The Study of High Power Rectangular Flat-panel Loudspeaker

• Main Authors: Kuei-Yuan Chung, 鍾魁原
• Other Authors: Tai-Yan Kam
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/84364597528744887983

碩士 === 國立交通大學 === 機械工程系所 === 95 === There are two major parts in the thesis. The first part is related to the design and manufacture of the elastic suspensions of loudspeakers, including the choices of the materials of the supports and their geometrical shapes, which are used to increase the stability and recoverability of loudspeakers. This kind of design makes the panel resume to its equilibrium position under large power easily. It also raises the maximum allowable output power and improves the bass performance while at the same time, the collapse problem of conventional suspension under long period working is also solved. The second part is related to the design of reinforced panel using composite materials. Some mode shapes that may have adverse influences on the sound radiation in certain frequency ranges are determined using a verified ANSYS FEA model. An appropriate reinforced region is determined to suppress the detrimental modes while at the same time, reduce panel weight, make the SPL curve smoother and the speaker possess higher sensitivity.