The Optimal Design of the Press Roller to Improve the Winding Molding Quality of Heat Insulation-Reference-Cited by-同舟云学术

The Optimal Design of the Press Roller to Improve the Winding Molding Quality of Heat Insulation

Published:2024-04-12 Issue:8 Volume:17 Page:1769
ISSN:1996-1944
Container-title:Materials
language:en
Short-container-title:Materials

Author:

Zhang Weichao¹,Hou Zengxuan¹,Li Hongli¹,Chen Kaiyin¹

Affiliation:

1. State Key Laboratory of High-Performance Precision Manufacturing, School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China

Abstract

In the heat insulation winding molding process of solid rocket motors, the pressure applied by the press roller directly affects the quality of the winding molding. Insufficient pressure can result in poor bonding quality and may cause defects. This paper aims to provide an optimal design of the press roller to improve the winding molding quality of the heat insulation. The effect of the cylindrical press roller on the pressure distribution was analyzed using the elastic foundation model and a finite element (FE) model, which was assessed by Hertz theory. Subsequently, the press roller was optimized to an elliptical concave design. The effect of the radius of the elliptical concave press roller on the pressure distribution was analyzed. A comparison of the effect of the elliptical concave press roller and the cylindrical press roller on the pressure distribution was conducted using the FE model. The results show pressure uniformity is significantly improved when the elliptical concave press roller is employed on the mandrel with the smallest radius. Additionally, the elliptical concave press roller increases the pressure at the edge of the tape, which reduces the risk of lifted edges and, thereby, improves the winding molding quality of the heat insulation.

Funder

sub-project of a major special program

Publisher

MDPI AG

Link

https://www.mdpi.com/1996-1944/17/8/1769/pdf

Reference29 articles.

1. Twichell, S.E., and Keller, R.B. (1976). Solid Rocket Motor Internal Insulation, NASA. NASA-SP-8093.

2. Marks, J.D. (1986). Process for Lining Composite Vessels. (4596619), U.S. Patent.

3. Bonnefoy, P. (1991). Method and Apparatus for Manufacturing a Covering for the Internal Thermal Protection of a Propeller. (0410852), E.P. Patent.

4. Tam, W.F.S., and Bell, M.S. (1993, January 28–30). ASRM case insulation development. Proceedings of the 29th Joint Propulsion Conference and Exhibit, Monterey, CA, USA.

5. Hou, Z.X., Zhao, Y.H., Li, N.N., Zhang, D.J., Su, J.H., Zhang, W.C., Huang, L., and Xu, M.H. (2020). Solid Rocket Motor Insulation Layer Automatic Winding Device. (202010052895.9), C.N. Patent.