Title:
DUAL MODE EQUATION BASED DETERMINISTIC ACOUSTIC-STRUCTURE COUPLING RESPONSE PREDICTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/219052
Kind Code:
A1
Abstract:
A dual mode equation based deterministic acoustic-structure coupling response prediction method, comprising the following steps: (1) dividing a structure and a vocal tract in an acoustic-structure coupling system into different sub-systems; (2) calculating a mode of a structure sub-system and a vocal tract sub-system; (3) calculating a coupling parameter between modes in adjacent sub-systems; (4) establishing a dual mode equation of the coupling system; (5) through pre-processing, obtaining a generalised force load accepted on the sub-system mode under the action of a deterministic load; (6) calculating a dual mode equation, and obtaining a participation factor of all the modes; and (7) through modal superposition, calculating a deterministic acoustic-structure coupling response of the system. The deterministic acoustic-structure coupling response prediction method is a dual mode equation based deterministic acoustic-structure coupling response prediction method; in the method, a system is divided into continuously coupled sub-systems, and deterministic vibration of the system is described using sub-system modes in a limited frequency band. The analysis efficiency of the method is higher than a traditional finite element method.
Inventors:
FEI QINGGUO (CN)
ZHANG PENG (CN)
LI YANBIN (CN)
WU SHAOQING (CN)
YANG XUAN (CN)
JIANG DONG (CN)
ZHANG PENG (CN)
LI YANBIN (CN)
WU SHAOQING (CN)
YANG XUAN (CN)
JIANG DONG (CN)
Application Number:
PCT/CN2018/083242
Publication Date:
December 06, 2018
Filing Date:
April 16, 2018
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
International Classes:
G06F17/50
Foreign References:
CN107133422A | 2017-09-05 | |||
CN104850713A | 2015-08-19 | |||
CN104112070A | 2014-10-22 | |||
US20120239358A1 | 2012-09-20 |
Attorney, Agent or Firm:
NANJING RUIHONG PATENT & TRADEMARK AGENCY (ORDINARY PARTNERSHIP) (CN)
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