Systemic solutions
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Automobile Industry
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Low Noise Solution For Intake And Exhaust Systems
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Interior Product Performance Optimization And Cost Reduction Solutions
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Low Noise Solution For Hydrogen Fuel Cell System
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Low Noise Solution For Vehicle Electric Drive System
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Low Noise Solution For Vehicle Air Conditioning System
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Vehicle Damping Layout Optimization And Lightweight Solutions
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Aviation Industry
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Material Industry
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Other Industry
Low noise solution for intake and exhaust systems
1. Background introduction
1.1 Introduction to noise problems in intake and exhaust systems
· Problems caused:
· Excessive noise inside the cabin (the overall noise in the cabin is too high, poor sound quality, causing low-frequency sounds in the car, etc.);
· Excessive noise outside the cabin (affecting the Pass-by of the entire vehicle, etc.) ;
· Main noise and vibration sources:
· Intake system noise (engine intake noise, turbocharger noise, pipeline radiation noise, structural vibration transmission noise, etc.);
· Exhaust system noise (engine exhaust noise, turbine Supercharger turbine noise, exhaust system vibration noise, etc.).
Engine intake and exhaust system
Engine intake noise
Turbocharger noise
Noise caused by turbine/engine exhaust
2. BOACH acoustic intake/exhaust system low noise solution
· Provide customers with intake/exhaust system component level->system level->vehicle-level low-noise solutions;
· Service content: CAE analysis, system testing, muffler and system design and development.
2.1 Intake/exhaust noise generation mechanism and main noise sources
· Radiated noise from the intake/exhaust pipeline;
· Main noise and vibration sources:
· Noise caused by vibration transmission of the intake/exhaust installation structure.
Naturally aspirated engine intake and exhaust system
Turbocharged engine intake and exhaust system
2.2 BOACH acoustic intake/exhaust noise suppression solution
· Suppression of radiated noise from pipelines and pipe mouths:
· Design and development of pipeline silencers;
· Suppression of vibration transmission noise of pipeline structures:
· Optimization and matching of connection point stiffness and position;
· Optimized matching of vibration-absorbing pads;
2.3 BOACH Acoustic Intake/Exhaust Product Acoustic Detection Solution
· Muffler transmission loss test;
· Including transmission loss under flow and no flow conditions.
· Sound attenuation test of intake/exhaust system;
· Pipeline radiated noise test;
· Testing on the vibration isolation rate of the vibration damping pad, dynamic stiffness of the bracket, and system modalities;
Pipeline transmission loss test
Pipeline radiated noise test
Pipeline radiated noise test
Modal and dynamic stiffness testing
3. BOACH acoustic intake/exhaust system low noise solution
· Intake and exhaust silencer design and development services;
· BOACH Acoustics has designed and developed intake/exhaust silencers for many types of vehicles;
Air intake silencer case
Exhaust post-processor acoustic modeling software development and integrated muffler development
· Laboratory and test system construction:
· Pipeline transmission loss, radiation noise, sound attenuation and other test bench construction;
· Construction of semi-anechoic chamber.
Pipeline testing system: hardware (can be customized with air flow bench) + software
Pipeline radiated noise testing laboratory: customized semi-anechoic chamber
Contact us
Phone：
Email：
Address：
Room 901, Building 1, Phase 2, Yungu Phase 2, Fengxi New Town, Xixian New District, Xixian New District, Xi'an City, Shaanxi Province
Room 307, Building 1, Harbin Institute of Technology Robot Industrial Park, No. 488 Qianjin East Road, Economic Development Zone, Kunshan City, Jiangsu Province
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