Acoustographic diagnosis of abnormalities
View Patent ↗An arrangement and method are provided for acoustographic diagnosis of abnormalities of a product, such as motor vehicle, that includes associating psychoacoustic vector beam data with a three-dimensional graphic surface model, and analyzing the three-dimensional graphic surface model to identify at least a portion thereof associated with unacceptable psychoacoustic levels.
1. A method of acoustographic diagnosis of abnormalities of a product, comprising:
placing an acoustic sensing device in a sensing location with respect to the product;
determining a relationship between the sensing location of the sensing device with respect to a physical datum of the product;
correlating the sensing location of the sensing device to the three-dimensional graphic surface model of the product based on the determined relationship;
pre-setting an acoustic focal length associated with the sensing device to an initial distance with respect to a projection plane of the sensing device;
imparting energy to the product;
sensing objective acoustic data using the sensing device at least while energy is being imparted to the product;
transforming the sensed objective acoustic data into acoustic vector beam data;
setting the acoustic focal length;
recalculating the acoustic vector beam data using the set acoustic focal length;
converting the recalculated acoustic vector beam data into psychoacoustic vector beam data which is then associated with a three-dimensional graphic surface model; and
analyzing the three-dimensional graphic surface model to identify at least a portion thereof associated with unacceptable psychoacoustic levels.
2. The method of claim 1 , further comprising:
recording as a potential abnormality a location of an identified at least a portion of the three-dimensional graphic surface model and psychoacoustic vector beam data associated with the identified at least a portion.
3. The method of claim 2 , further comprising:
determining whether the potential abnormality is an established abnormality;
flagging the product for repair if the potential abnormality is an established abnormality; otherwise
associating a location of the potential abnormality with a corresponding location of the three-dimensional graphic solid model to identify product components corresponding to the location of the potential abnormality; and
identifying potential assembly tolerance issues associated with the location of the potential abnormality to facilitate root cause analysis of the potential abnormality.
4. A method of acoustographic diagnosis of abnormalities of a product, comprising:
associating psychoacoustic vector beam data with a three-dimensional graphic surface model;
analyzing the three-dimensional graphic surface model to identify at least one mesh element thereof associated with unacceptable psychoacoustic levels;
recording a location of the identified mesh element(s) and psychoacoustic vector beam data associated with the identified mesh element(s) as a potential abnormality;
determining whether the potential abnormality is an established abnormality;
associating the location of the potential abnormality with a corresponding location of a three-dimensional graphic solid model to identify product components corresponding to the location of the potential abnormality;
identifying potential component interface tolerance issues associated with the location of the potential abnormality to facilitate root cause analysis of the potential abnormality; and
communicating data associated with the three-dimensional graphic solid model to at least one of an upstream manufacturing or product design engineering operation to address the potential abnormality.