Device and method for testing sound insulation performance of vehicle sound insulation material and electronic equipment
A technology for testing devices and sound-insulating materials, applied in measuring devices, using sound waves/ultrasonic waves/infrasonic waves for material analysis, analyzing materials, etc., can solve problems such as low accuracy
Active Publication Date: 2020-10-23
EVERGRANDE NEW ENERGY AUTOMOTIVE INVESTMENT HLDG GRP CO LTD
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[0005] The invention discloses a sound insulation performance testing device of vehicle sound insulation materials, a sound insulation performance testing method, electronic equipment and a storage medium, in order to solve the problem of low accuracy existing in the current sound insulation performance testing scheme
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[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] The technical solutions disclosed by various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0034] Such as figure 1 As shown, the embodiment of the present invention discloses a sound insulation performance test device for vehicle sound insulation materials. The sound insulation perfo...
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The invention discloses a device and method for testing the sound insulation performance of a vehicle sound insulation material, electronic equipment and a storage medium. The sound insulation performance testing device comprises: a reverberation chamber (100), which is provided with a mounting hole communicated with an internal space of the reverberation chamber (100) and an external space outside the reverberation chamber (100); an excitation air source (200), which is arranged in the external space, and is provided with an air outlet (210); a sound acquisition member (300), which is arranged in the internal space; specifically, the excitation air source (200) is used for generating airflow which flows out of the air outlet (210) and acts on a to-be-tested object under the condition thatthe to-be-tested object is installed in the mounting hole, so that the to-be-tested object vibrates to radiate noise; and the sound acquisition member (300) is used for acquiring a sound signal in the reverberation chamber (100) when an airflow acts on the to-be-tested object. According to the scheme, the problem that an existing sound insulation performance testing scheme is low in accuracy canbe solved.
Description
technical field [0001] The invention relates to the technical field of testing, in particular to a sound insulation performance testing device of a vehicle sound insulation material, a sound insulation performance testing method, electronic equipment and a storage medium. Background technique [0002] As people's requirements for the NVH performance of automobiles gradually increase, various manufacturers control the noise more and more strictly during the development process. The sound insulation performance test of materials becomes particularly important. [0003] Usually, the noise in the car includes structural sound and air sound. At present, the sound insulation performance test methods for air sound are very mature, but there are few sound insulation performance test methods for structural sound. At present, the commonly used sound insulation performance test method for structural sound is: use a motor to emit steel balls, hit the test sample to make it vibrate, and...
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Login to View More IPC IPC(8): G01N29/04G01N29/22
CPCG01N29/045G01N29/223G01N2291/023
Inventor 王丁蔺磊倪震徐杰方玉茹邱乐
Owner EVERGRANDE NEW ENERGY AUTOMOTIVE INVESTMENT HLDG GRP CO LTD