Advanced Materials and Manufacturing, ASA(ALT), Phase I
Advanced Tire Technology for Manned and Unmanned Systems
Objective
Carbon Fiber Hoops will be embedded in the tire under the tread to tension the tire cords to reduce the air pressure required for full load capability and to better control the load distribution at low or zero air pressure. This reduces the load on the run-flat by about 50% and results in increased run-flat range and potentially speed with greater tire stability. With alternative light weight run-flats previously tested with reduced load capability, the expectation is that the overall weight will also be reduced by 20%.
Description
The current state of the art tire/run-flat for military ground vehicles is a Michelin or Goodyear tire with a Hutchinson solid rubber inner wheel for run-flat capability with a top speed of 30 mph and a range of 30 miles. The purpose of this topic is to increase run-flat range from 30 miles to 350 miles to support autonomous operations. The overall goals are to increase top run-flat speed from 30 mph to 45 mph, provide the same ride quality and terrain capability as existing pneumatic tires used for the military, ensure tire/runflat cost approximately 10% less than current tire/run-flat, and reduce weight of new HMMWV tire/run-flat by 20% minimum. Previous efforts with industry, academia, and USG entities have focused on trying to solve the problem with either the tire itself (low sidewall tires or other technology that makes the tire stiffer) or a lighter run-flat that typically was also stiffer or overheated with the load capacity required for an up-armored HMMWV. It becomes too much for one technology to do alone. Combining technologies will enable the tire to carry and absorb RFI and mobility loads during X-country operations so a lighter RFI can operate at zero PSI. Proposer should show the development of a tire using carbon fiber hoop technology to reduce the loading on the run-flat by approximately 50%. Pneumatic tires also experience cupping at low tire pressures and this technology can be used to better control the footprint at lower air pressure to reduce ground pressure and improve stability. Additionally, other technology used for extended range runflat capability at lower loadings will be combined with the tire technology to increase range, speed and lower weight & cost.
Phase I
Successfully pass analytical and component testing for load carrying capability and durability. Simulate tire/runflat capability through DADS modeling.
Phase II
Successfully demonstrate ride quality on a HMMWV in GVSC physical simulation lab. Successfully demonstrate operational requirements by qualification testing.
Phase III
Complete testing, document ad release for production.
For more information, and to submit your full proposal package, visit the DSIP Portal.
Objective
Carbon Fiber Hoops will be embedded in the tire under the tread to tension the tire cords to reduce the air pressure required for full load capability and to better control the load distribution at low or zero air pressure. This reduces the load on the run-flat by about 50% and results in increased run-flat range and potentially speed with greater tire stability. With alternative light weight run-flats previously tested with reduced load capability, the expectation is that the overall weight will also be reduced by 20%.
Description
The current state of the art tire/run-flat for military ground vehicles is a Michelin or Goodyear tire with a Hutchinson solid rubber inner wheel for run-flat capability with a top speed of 30 mph and a range of 30 miles. The purpose of this topic is to increase run-flat range from 30 miles to 350 miles to support autonomous operations. The overall goals are to increase top run-flat speed from 30 mph to 45 mph, provide the same ride quality and terrain capability as existing pneumatic tires used for the military, ensure tire/runflat cost approximately 10% less than current tire/run-flat, and reduce weight of new HMMWV tire/run-flat by 20% minimum. Previous efforts with industry, academia, and USG entities have focused on trying to solve the problem with either the tire itself (low sidewall tires or other technology that makes the tire stiffer) or a lighter run-flat that typically was also stiffer or overheated with the load capacity required for an up-armored HMMWV. It becomes too much for one technology to do alone. Combining technologies will enable the tire to carry and absorb RFI and mobility loads during X-country operations so a lighter RFI can operate at zero PSI. Proposer should show the development of a tire using carbon fiber hoop technology to reduce the loading on the run-flat by approximately 50%. Pneumatic tires also experience cupping at low tire pressures and this technology can be used to better control the footprint at lower air pressure to reduce ground pressure and improve stability. Additionally, other technology used for extended range runflat capability at lower loadings will be combined with the tire technology to increase range, speed and lower weight & cost.
Phase I
Successfully pass analytical and component testing for load carrying capability and durability. Simulate tire/runflat capability through DADS modeling.
Phase II
Successfully demonstrate ride quality on a HMMWV in GVSC physical simulation lab. Successfully demonstrate operational requirements by qualification testing.
Phase III
Complete testing, document ad release for production.
For more information, and to submit your full proposal package, visit the DSIP Portal.