Design and Application of Externally Pressurized Hydrostatic Oil Bearings for Machine Tools
Credit: 4 PDH
Subject Matter Expert: Jyoti Mukherjee, P.E., DEng, M.S., MBA, PGDBM
In Design and Application of Externally Pressurized Hydrostatic Oil Bearings for Machine Tools, you'll learn ...
- The operating principles and performance characteristics of externally pressurized hydrostatic oil bearings.
- The integration of hydraulic supply systems, restrictors, bearing pads, and oil-film characteristics in hydrostatic bearing design.
- The evaluation of bearing load capacity, stiffness, lubricant flow, and hydraulic power requirements for machine tool applications.
- How to apply hydrostatic bearing design procedures to develop customized bearing systems for specialized engineering applications.
Overview
This course provides a comprehensive introduction to the design and application of externally pressurized hydrostatic oil bearings used in machine tool applications. It explains the operating principles of hydrostatic bearings and contrasts them with hydrodynamic bearings, emphasizing their ability to support heavy loads at very low or zero operating speeds while maintaining a continuous oil film that eliminates metal-to-metal contact.
The course examines the advantages, limitations, and practical applications of hydrostatic bearings before introducing the hydraulic supply system, bearing runners, bearing pads, restrictors, and other essential system components. Participants learn how operating variables such as film thickness, oil viscosity, recess pressure, oil flow, and bearing stiffness interact to determine bearing performance. The course also presents methods for selecting and designing capillary and orifice restrictors, calculating bearing pad coefficients, optimizing hydraulic power consumption, and performing iterative bearing design calculations for single-pad and multi-pad systems.
Through practical engineering examples, participants gain an understanding of the design methodology required to develop customized hydrostatic bearing systems for machine tools and other specialized heavy-duty applications.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- The differences between hydrostatic and hydrodynamic bearings and the applications best suited for each.
- The advantages, limitations, and operational characteristics of hydrostatic oil bearings.
- The components and operation of hydraulic systems used to support externally pressurized bearings.
- The relationships among oil film thickness, recess pressure, oil flow, viscosity, and external loading.
- The function and design considerations of capillary and orifice restrictors in multi-pad bearing systems.
- The calculation and application of load, flow, and power coefficients for bearing pad design.
- The evaluation of bearing stiffness and its influence on machine accuracy, stability, and surface finish.
- The design methodology for single-pad, opposed-pad, and multi-pad hydrostatic bearing systems.
- The optimization of hydraulic power consumption, oil temperature, and bearing performance through design iteration.
- How to apply engineering calculations and practical design procedures to customize hydrostatic bearings for machine tool applications.
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 20 questions. PDH credits are not awarded until the course is completed and quiz is passed.
| This course is applicable to professional engineers in: | ||
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