The Study On Acoustics Design Of Spherical Indoor Space

Architects from ancient to modern times are all good at using spherical conformation to organize rational architecture functions; in the meanwhile they create rich and colorful architecture models. The corresponding reasons are also various; e.g. due to the factor of tradition, of region, of model, of the demand of function and so on. The influences that spherical conformation brings to the hall acoustics design are sound focusing and so on。In order to eliminate the defects such as sound focusing caused by spherical conformation,this kind of buildings need special acoustics deal. How to solve these problems of the common buildings effectively and economically is a title that deserving deep research.This thesis begins with the general principle of indoor acoustics and researches on the rule of the acoustics wave spreading; analyzing mainly the features that the acoustics wave reflex on the concave。Secondly,this thesis analyzes and summaries the evaluation index of indoor sound quality, knowing the relation between the subjective evaluation and the objective Physical quantity。Absorbing the experience the predecessors have got on the indoor acoustics design, master the general principle and methods of indoor acoustics design.On the basis of the research achievements of the predecessors, combing the research object, that is spherical indoor space, this thesis adopts energy-area method and the equation of the wrap-up line analyzing and researching deeply on the acoustics wave reflection features of spherical indoor space. Finally, combining two real acoustics design projects, the gymnasium of XinYang normal college and the globular exhibition hall of the merchant service center of the development zone of economic and technology of ChangSha, this thesis has processed some helpful exploitation on the acoustics design of spherical indoor space based on the principle of economic and practical utility in the real practice of project.