Tire Fatigue Performance Test System

Posted by Kari Grosser on Aug 10, 2016 10:30:00 AM

Fatigue breakdown is the primary failure method for car wheels and is directly related to passenger safety. The bending fatigue strength is an important parameter used to describe the condition. In this case sample, the microprocessor-controlled care wheel bending fatigue automatic test process. The testing machine determines whether the wheel has passed the test by monitoring the changes to rotation numbers, and issues an alarm due to wheel fatigue before a breakdown occurs. Wheels are one of the most critical care components of a car and directly affect the safety and comfort level of the car. The process to manufacture wheels includes stamping, forming, welding, and anti-corrosion treatment. The requirements for each process are extremely stringent. From the perspective of actual operation, the force absorbent surfaces of a car's wheels are extremely complex when the car is being driven. In addition to the support, lateral, bending moment, and driving forces, as the wheels rotate and withstand friction, the temperature and pressure can also change at any time. Therefore, the fundamental issue of the wheel design and manufacturing process is to ensure that the fatigue lifespan can satisfy the application and performance requirements. 

Requirements

Typically. wheel fatigue lifespan tests and inspections include two aspects. The wheel radial fatigue test, which primarily inspects the comprehensive strength of the entire wheel, and the wheel bending fatigue test, which examines the wheel spoke and weld strengths. At present, the domestic automobile industry mostly uses hydraulic servo fatigue testing machines to perform tests on finished tire products. However, despite their high test accuracy, these machines are bulky and expensive, the tires being tested are hard to install during the testing process, and they lack test speed efficiency. Therefore, it is absolutely necessary to produce a highly efficient affordable, and easy to install platform that does not sacrifice the accuracy of the test results manufactures. 

  • Range of the primary wheel shaft rotation speed test: 40 to 400 rotations.minute

  • Pressure load test range: 0 to 70 kN

  • Highly efficient, anti-vibration computing platform

  • Machine layout is reasonable, compact, and easy to maintain 

Tire_Fatigue_Application_Story.jpg

System Features

Because this testing system must be operated over long periods of time and the wheel being tested will continue to rotate while the pressurized tests are being performed during the wheel testing process, machine vibrations end up as one of the factors that must be overcome. Therefore, Advantech's MIC-7500, equipped with 6th generation Intel Core i processor and innovatively modular design, is suited for such systems. This fanless industrial PC has an integrated design that can be compatible with different expansion modules. The compact structural design of this system can also resolve the bulky and inconvenient installation problems accompanying the traditional machines. The PCIE-1810 multifunction data acquisition board, with a 800 kS/s sampling rate and 12-bit high resolution, can fully satisfy the wheel rotation speed and pressurized force measurement requirements. 

 

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Topics: Data Acquisition & Communication

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