving performance of a car.
So the problem that needs to be solved now is..,
How do you determine the correct tyre parameters on the static load ttings interface, including back torque, steering force?,
Brake force, traction force, vertical input, vertical input, overturning torque, rolling resistance, lateral force, and lateral force acting on the radius of the carcass.
Since my simulation condition is a local steering on the plane, the speed is 0, so the braking force and traction force can not be filled. Due to the study of steering performance, rather than
Ride comfort, so vertical input lection and vertical input can not be filled. Since the model is on the plane, there is no roll, so the overturning moment can not be filled.
As the speed is 0, the wheel does not roll, so the rolling resistance and lateral force can not be filled. Therefore, the key is to measure the positive torque and steering force.
As for the 2 parameters, I have considered them in 2 directions. One is to calculate the theoretical values from the point of view of the kinetic model and the existing parameter values. The other one is
The simulation results are obtained from the tool Tire Testrig, which comes with Adams, but the results are not satisfactory, and some even fail to be theoretical
Cv_ is the prefix of the communicator variable
Select Pick Feature custom.
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After studying for a few days, Adams people are talking about the simulation of vehicle dynamics. There is one of the most basic problems. Do you know what is the u of modeling?
Very simple, right? My model is more accurate so that the leader will believe it! That makes n! Blunder! What are you going to study bad on the model? What are some of the uful information about the project, if you can not recognize this level, your behavior is not a rigorous engineering behavior, don't say the government always engage in performance face job, think of yourlf first, you such a person as a civil rvant
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