Case-Based Reasoning System for Bearing Design Part 1. Problem Statements (Domain Knowledge)

Problem Statements Bearing concepts Bearing application areas The goal of the bearing design: Satisfy working conditions, load/speed/life requirements. The factors that a designer must consider when he (she) designs bearings. Calculation involved in bearing design How to achieve the design goal ?

Requirements: 1. High speed 2. Space

Requirements: 1. High loads (shock, unbalance) 2. Long life

Requirements: 1. Extremely high load 2. Long life

Requirements: 1. Extremely high load 2. Long life 3. Corrosive / Humid ambience

Design Problem Input Problem Inputs (known working conditions): Shaft diameter (d ) Shaft rotation speed ( L ) External loads applied on bearings ( P ) Lubrication condition (grease or oil) Achieve: Bearing(s)’ design can satisfy user requirements and bearing capacity under certain loads and speed.

What calculation of bearing design should be involved ?

How to Solve Bearing Design Problem ? Use Case-Based Reasoning Techniques !