| After more than 2,000 years of development since the birth of the open-air theater dedicated to gods in ancient Greece,today’s theater types have blossomed,from the comprehensive grand theater to the professional theater.Theater has become a closely related part of people’s cultural life.Through the retrospection of the history of theater development,we can see that the development of theater architecture has basically evolved around the development of the auditorium.Every time the civilization changes,the shape of the audience hall has also appeared various innovations,and the innovation of the shape has brought about various acoustic problems.With the solution of acoustic problems and the emergence of new shapes,there are inherent acoustic defects.the shape with congenital acoustic defects have gradually faded out of the historical stage,and the shape that meets acoustics requirement is in ceaseless development to occupy mainstream gradually,it can be seen that the congenital condition of shape is crucial to the sound quality of the theater.Today,in the 21st century,under the synergy of computer technology and parametric design,nonlinear design has opened the door to imagination as reality,and buildings that reflect the natural form and the vision of the future city have come to the public’s sight,especially the public cultural buildings such as the theatre and concert hall,which are the name cards of the city culture,it is often necessary to demonstrate the strength of the country and the city through novel modeling and mature construction techniques.Under the influence of architectural style,the interior decoration style has also begun to change.The streamlined shape has gradually become a trend in the style of theater building interior decoration.However,the streamlined shape of the audience hall not only guarantees a good sound environment,but also takes into account the beautiful visual experience.The integration of technology and art is a subject that requires further research at the current stage of architectural design.To this end,This paper uses system analysis,horizontal comparison,computer simulation,case analysis and other research methods,based on theoretical research,combined with computer simulation modeling to study the acoustic problems caused by body shape,and corroborated by actual cases.The research of the thesis mainly focuses on the following five aspects:(1)First of all,Starting from the three aspects of the time background,architectural background and acoustic background of the theater development,the blanks and prospects of the current research in the streamlined theater auditorium were discovered.The research status of the related theater acoustics research field at home and abroad was analyzed in depth and analyzed.The research results of early lateral reflection sounds and related scientific research methods are used to determine the specific research methods and research routes suitable for this topic.(2)This paper discusses the development history of the body shape of the theater,and summarizes the basic body types commonly used in the theater.The basic body types are divided into two types: non-streamlined and streamlined.The relationship between streamline and early lateral reflection sound is studied,and the influence of body shape streamline on sound field is analyzed.Based on the analysis and comparison of model method and simulation method,this paper introduces the convenience and advantages of computer three-dimensional acoustic simulation technology,including the method and process of ODEON software acoustic simulation,as well as the acquisition method of acoustic parameters related to lateral reflection sound,so as to prepare for the next research on the relationship between shape and sound field.(3)This paper analyzes the role of body shape optimization design,analyzes the application of streamline modeling in the theater space in detail with the help of literature collection and on-site survey photo data,and summarizes and analyzes the basic form of streamline modeling application in the audience hall and the change of basic form,and summarizes the characteristics of streamlined audience hall body shape optimization.(4)Three-dimensional modeling was carried out in two types of halls,and the acoustic field simulation of the auditorium was performed by the professional acoustic analysis software ODEON.the simulation results of the early lateral reflection sound distribution of different types of auditoriums are compared,and it is concluded that the early lateral reflection sound distribution of rectangular auditorium is the best,followed by bell-shaped,horseshoe-shaped,hexagonal,fan-shaped auditorium.The horseshoeshaped auditorium has the best early lateral reflection sound,but there is a problem of uneven overall distribution.therefore,based on the characteristics of horseshoe plane distribution of early reflections audience hall,summarizes the advantages and disadvantages of streamlined theatre,and then puts forward the appropriate adjustment suggestion.(5)Finally,taking the Qingdao Phoenix Sound Theatre as an example,the paper analyzes its architectural overview and sound quality design features,and compares the sound field conditions before and after body shape optimization through simulation and simulation,and analyzes the early lateral reflection sound distribution before and after body shape optimization and other objective The change of acoustic parameters,from which the streamlined design can significantly optimize the early lateral reflection sound,provides a basis for reference and reference for future research and design.Based on the combination of theoretical analysis and practical verification,this thesis has certain theoretical significance and practical application value.The research methods and design strategies adopted in this thesis can provide reference for designers and researchers in the same field,and provide discussion direction for the further study of streamlined theater sound field. |
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