130 likes | 138 Views
MGI has been conducting tyre tests since 1975 for development and research purposes, including tyre-soil interaction studies. Our facilities allow for rolling radius tests, contact surface tests, wear and long-term tests of tyres, drum tests, traction performance tests, and more.
E N D
Skills and Facilities in the MGI(Hungarian Institute of Agricultural Engineering – Gödöllő) Tyre tests
MGI is carrying out tyre tests since 1975 • Investigations to support the development • Research purposes (tyre-soil interaction)
Tyre test facilities • Rolling radius tests • Contact surface tests • Wear and long term tests of tires (lugs broken) on concrete surface • Drum tests (rapid durability test of side wall) • Traction performance tests on „measuring tractor” • Traction and other tyre characteristics tests on single wheel tester
Wear and long term tests of lugs (broken) on concrete surface 0,5 – 1,5% wheel slip, overloaded and under inflated tires Round track diameter: 50 m
Drum tests (rapid durability test of side wall) Overloaded and under inflated tires 30 km/h peripheral speed
Traction performance tests on „measuring tractor” Tractor type. John Deere 6920S
Positioning scheme of the sensors assembled on the tractor 1 - sensor and transmitter of torque on drive-shaft (propshaft) to front axle 2- transmitter of speed onfront wheels 5 3 - sensor and transmitter of torque on rear wheel hubs, 6 4 - transmitter of speed on rear wheel hub, 5 - transmitter of speed on PTO, 6 - measuring unit of drawbar pull - dynamometer, 7 - measuring unit of travelling speed (radar sensor) 3 3 4 1 7 2
Measuring the torque on the rear wheel hub and implementation of the front wheel drive operation system
Traction and other tyre characteristics tests on single wheel tester
FAST2 -Field, Asphalt, Soil bin Tyre Tester Main geometrical and functional parameter
The feasible tests with the device are: • rolling radius test • rolling resistance test on road • motion resistance test in the field • wheel slip test • net traction test • vertical load test