Category: Case Studies

Strain Gauging and Fatigue

This whitepaper discusses the benefits of strain gauging when applied to fatigue assessments of critical mechanical equipment. The basic principles of fatigue analysis are discussed, with a focus on the effect of errors in assessment inputs. Finally, the strain gauging results for a drum separator are presented. These results demonstrate the fact that although approximate

Continue Reading

Cycle Counting for Fatigue Analysis

1. PROBLEM DESCRIPTION Deacon Engineers carried out the design of large, rotating digesters for the treatment of municipal solid waste. The digesters are approximately 65m long and 4.5m in diameter and rotate continuously, at 1 rpm, while processing up to 500 tonnes of waste. Due to the cyclic nature of the loading, careful attention had

Continue Reading

Solution for Vibration in Crushing Structure

Problem The primary crusher structure at an iron ore facility was exhibiting consistent, unacceptably high vibration levels during operation. The primary crusher operated at approximately 4Hz and was fed from a vibratory feeder operating at approximately 1000tph, at a frequency of 800-1000rpm. Deacon Engineers were contracted to come with a solution and necessary modifications to

Continue Reading

Safe Design of Rotating Equipment

1. PROBLEM DESCRIPTION Deacon Engineers carried out the design of large, rotating digesters for the treatment of municipal solid waste. The digesters are approximately 65m long and 4.5m in diameter and rotate continuously, at 1 rpm, while processing up to 500 tonnes of waste. Due to the cyclic nature of the loading, careful attention had

Continue Reading

Fatigue Assessment of Welded Joints

1. PROBLEM DESCRIPTION Deacon Engineers carried out the design of large, rotating digesters for the treatment of municipal solid waste. The digesters are approximately 65m long and 4.5m in diameter and rotate continuously, at 1 rpm, while processing up to 500 tonnes of waste. Due to the cyclic nature of the loading, careful attention had

Continue Reading