US 11,745,396 B2
Device and method for controlling transverse and longitudinal stress waves during curing process of energetic composite materials
Chunguang Xu, Beijing (CN); Peng Yin, Beijing (CN); Yuren Lu, Beijing (CN); Jianfeng Song, Beijing (CN); Wenyuan Song, Beijing (CN); and Shuangyi Li, Beijing (CN)
Assigned to BEIJING INSTITUTE OF TECHNOLOGY, Beijing (CN)
Filed by BEIJING INSTITUTE OF TECHNOLOGY, Beijing (CN)
Filed on Mar. 1, 2021, as Appl. No. 17/188,171.
Claims priority of application No. 202010183840.1 (CN), filed on Mar. 16, 2020.
Prior Publication US 2021/0347095 A1, Nov. 11, 2021
Int. Cl. B29C 35/02 (2006.01)
CPC B29C 35/0261 (2013.01) [B29C 35/0227 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A device for controlling transverse and longitudinal stress waves during the curing process of energetic composite materials, comprising:
a curing vessel containing energetic composite materials to be cured;
a vertical exciter that is vertically incident to the curing vessel; and
a plurality of oblique exciters arranged around the vertical exciter and obliquely incident to the curing vessel, wherein the oblique exciters have inclination angles between a first critical angle and a second critical angle and emit ultrasonic stress waves to reduce and homogenize axial residual stress and radial residual stress of the energetic composite materials and
wherein an incident angle corresponding to a refraction angle of 90 degrees is the first critical angle, and
a refraction angle corresponding to an incident angle of 0 degrees is the second critical angle.