Vehicle Track System Damping Vertical Displacements
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Solution Overview
Problem
Conventional track systems for vehicles, especially those used on soft, slippery, or uneven surfaces, suffer from poor ride comfort due to lack of damping, leading to increased vibrations and vertical displacements, which can cause operator discomfort and premature wear of vehicle components.
Innovation Solution
A track system with a scissor-like structure featuring pivotable leading and trailing frame members interconnected by a damper, reducing vertical displacements and vibrations, and designed to distribute the vehicle's weight over a larger surface area, thereby reducing pressure and enhancing ride comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If track systems are used in place of wheels and tires, then traction is increased and weight is distributed over a larger area, but ride comfort deteriorates due to increased vibrations and vertical displacements
Solution Approach 1:
The patent applies beforehand cushioning by incorporating a damper system between the track frame and vehicle chassis that is pre-configured to absorb vibrations and vertical displacements before they reach the vehicle body. This damper acts as a cushioning element that mitigates the harmful effects of track system operations on ride comfort while preserving the traction benefits.
2Stress or pressure
If track systems are used in place of wheels and tires, then weight distribution is improved, but vibrations and vertical displacements increase leading to premature wear of vehicle components
Solution Approach 1:
The patent employs an intermediary approach by introducing a damper system as a mediating element between the track frame and vehicle chassis. This intermediary component absorbs and dissipates vibrations and vertical displacements, preventing them from directly transmitting to the vehicle body and causing premature wear of components while maintaining the improved weight distribution characteristics of track systems.
3Area of stationary object
If conventional track systems are used, then ground surface contact area is increased, but damping is lost leading to increased vertical displacements on uneven surfaces
Solution Approach 1:
The patent applies beforehand cushioning by pre-installing a damper system that is specifically designed to compensate for the loss of natural damping that occurs when track systems replace wheeled vehicles. The damper is configured to absorb vertical displacements and vibrations before they affect vehicle stability, thereby maintaining stable operation on uneven surfaces while preserving the increased ground contact area advantage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The track system improves ride comfort by damping vibrations and vertical displacements, reduces the tendency to pitch negatively, and allows for increased load-bearing capacity without excessive wear on the sprocket wheel assembly, leading to enhanced operator comfort and reduced maintenance costs.
Implementation Method 1
a damper interconnecting the leading frame member and the trailing frame member
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
Track system for a vehicle having a chassis and a drive shaft extending laterally outwardly from the chassis includes: An attachment assembly having a pivot. A multi-member frame assembly including: a leading frame member pivotably connected to the attachment assembly via the pivot for pivoting about a pivot axis; a trailing frame member pivotably connected to the attachment assembly via the pivot for pivoting about the pivot axis; a leading wheel-bearing frame member at least indirectly pivotably connected to the leading frame member; a trailing wheel-bearing frame member at least indirectly pivotably connected to the trailing frame member. A damper interconnecting the leading frame member and the trailing frame member. A leading idler wheel assembly; a trailing idler wheel assembly; support wheel assemblies; a gearbox; a sprocket wheel; and an endless track.