Vehicle Shock Absorber With Dynamic Mass Tuned to Wheel Resonance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vehicle suspension systems face challenges in effectively absorbing vibrations of different frequencies and magnitudes, particularly where the wheel and vehicle body resonate at distinct frequencies, leading to discomfort and handling issues.
Innovation Solution
A shock absorbing system comprising a semi-active shock absorber, a dynamic absorber with a spring and mass tuned to the wheel's resonant frequency, and a third absorber for high-frequency vibrations, all working together to absorb a wide range of vibrations, ensuring comfort and improved handling by addressing competing resonant frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single absorber is used in the suspension system, then device complexity is reduced, but the ability to absorb vibrations across a wide frequency range deteriorates
Solution Approach 1:
The single absorber is segmented into three distinct absorbers with different tuning characteristics. This segmentation enables each absorber to specialize in a specific frequency band, collectively covering a broad spectrum from 0.5 to 30 Hz while maintaining manageable individual component complexity
Solution Approach 2:
Each absorber serves multiple functions within its frequency range: providing both spring support and damping, and contributing to overall system stability. The combined system achieves universal vibration attenuation across diverse frequency conditions that a single absorber could not accomplish
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 system effectively reduces vibrations across a broad frequency range, enhancing ride comfort, handling, and minimizing audible noise by targeting specific resonant frequencies of both the wheel and vehicle body.
Implementation Method 1
a dynamic absorber with a spring and mass tuned to the wheel's resonant frequency
Implementation Method 2
The system effectively reduces vibrations across a broad frequency range
Implementation Method 3
a first absorber between the wheel and the vehicle body, and a third absorber attached to the vehicle body
Data Source
AI summary
A vehicle shock absorbing system includes a wheel, a vehicle body, a first absorber, a dynamic absorber, and a third absorber. The third absorber is attached to the vehicle body. The first absorber is between the third absorber and the wheel. The dynamic absorber is attached to the wheel and includes a dynamic absorber mass and a spring.