Advanced Rigging Physics for Rope Rescue – 2

Advanced Rigging System

This Rigging Physics for Rope Rescue 2 course builds on the knowledge and skills developed in Rigging Physics for Rope Rescue 1 and is designed to further expand the participant’s knowledge in physical principles that govern rope rigging.

The focus is on performing basic rigging physics calculations to assess the effects of friction, torque, tension, compression, shock loads, and mechanical advantage systems that are created by the design of the rigging system.

This class is designed for rope rescue instructors and rope access practitioners. The first day of this two-day program will be held in the classroom in Tempe, Arizona. The second day will be held at the UltraSafe UL testing facility.

This class can also be taught at your location. Request a quote.

Prerequisites: Before attending this class, students need to have previously completed Rigging Physics for Rope Rescue 1.

Course Outline

Module I: Anchor Physics

  • Vector Calculations: Directional Pulleys
  • Vector Calculations: Multipoint Anchors

Module II: Friction Coefficient Study

  • Static Friction Calculations
  • Dynamic Friction Calculations
  • Capstan Equation
  • Friction and Equipment

Module III: Torque and Bending Moment

  • Effects on Elevated Anchors
  • Aerial Ladder Rope Rigging

Module IV: Practical Exercises

  • Failure Test Mainline Systems
  • Impacts on Belay Systems
  • System Elongation
  • Human Reaction Study
  • Friction Tests
  • Effects on Mechanical Advantage Systems
  • Overall System Effects
  • Edge Friction Study: Single and Multi-person Loads
  • Horizontal Lifeline System Tests

Course Objectives

At the completion of this training, students should be able to:

  1. Analyze the various forces on pulleys and multi-point anchors
  2. Identify the causes and effects of friction of rope on various surfaces.
  3. Identify the cause and effect of torque and bending moment created by rope rigging used in conjunction with aerial ladders, cranes and other improvised high points.
  4. Analyze fall factors and shock force created by simulated failures of lead climbing and rope access systems.

Jim Johnson May 11, 2017
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