Applying Numerical Simulation Analysis to the Optimal Design of Silencer

• Main Authors: Wei-Shiang Hung, 洪偉翔
• Other Authors: Wen-hsing Lai
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/59217449228200651347

碩士 === 國立高雄第一科技大學 === 電腦與通訊工程研究所 === 102 === 　　The study is based on Taiwan-made silencer designed engineering , excepting to help the structure engineering and reduce muzzle noise by the programming simulation analyzing. In generally, there are two mainly type of silencer, the partition and metal-net, and both of that can reduce noise effectively. 　　The study takes research as partition-type silencer, build the internal structure model and simulate the airstream motion by the Hydromechanics program as FLUENT. Then acquire the reasonable and reliable muzzle noise data to establish the effective simulation mode with experiment structure exam and build effectively simulate model to reduce the Try& Error period of R&D task. 　　The result, optimal design by numerical simulation analysis of structure of silencer, is ability not only the reasonably predicted the blast and noise effect but the evaluation of different silencer structure. As the study conclusion, while simulating by the Numerical Simulation, the S3 silencer got lower peak-noise and the frequency located the low and medium zone which be the insensitive zone of the ear of human being. The S3 be the best model of this study.