Method for quickly evaluating sound insulation performance of ship bulkhead structure

Abstract

The invention discloses a method for quickly evaluating the sound insulation performance of a ship bulkhead structure. The method comprises the following steps: step 1, establishing a sound insulationperformance simulation test model; step 2, setting physical parameters of the bulkhead to be measured; and step 3, calculating the weighted sound insulation index of the bulkhead to be measured. According to the invention, a laboratory detection environment for cabin structure noise testing can be simulated. The sound insulation performance of the ship bulkhead structure is subjected to analoguesimulation to acquire the sound insulation performance index of the bulkhead structure. The method can be used for calculating the sound insulation indexes of the ship cabin combined wallboard and thecombined deck. Due to the fact that a bulkhead structure of any combination can be simulated, the defect that a manufacturer test report result is incomplete is overcome. Designers can find a sound insulation structure combination with the optimal cost performance. Design and manufacturing cost is reduced, and great significance is achieved for ship sound insulation calculation and bulkhead structure design.

Description

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AI Technical Summary

Benefits of technology

This technology allows companies or research organizations to conduct tests on their products without having them actually perform actual field experiments that may have negative impacts over its lifetime. It helps predict how well these types of materials will work when they were installed at different locations within an aircraft's interior walls during flight operations. By simulating this environmental conditions, firms could reduce costs while still providing accurate results compared to previous methods such as manual measurements.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the quality control (QC) for ships' interiors during construction without increasing their weight due to increased air conditioner loadings caused by poor acoustical isolations at specific locations within each deck space.

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