Vibrator With Regulation Member For Noise Reduction
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Solution Overview
Problem
Existing vibrators and acoustic systems struggle to effectively reduce noise and vibration transmission through vibration members, particularly in applications where precise control over sound waves is required.
Innovation Solution
The proposed solution involves a vibrator system comprising a first and second vibration unit, secured by a regulation member, which generates excitation forces to apply to a vibration member. Additionally, the system includes first and second correction filters that correct acoustic signals to reduce transmitted sound, and a sound generation device that produces sound waves based on these corrected signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a single vibration unit is used to reduce noise at a predetermined frequency, then the noise reduction effect is achieved, but the ability to handle complex vibration patterns and multiple frequencies is limited
Solution Approach 1:
The vibration generator is divided into multiple independent vibration units (first vibration unit and second vibration unit), each capable of generating excitation forces at different frequencies and phases. This segmentation allows the system to address complex vibration patterns and multiple noise frequencies simultaneously, overcoming the limitation of single-unit systems.
Solution Approach 2:
The regulation member dynamically adjusts the relative movements between vibration units based on feedback from vibration members. This dynamic control enables the system to adapt to changing vibration conditions and complex vibration patterns, enhancing both noise reduction effectiveness and system versatility.
2Object-affected harmful factors
If multiple vibration units are used to improve noise reduction capability, then the ability to handle complex vibrations is enhanced, but the control complexity and relative position management becomes more difficult
Solution Approach 1:
The regulation member acts as an intermediary component that coordinates and controls the relative movements between multiple vibration units. By centralizing this control function, the system manages complexity through a dedicated coordination mechanism rather than requiring complex distributed control for each vibration unit pair.
Solution Approach 2:
The system incorporates feedback mechanisms where vibration members provide information about their actual vibration states. This feedback enables the regulation member to adjust the relative movements of vibration units in real-time, simplifying control by using actual system responses rather than requiring complex predictive control algorithms.
3Stability of the object's composition
If vibration units are secured with rigid fixation, then the structural stability is improved, but the ability to regulate relative movements for optimal vibration control is reduced
Solution Approach 1:
The regulation member provides a dynamic connection mechanism between vibration units, allowing controlled relative movements while maintaining overall structural stability. This dynamic design enables the system to adjust vibration unit positions during operation for optimal noise reduction control, unlike rigid fixed connections.
Solution Approach 2:
The regulation member provides differentiated connection characteristics at different locations. It maintains stable fixation for structural integrity while allowing localized relative movements between vibration units, achieving both structural stability and operational flexibility where needed.
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
This configuration enhances the ability to reduce transmitted sound and vibration, improving the overall performance of the acoustic system by effectively managing sound waves and vibrations across different spaces.
Implementation Method 1
a first vibration unit that generates an excitation force to be applied to a vibration member
Implementation Method 2
a second vibration unit that generates an excitation force to be applied to the vibration member
Implementation Method 3
a regulation member to which the first vibration unit and the second vibration unit are secured and which regulates relative movements between the first vibration unit and the second vibration unit
Implementation Method 4
a first correction filter that corrects an acoustic signal, and outputs the acoustic signal corrected to the first vibration unit, and a second correction filter that corrects the acoustic signal, and outputs the acoustic signal corrected to the second vibration unit
Data Source
AI summary
A vibrator includes: a first vibration unit that generates an excitation force to be applied to a vibration member to which the first vibration unit is attached; a second vibration unit that generates an excitation force to be applied to the vibration member to which the second vibration unit is attached; and a regulation member to which the first vibration unit and the second vibration unit are secured and which regulates relative movements between the first vibration unit and the second vibration unit.