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This standard stipulates the method of steering and stability test for steering of vehicles, steering transient response test method (step steering input, steering wheel pulse input), steering return positive test method, steering portable test method, steady state Turn test method, steering wheel central area handling stability test method.
The choice of equipment:
1, steering wheel torque, steering wheel angle measuring instrument;
2, automotive operating stability test bed;
3, stopwatch;
4, multi-channel data acquisition system.
Measurement parameters:
1. Steering wheel angle;
2, yaw rate;
3, body roll angle;
4, through the effective stake area time;
5. Lateral acceleration.
experiment method:
1. According to the regulations on the test site, 10 stumps shall be arranged.
2. Turn on the instrument power and allow it to warm up to normal operating temperature.
3, the pilot should have a rich driving experience.
4. For the first test, the test speed shall be one half of the reference speed and be rounded to an integer multiple of 10. The straight line shall be stably driven at this speed. Before entering the test section, the zero line of each measurement variable shall be recorded.
5, gradually increase the test speed, repeat the above, a total of 10 times.
For specific details, please contact the Technical Department of Jinan Zhongchuang Industrial Test System Co., Ltd.
Zhong Chuang teaches you how to operate the stability of your car to do a snake test
Application scope:
Barbell bar a long bar which is used in barbell, one kind of exercise tools used in weight training, bodybuilding, weightlifting and powerlifting. The barbell bar length ranges from 1200mm to 2400mm. The barbell bar diameter ranges from 25mm to 50mm. The barbell bar can be used for both competitive sports such as powerlifting, Olympic weight lifting, CrossFit. and other exercises such as bicep curl, bench press, overhead press, deadlift, and squat etc.
Among the various barbell bars, 20kg barbell bar is the most popular and standard barbell bars.