The push-out infrared seeker window in high-speed flight bears the functions of transmitting target infrared signal, maintaining aerodynamic shape and protecting internal imaging system. However, under the combined action of complex aerodynamic and thermal loads in high-speed flight, the infrared window may have the risk of performance degradation or even functional and structural failure. In this paper, the aerodynamic thermal simulation analysis method of the push-out infrared seeker is established. Based on the FLUENT fluid simulation analysis software, the flow field simulation analysis under typical flight conditions is completed, and the aerodynamic pressure and heat flow coupling distribution on the surface of the infrared seeker are obtained. The influence of flight parameters on the flow field and aerodynamic thermal coupling outside the infrared window is analyzed. On this basis, the distribution of temperature and stress of infrared window is obtained by finite element software simulation analysis, which provides guidance for infrared window material and structure design.
The infrared seeker systems of hypersonic missiles flying in the atmosphere faces the severe aerodynamic thermal environment. The aerodynamic thermal radiation of the high temperature window is one of the key factors affecting the performance of the infrared detection guidance systems. In this paper, the aerodynamic thermal environment of the infrared window of hypersonic missiles is analyzed. The thermal radiation power of the high temperature window received by the detector is obtained through theoretical analysis and numerical simulation. The results of the two are compared to verify the simplified simulation method.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.