Dynamic Loading Journal Bearing Test Rig Christina Amendola | Kevin - PowerPoint PPT Presentation

Dynamic Loading Journal Bearing Test Rig Christina Amendola | Kevin Burnett Michael Bush | Anthony DePina | Molly Mariea

Reciprocating Compressors Also known as a positive-displacement compressor or piston compressor produces high pressure gas by crankshaft driven piston. Process: Applications: - Oil refineries 1. Intake gas enters suction manifold - Gas pipelines 2. Gas flows into compression cylinder - Chemical plants a. Compression occurs by reciprocating piston driven - Natural gas processing plants b. via crankshaft - Refrigeration plants 3. Gas is discharged Pictures From: http://pixshark.com/reciprocating-gas-compressor.htm Content Adapted From: http://en.wikipedia.org/wiki/Reciprocating_compressor

Journal Bearings ● Also known as plain bearings consist of journal (shaft) that rotates freely in supporting metal sleeve (shell) Consists of no rolling elements ○ Oils or grease used for cooling and to flush contamination (seen in bottom right picture) ● High-speed journal bearings are always lubricated with oil ○ Grooves in the bearing shell are used to distribute the oil throughout the bearings’ surfaces ● Sleeve Journal Pictures and Content Adapted From: http://www.machinerylubrication.com/Read/779/journal-bearing-lubrication

Why a test rig? P14453 replicated the compressor environment but could Currently replacing the journal bearing in a reciprocating not achieve the dynamic loading associated with a compressor takes approximately half a day Dresser-Rand ESH-1 reciprocating compressor. Below is their prototype Last year’s team, P14453, was tasked with creating test rig Our team, P15453, was t asked with adapting the test rig that replicated journal bearing environment and allowed to accurately achieve load profile that bearing much quicker bearing replacement time experiences in compressor while adding add data acquisition capabilities

Required Loading Profile The loading profile in a reciprocating compressor resembles a sine wave as seen to the right. Position Force in Y This oscillatory motion requires a back Force in X and forth movement in both the x and y direction. Force X: ~900 lbf at 6Hz Y: ~200 lbf at 6 Hz Pictures and Content Adapted From: Holzenkamp, Markus, "Modeling and condition monitoring of fully floating reciprocating compressor main bearings using data driven classification" (2013). Thesis. Rochester Institute of Technology.

Achieving Actuation Comparing All Options

Achieving Actuation Top Options Electromechanical Piezoelectric Actuators Actuators (EMA) Pictures From: Moog and Wikipedia

Achieving Actuation Final Selection: Electromechanical Actuators

Data Acquisition

ASEE Conference: Syracuse, NY

Moog’s Visit

Special Thanks to... & for their financial support and technical expertise

Acknowledgments Team P15453 would like to express our most sincere gratitude to Dr. Jason Kolodziej, William Nowak, Joe Dyer, Jim Kowalski, Scott Delmonte, Steve Lucchesi, and Dr. Stephen Boedo for their guidance throughout the design and build phase. We would also like to acknowledge the RIT Machine shop staff: Robert Kraynik, Jan Maneti, Dave Hathaway, and Ryan Crittenden for their continuous assistance and support.