Lightweight Energy-Absorbing Solutions
What are Hold-Down release mechanisms or HDRMs?
Hold-down release mechanisms are critical components used in space, aerospace, mechanical systems to restrain and subsequently release structures in a controlled manner.
When constructed from aluminum foam, these systems gain unique advantages in weight reduction, energy absorption, and structural efficiency.
Aluminum foam HDRMs are particularly useful in environments where weight savings and shock mitigation are critical.
Engineers designing aluminum foam hold-down mechanisms must account for the
material’s compressive behavior, strain-rate sensitivity, and bonding with
conventional materials. Proper integration ensures reliable release performance
and structural integrity under load.
Aluminum foam HDRMs are expect more customizable and efficient then competing materials. Aluminum foam also absorbs energy with no recoil, a key advantage in space applications.
ERG has designed hundreds of HDRM and bolt capture devices and we look forward to helping you with yours!
Why ERG?
ERG has designed, developed, and delivered numerous Duocel® Energy Absorbers for critical applications. We have the experience and engineering expertise, including an in-house test laboratory and database, to precisely adjust the Duocel® parameters to meet the mechanical and performance requirements for a wide range of designs. ERG has a 50-year history of making quality Duocel® materials and is certified to AS9100 ERG is a vertically integrated company focused on customer service and turning ideas into production parts.
Key Advantages of Foam HDRM’s
- Extremely lightweight compared to solid metals
- High energy absorption and vibration damping
- Corrosion resistance
- Thermal stability
- Improved safety during release events
Applications
- Satellite deployment systems
- Launch vehicle restraints
- Automotive crash energy absorbers
- Industrial safety release systems