US 11,656,148 B2
Elastic material vibration test apparatus
Byungguk Lim, Seoul (KR); Chang Hoon Lee, Gyeonggi-do (KR); Myung Sung Kang, Gyeonggi-do (KR); and Ji Young Yeom, Gyeonggi-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed on Dec. 7, 2020, as Appl. No. 17/113,290.
Claims priority of application No. 10-2020-0058960 (KR), filed on May 18, 2020.
Prior Publication US 2021/0356353 A1, Nov. 18, 2021
Int. Cl. G01M 7/02 (2006.01); G01M 7/06 (2006.01); G01M 7/08 (2006.01)
CPC G01M 7/027 (2013.01) [G01M 7/02 (2013.01); G01M 7/025 (2013.01); G01M 7/06 (2013.01); G01M 7/08 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An elastic material vibration test apparatus, comprising:
a lower support plate having an upper surface on which an elastic material to be tested is placed;
an upper support plate disposed above the lower support plate to be spaced apart from the lower support plate;
a vibration generator disposed below the lower support plate;
a pillar connecting the lower support plate and the upper support plate;
a pressing rod configured to pass through the upper support plate and ascend and descend in a vertical direction;
an air bearing installed on the upper support plate and supporting an outer surface of the pressing rod in a non-contact state;
a pressing plate coupled to a lower end of the pressing rod to press an upper surface of the elastic material;
one or more weights coupled to the pressing rod above the air bearing;
a weight coupling shaft installed on an upper portion of the pressing rod and having a central axis coinciding with the pressing rod; and
a fastening member configured to fasten the one or more weights coupled to the weight coupling shaft to maintain a constant test height which the height of the pressed elastic material by adjusting the weight of the weights;
a first vibration sensor installed on the lower support plate;
a second vibration sensor installed on the pressing plate; and
a controller configured to calculate an output value for vibration damping performance of the elastic material based on detection information of the first vibration sensor and the second vibration sensor,
wherein the lower support plate, the upper support plate, the pressing plate, and the one or more weights are provided in a disk shape and installed such that centers thereof coincide with a central axis of the pressing rod, and
wherein:
the upper support plate has an outer diameter less than or equal to that of the lower support plate,
the weights have an outer diameter less than that of the upper support plate, and
the pressing plate has an outer diameter less than that of the upper support plate and an area greater than that of the upper surface of the elastic material.