TRAINING.

Overview

After participating in this course, you will be able to:

• Calculate dynamic loads from various types of machinery
• Follow the decision process to select the type of foundation: shallow or pile
• Build on your understanding of the dynamic response of tabletop structures for equipment support
• Analyze the dynamic response of various types of shallow and pile foundations
• Apply the knowledge of analysis and design procedure for equipment foundation design and evaluate vibration damage and take suitable remedial measures

Description
The course considers loads induced by different machinery, modes of structural response of the foundation and/or supporting frame, as well as the response and damping provided by the soils. It covers fundamentals of machine dynamics for the derivation of the applied loads, the behaviour of different types of rigid block and pile-supported foundations, analysis and design of tabletop structures for equipment support, machine foundations on frozen soils, vibration damage assessment and prevention.

This course will start with the concepts and practical “rules of thumb” used in the preliminary layout and sizing of the foundations and focus on the explanation and demystifying of the basic concepts, relating them to the first principles of engineering. You will be able to design equipment foundations using hand techniques, common finite element packages, and specialized software (DYNA 6).

Course Outline:

• Intro to the design of equipment foundations
• Method of dynamic impedance
• Dynamic soil properties
• Design of shallow and pile foundations
• Determination of loads from different types of machinery
• Dynamic response of vibratory machinery foundations
• Dynamic response of impact machinery foundations
• Vibration damage and suitable remedial measures
  • Tabletop structures
• Dynamically loaded foundations on frozen soils
• Methods of analysis and design examples

Who Should Attend:
Consulting Engineers (Civil and Structural) who must analyze and design equipment foundations and wish to acquire advanced knowledge and practical design skills.

Special Features:
This is an advanced course targeting skilled designers who want to learn how to solve complex design problems with a full understanding of structural behaviour. Participants will work on several examples under instructor guidance.

Please note: You can check other time zones here.

Syllabus

Day I

Welcome, Introduction, Course Preview, and Learning Objectives

Introduction to Design of Equipment Foundations
Design objectives, design procedure, degrees of freedom, pure and coupled modes of vibration, free and forced vibrations, resonance. Types of foundations and their uses: rigid block foundations, mat foundations, deep foundations, the significance of damping

Dynamic Soil Properties
Small strain elastic moduli of soil, shear wave, compression wave, methods of soil exploration for dynamic problems, method of dynamic impedance

Design of Shallow Foundations
Theory of isotropic and layered elastic half-space, the response of circular footings, shape factors for the response of non-circular footings, stiffness and damping functions, frequency dependence, the effect of footing embedment

Design Example
Free vibration analysis of a rigid block foundation

Dynamically Loaded Foundations on Frozen Soils
Frost effects, dynamic properties of frozen soil, design considerations, static and dynamic design criteria

Adjournment

Day II

Design of Pile Foundations - Single Piles
Examples of piles applications, the effect of vibration on static pile design, stiffness and damping of single piles, pile dynamic response - analytical methods, pile dynamic response using common FE software

Design of Pile Foundations - Pile Groups
Pile-soil-pile interaction, understanding of dynamic group effects, group factors calculation

Design Example
Common pump foundation on piles (illustrates the concept of “good” vs “bad” speed range for rotary machinery)

Dynamic Response of Vibratory Machinery Foundations
Dynamic forces from reciprocating machinery, dynamic forces from rotary machinery, high-tuned and low-tuned foundations, normal and abnormal regimes, basics of rotor dynamics, critical and tripping speeds

Dynamic Response of Impact Machinery Foundations
Types of impact machinery, foundations for impact machinery, design criteria, derivation of impact forces, mathematical models and methods of solution

Vibration Damage and Taking Suitable Remedial Measures
Design criteria, resonance separation, admissible dynamic amplitudes and velocities, stationary and transitional resonance, problem assessment and evaluation, remedial principles and techniques

Adjournment

Day III

Tabletop Structures
Definitions, modes of oscillation, foundation-structure interaction, stiffness and damping, static and dynamic design criteria, method of symbolic dynamic models

Methods of Analysis (based on example) - tabletop-mounted, turbine-driven centrifugal compressor
Hand analysis using MS Excel: generalized dynamic models, equations for free vibrations, equations for forced vibrations, interpretation of results

Methods of Analysis (based on example) - tabletop-mounted, turbine-driven centrifugal compressor
Demonstration of computer analysis using common FE software

Methods of Analysis (based on example) - skid-mounted reciprocating compressor
Hand analysis partially automated using common FE software: derivation of stiffness and inertial properties, pile group effects, equations for free vibrations, assessment of damping, equations for forced vibrations, interpretation of results, mitigation of excessive vibration

Methods of Analysis (based on example) - oil pump on pile foundation
Demonstration of computer analysis using DYNA 6 software

Open Forum

Questions and Answers and Feedback to Participants on Achievement of Learning Objectives

Instructor

Konstantin Ashkinadze, Ph. D., P.Eng.

Konstantin is the founder and principal of Pro Dynamic Solutions Inc, a research and industrial consulting company from Edmonton, AB.

Previous employment included senior and principal structural engineer positions with Jacobs Canada Ltd., ECO-Technica, Bantrel, Colt Engineering (presently Worley Parsons), Stantec Consulting and CoSyn Technology. He participated in major projects of expansion and construction of Alberta's oil and gas and petrochemical facilities. Konstantin graduated with honours from Moscow State Construction University, Faculty of Civil and Industrial Construction.

He studied at the graduate school of Central Research and Design Institute for Dwellings, Moscow. His Ph.D. thesis was devoted to the strength and seismic resistance of intercrossing (T-sectioned) load-bearing reinforced concrete structural walls in residential high-rise buildings. He conducts active, self-directed structural research driven by practical problems in industrial facilities design.

Konstantin is the author of more than 35 technical publications and has participated in numerous international conferences.