HEAT DISSIPATION ARTIFICIAL META-STRUCTURES (AMS) FOR SPACE ELECTRONIC DEVICES IN EXTREME ENVIRONMENT, DA
Abstract
A growing interest in spacecraft and more-electric aircraft (MEA) makes it more critical to manage and protect space and aerospace electronics than ever. In particular, exterior parts with new thermal management solutions lightweight-strong properties are indispensable to the electronic devices, as the electronics requires higher power, density, and 3D integration under complex and extreme space and aerospace environments. Therefore, a new type of metallic structures with high heat dissipating and energy absorbing properties is necessary for an electronic exterior shell part. Here, a lightweight and strong artificial meta-structure (AMS), which is capable of effectively managing thermal performance, will be developed and additively manufactured by laser-powder bed fusion (L-PBF) technique. The metallic AMS will have unprecedented thermal management capability along with the energy absorbing properties by designing the meta-structure lattices. In order to achieve outstanding thermal management and energy absorption capability, AMS for the exterior shell part will be analyzed and optimized by coupled thermal and mechanical simulation. A 17–4 PH grade (UNS S17400) stainless steel will be chosen as a raw material and corresponding L-PBF process conditions will be optimized to fabricate the high quality AMS such as the defect-free structure. The fundamentally new and innovative AMS, considering characteristics of the L-PBF process, will be suggested via the proposed research. The designed AMS could open a new thermal management solution especially for the space and aerospace industry, and further industrial fields, such as automobile, drone, etc.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 04, 2023
- Source ID
- FA23862210104
Entities
People
- Jonghwan Suhr
Organizations
- Air Force Office of Scientific Research
- Sungkyunkwan University
- United States Air Force