Timesharing simulation system for passenger compartment noise sound field of high-speed vehicle and simulation method
A simulation method and noise technology are applied to the noise simulation system and the simulation field at the seat position of the passenger compartment of a high-speed vehicle to achieve the effects of improving comfort, improving accuracy and ensuring accuracy
Active Publication Date: 2014-03-26
江苏天佑路航认证检测有限公司
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Problems solved by technology
Therefore, it is impossible to simulate and reproduce the sound field of high-speed train carriages at the same time by using the sound box to play the recorded noise signal to realize the noise simulation reproduction.
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Embodiment 1
[0042] like figure 1 , figure 2 As shown, the high-speed vehicle passenger compartment noise sound field time-sharing simulation method includes a computer, a simulated car body, and a sounding device and a microphone connected to the computer and arranged inside the simulated car body; the computer is also connected to a speaker positioning mechanism.
[0043] The pronunciation device is a high-frequency speaker and a low-frequency speaker. The low-frequency speaker is connected to the computer, and the high-frequency speaker is connected to the low-frequency speaker. Because the sound of the low-frequency speaker 1 has no directionality, the low-frequency speaker 1 does not need to be rotated, and the sound of the high-frequency speaker is directional. Therefore, when simulating the noise of the ear position of different seats, the direction of the high-frequency speaker needs to be rotated so that the two The speaker points to the position of the human ear, so a speaker ...
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The invention relates to sound simulation systems and sound simulation methods and particularly relates to a timesharing simulation system for a passenger compartment noise sound field of a high-speed vehicle and a simulation methodsystem thereof, which mainly solve the key problem that the reproducing simulation of a sound field is needed in the research of the relationship between noise characteristics and the comfort of passengers. The system comprises a computer, an analog vehicle body, sounding equipment and a sound conducting apparatus, wherein the sounding equipment and the sound conducting apparatus are connected onto the computer and are arranged inside the analog vehicle body. The invention further provides the method for realizing the timesharing simulation of the noise sound field by using the system. The system and the method provided by the invention can meet the research of the relationship between the noise characteristics and the comfort and has the fundamental characteristics of wide scope of application, high accuracy in the simulation and the reproduction of noises, reliable system, and convenience in implementation.
Description
technical field [0001] The invention relates to a sound simulation system and a sound simulation method, in particular to a noise simulation system and a simulation method at the seat position of a passenger compartment of a high-speed vehicle. Background technique [0002] In recent years, with the rapid development of high-speed rail, an important topic after the research on high-speed train operating speed, service reliability, and operational safety is that the passenger comfort of high-speed trains during operation has been highly valued. In-depth research. But in the research process, there are many problems that need to be solved urgently, such as high-speed train comfort simulation test technology, comfort evaluation theory, comfort improvement and optimization technology, etc. Among them, the noise during the operation of high-speed trains makes people upset, chest tightness, lack of concentration and other phenomena that seriously disturb the comfort of passengers...
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IPC IPC(8): H04R3/12
Inventor 丁建明伍川辉林建辉农汉彪刘璐
Owner 江苏天佑路航认证检测有限公司