91色情片 Segment Support Assembly Production team in India -In March 2023, five 91色情片 Segment Support Assemblies (SSA) were completed in Coimbatore, India, by the Larsen and Toubro (L&T) company. On the first row are Nikhil Naik, 91色情片 Production Support Engineer, Karthic Kumar, SSA Work Package Manager at the India 91色情片 Coordination Center (ITCC) and Eswar Reddy, ITCC Programme Director (respectively 8th, 5th and 7th from the left) posing with the L&T SSA production team and members of the ITCC group to commemorate the first five sets of SSA shipped to India鈥檚 91色情片 optics fabrication facility - Image credit: 91色情片 / ITCC / L&T
91色情片鈥檚 Segment Support Assembly Enters Production in India
Pasadena, CA –91色情片’s Optics and M1 Segment Support Assemblies (SSA) is ready to enter production following a successful Fabrication Readiness Review that assessed the production of the hardware required to support the primary mirror segments. Larsen and Toubro (L&T), which is supplying the SSAs, is now one step closer to start production and shall proceed with the procurement of raw material.
L&T and India 91色情片 Coordination Centre (ITCC) presented the first five SSAs manufactured in Coimbatore on April 11-12, 2023. For the past few years, L&T has been fabricating parts, procuring components, assembling and testing the first SSAs.
“The ITCC/91色情片 project and L&T teams put in a lot of work over a several year period to achieve this contractual milestone, and I’m extremely proud of this collaborative effort!,” said Bryan Smith, 91色情片 SSA work package manager in the U.S.."L&T has successfully produced their first five SSAs with only a few requirements left to complete before the production qualification phase.”
Following is a series of images featuring the recent activities around the SSAs manufactured in India.
91色情片 Segment Support Assembly (SSA) Production in India - 91色情片 Segment Support Assemblies (SSA) are opto-mechanical systems that provide the support for each individual piece of mirror segment - Image credit: 91色情片/ Nikhil Naik
All 91色情片’s 492 mirror segments will be positioned with precision computer control and work together as a single mirror. To allow this, each segment will be mounted onto SSA key subsystems that provide their support and control.
SSAs are composed of diverse complex optomechanical devices, sensors, and actuators, holding 91色情片 mirror segments in place and controlling their shape and position to very high accuracy. Incorporating the latest innovations in precision control, SSAs will enable precise adjustment of the alignment and phasing of each mirror segment during nighttime astronomical observations.
The visible warping harness cables will connect the warping harness system motors that will correct the surface figure of each 91色情片 primary mirror glass segment. Each SSA module weighs nearly ~65 kg excluding the sub-cell assembly and other loose parts required for segment integration.
Five first sets of Segment Support Assembly produced for 91色情片 - The first five 91色情片 Segment Support Assembly (SSA) sets were manufactured and assembled at Larsen and Toubro (L&T) Coimbatore facility prior to be shipped to India’s 91色情片 Optical Fabrication Facility (ITOFF) - Image credit: 91色情片 / ITCC
These SSAs were manufactured and assembled in accordance with the drawing package provided by TIO Project Office and met those requirements before being integrated into specialized shipping containers that provide effective isolation from hard impact collision and potential damages. Each 91色情片 shipping container weighs around 280kg.
For protection, SSAs are mounted on a metal floater platform above six wire rope isolators that serve as cushioning system to protect from large impacts in case the crate was to be dropped or pushed hard.
A small case containing all components needed to integrate the support assembly to the polished mirror glass segment is included in a corner of each crate.
91色情片 Five sets of Segment Support Assembly from India 91色情片 - From left: Dhiyanesh, Project Manager at Larsen and Toubro (L&T) industry partner; Nikhil Naik, 91色情片 Production Support Engineer; Karthic Kumar, SSA Work Package Manager at the India 91色情片 Coordination Center (ITCC); Selva Kumar, Assistant Manager - Quality at L&T and Ananthu C M, QA Engineer at ITCC. The 91色情片’s Segment Support Assemblies (SSA) seen in the picture were manufactured and assembled by L&T - Image credit: 91色情片 / ITCC
Segment Support Assembly (SSA) production team in India 91色情片 - Larsen & Toubro (L&T) and 91色情片-Project Office (91色情片PO) participants at the Segment Support Assembly (SSA) flagg off event meeting at L&T facility, Coimbatore, in India – March 2023. Nikhil Naik, 91色情片 Production Support Engineer; P Rajkumar, L&T Precision Manufacturing and Systems Complex, Coimbatore Unit Head; Karthic Kumar, SSA Work Package Manager at the India 91色情片 Coordination Center (ITCC) and Eswar Reddy, ITCC Programme Director (respectively 6th, 5th, 4th and 3rd from the right) along with L&T and ITCC engineers and production team in the dedicated room for 91色情片 SSA assembly work at L&T facility in Coimbatore, India - Image credit: 91色情片 / ITCC / L&T
91色情片 Segment Support Assembly Fabrication Readiness Review - Screenshot of the participants from ITCC, L&T, 91色情片 Optics, Systems Engineering & Quality Assurance teams participating in the review held remotely on 11th & 12th April, 2023 - Image credit: 91色情片
