Smooth Sliding is an engineering consulting company run by Dr. Dmitri Kopeliovich - VP R&D of King Engine Bearings and the founder of SubsTech (Substances & Technologies) – leading professional web site on Materials Science and Engineering. Dr. Dmitri Kopeliovich is an author of numerous scientific and engineering publications and patents.
Smooth Sliding provides independent engineering consulting services that help you to solve sliding/plain bearing (eg. engine bearing) related issues: failures, material selection, geometry design and optimization of hydrodynamic conditions.
Dr. Dmitri Kopeliovich is the world leading expert having 30 years of experience in design, technology and materials for sliding bearings in applications such as automotive, energy, aviation, racing, industrial, heavy duty and others.
Partial list of Smooth Sliding customers:
Aria Energy Inc. provides renewable energy to utilities and other customers across the United States. The company engages in operating a portfolio of renewable energy projects that generate electricity and produce pipeline-quality RNG and medium BTU gas.
Innovative Production, through AI Lift, is offering the next generation of Permanent Magnet Motors for submersible pump applications. The company can design a custom solution for both service companies and operators to ensure optimal motor run life in the most challenging of applications.
BioBrent is a renewable energy company that produces electricity and heat from fossil and renewable sources.
BMC Power specializes in the design and development of internal combustion engines, improvement of diesel-fuel piston engine systems, improvement studies of other fuel engines, and hybrid systems.
CAPS Manufacturing is an expert in the highest quality parts for reciprocating equipment. The company produces bearings to customer specifications, or design a custom solution for special application.
Depar Engine Bearings manufactures engine bearings for the automotive, industrial machinery, marine, air and defense industries.
Emerson Climate Technologies, Inc. manufactures climate control systems. The Company provides engineering, design, distribution, and installation of heating, ventilation, air conditioning, and refrigeration solutions.
Hydro Extruded Solutions manufactures and extrudes aluminium. The Company offers aluminium extrusions, building systems, and precision tubing.
IPD is offering design, manufacturing and distribution of after-market engine parts in commercial on-highway, construction, energy, gas, mining, and marine sectors around the globe.
Lovick Engineering is one of Australia’s longest established diesel and natural gas engineering, machining and engine rebuilding companies.
MPR applies equipment and systems engineering capabilities, commercial and regulatory insight and practical operations experience to optimize the management and operation of energy, defense, and other infrastructure facilities.
Ormat Technologies, Inc. offers clean, reliable energy solutions provided from geothermal power, recovered energy, as well as energy storage solutions.
TUSAS Engine Industries Inc. (TEI) is a joint venture of Turkish Aerospace Industries Inc., General Electric (GE), Turkish Armed Forces Foundation (TAFF) and Turkish Aeronautical Association (TAA). TEI designs and manufactures aircraft engines.
Analysis of a bearing failure is a professional work employing great care and thoroughness. It is based on detailed observation of the failed bearing in combination of metallurgical investigation and in-depth consideration of the circumstances of the bearing work, such as loading, conditions and geometry of the journal and functioning of the lubrication system.
Sliding/Plain bearings (including engine bearings) are made of composite materials. They often have multilayer structure comprising different metallic and non-metallic materials. The composition of each layer, its mechanical properties, adhesion to the adjacent layers and the micro-structure are specified for every bearing type. Complex metallurgical investigations of the bearing materials include optical microscope examination, hardness measurement, spectral and chemical analysis, electron microscope research and adhesion tests.
Engine bearings (and some other sliding bearings) work under conditions of alternating loads, various rotation speeds, and intermittent metal-to-metal contacts with the journals and in the presence of impurities transported in the oil. Selection of the optimal material for a particular bearing is determined by the operation conditions including maximum load, rotation speed, thickness of oil film, the engine type (diesel, gasoline), the bearing location (connecting rod, main or camshaft), its position (upper or lower).
Geometry of a sliding bearing should provide optimal hydrodynamic conditions of the bearing friction, distribution of the load over the bearing surface and firm tightening in the housing. The geometry parameters such as clearance, eccentricity, crush height, oil groove and oil hole dimensions, crush relief, location lug design are analyzed and optimized.
The hydrodynamic conditions of bearing operation can be calculated theoretically. Such calculations are used for simulation of bearing performance under various conditions. Calculating the thermodynamic, dynamic, hydrodynamic and mechanical parameters of bearing operation result in values of maximum loads, minimum oil film thickness, oil temperature rise, power loss. When a bearing is being designed, theoretical simulation of hydrodynamic lubrication is performed to optimize bearing operation.
Bearing development is a complex work comprising theoretical calculations of thermodynamic, dynamic and hydrodynamic characteristics of the engine, selection of optimal bearing material or development of a new material, comprehensive metallurgical investigations, functioning tests of the prototype bearings and determination of technological processes for the bearings fabrication.
Smooth Sliding offers training courses and seminars for engineers, mechanics, sales managers and other professionals dealing with engine bearings.
The courses/seminars are conducted by Dr. Dmitri Kopeliovich in form of intensive interactive training including examination of samples of actual engine bearings of different design, materials application and analyses of typical bearing failures.
The courses provide the participants with advanced principal and practical knowledge in all aspects of engine bearing operation.
Subject of the course:
Engine Bearings – principles of operation, design, materials, tests, failure analyses and investigations. Upon course completion, participants will be awarded Course Completion Certificates issued by SmoothSliding and signed by Dr. Dmitri Kopeliovich.
Courses may be held at the customer's facilities, or at Smooth Sliding. Number of participants is not limited.
VP R&D at King Engine Bearings.
World leading expert (30 years of experience) in design, technology and materials for sliding bearings in applications such as automotive, energy, aviation, racing, industrial heavy duty, and others.
Founder and owner of SubsTech (Substances & Technologies) – a leading professional website on Materials Science and Engineering.
Author of numerous scientific and engineering publications and patents.
Founder and owner of Smooth Sliding - an engineering consulting company providing services that help to solve sliding bearing related issues.