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Application Analysis of Equalizing Load Lifting Bars to Reduce Distortion Control Backup Structure when Lifting and Turning Thin Plate Blocks

  • Application Analysis of Equalizing Load Lifting Bars to Reduce Distortion Control Backup Structure when Lifting and Turning Thin Plate Blocks
Overview

Application Analysis of Equalizing Load Lifting Bars to Reduce Distortion Control Backup Structure when Lifting and Turning Thin Plate Blocks (2005-333-032)

Project Team:

  • General Dynamics- NASSCO

December 2017 – December 2018

NSRP ASE INVESTMENT: $150K

OBJECTIVE:

The project objective is to determine the feasibility and cost savings of reducing or eliminating temporary bracing, additional back up structure, and deck and bulkhead inserts with the use of equalizing loader bars for lifting and turning thin plate blocks and grand blocks as compared to traditional lifting arrangements.

 SUMMARY:

The project team will focus on the following methods and procedures to accomplish goals and objectives:

  • Develop traditional lifting arrangements for a set of thin plate blocks and grand blocks
  • Develop lifting arrangements using “equalizing loader” type lifting bars for the same set of thin plate blocks and grand blocks by applying best practices
  • Assess the potential for reducing or eliminating temporary bracing, additional back up structure, and deck and bulkhead inserts based on a comparison of the lifting arrangements
  • Perform a gap analysis in overall work content using both lifting arrangements
  • Identify potential cost reductions

The results of the research accomplished will enhance the collective understanding of using an equalizing load bar. Savings gained from industry-wide availability of the study will collectively reduce the cost of building ships.

POINT OF CONTACT: Romeo Moe | General Dynamics – NASSCO | RMoe1@nassco.com

   NSRP is co-funded by the U.S. Shipbuilding Industry and U.S. Navy

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