Launch Lock Isolation

Mooghas decades of experience with on-orbit听isolation. Launch lock isolators have several听acronyms in the industry, including LLI (Launch听Lock Isolator), ISA (Isolated Strut Assembly), and听V-Strut (Viscoelastic damped strut). An arrangement听of LLIs can rigidly support payloads during launch听and unlock on orbit to provide isolation over the听required mission life. Lock release is a zero shock听release event to the system. LLI is a scalable product听that allows for tailoring to the customer鈥檚 specific听geometry and on-orbit isolation performance.听Moogstructural dynamics experts are available every step of the way to cater the LLI units听to specific mission objectives.

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Overview

Our special in-house tools and processes allow the team to effectively solve disturbance听problems quickly and offer both custom and COTS hardware solutions. We have close听relationships with a mature supply chain and an in-house test facility for a wide variety of听environments. Our group of experts are easy to work with and are known throughout the听industry for our customer service.

Locked Configuration

The LLI Locked configuration provides a primary completely metallic load path during launch and matches the stiffness in the elements it replaced in the spacecraft鈥檚 structure. The LLI units can be designed as an entire strut or a drop in module with existing planned architecture. Our design team can also assist with the design of the strut鈥檚 pinned joints. Pinned connections can be simple or preloaded to ensure minimal to zero slop. Strut may be specified to a static length or made variable with adjustability built in.听

Unlocked Configuration

The LLI unlocked configuration is the secondary load path activated electronically using a special actuator during the on-orbit phase. Unlocking triggers a very low shock event that transfers the load to a secondary path. Once unlocked the strut becomes a single degree of freedom member. This secondary load path incorporates a passive damper turning the array of struts into a compliant low frequency isolation system.

Launch Lock Isolation technology can be used for the following applications:

Optical Payloads
Component Isolation
听听听听听听听听听- Sensitive Electronics
听听听听听听听听听- Cryocoolers
听听听听听听听听听- Reaction Wheels
听听听听听听听听听- Control Moment Gyroscope