Upload
phungtuong
View
221
Download
1
Embed Size (px)
Citation preview
Innovation for the real world: Reliable rotation by SKF
Victoria Van Camp – CTO and President, Innovation & Business Development
© SKF Group
The P-F* curve
Time
Vib
ratio
n
Defect starts
Failure
Reaction time for maintenance planning
28/11/2018Slide 5
P-F: Potential failure – Functional failure
© SKF Group
The more we can detect, the more insight and opportunity we generate
➢ # of points monitored is important but…
➢ # of points connected to REP Centers is KEY
How do we get there?
• Ease of connection and use: your daily work tool
• Seamless and enjoyable UX
• Connected to bearings / housings from the start
• AI for detection, analysis and action
© SKF Group
Quick Collect: Seamless connections
API API API
Create asset Measure assetCreate profile Pulse Check
API
SKF Digital Platform
21 3 4
© SKF Group
SKF Multilog IMx-16Plus
Connectivity:
• Mobile data connectivity (4G)
• Wi-Fi
4G
Extended modbus capabilities for data sharing
• Dual master and slave mode
• Up to 4 connections to slaves and/or masters
© SKF Group
Next Generation Systems
IMx-1 low cost sensor computer:
• 2.4GHz ISM band mesh
• Acceleration, velocity, enveloping,
temperature
• Onboard alarm assessment logic
• Configurable measurement and transmit
rates
Smart Gateway:
• Sensor interface for configuration and control
• Patented 2.4 GHz coexistence technology
• Fast time synchronization between sensors
• Enables data sharing with 3rd party systems
© SKF Group
Data
ge
ne
rati
on
Pa
ram
ete
r e
va
lua
tio
n
Test
Simulation
1
𝐹,𝜔, 𝑙 𝑒𝑡𝑐.2
SKF small damage
propagation model
Verification tests
SKF
large damage
propagation
model
Spall growth
prognosis
Spall information
Influence factors
AI and physics for real life prognosticsD
ete
cti
on
alg
ori
thm
Pro
gn
osti
c
alg
ori
thm
© SKF Group
241/1250: SKF’s largest sealed SRB design – patented!
• Seal is almost 1.9m in diameter
• Seal weighs about 20 kg
• Possible to screw in outer-ring
• Possible to remove seal lip without discarding
entire seal
=
© SKF Group
Fee-based models in process industries
Customer’s need: Improve reliability
and reduce total cost of ownership
Customer’s problem: CAPEX cap
Solution: Function provided OPEX
Provide product every time it needs replaced
Monthly fee for providing a function
Equipment performance
Products
Cost
Time
© SKF Group 28 November 2018Slide 18
When one seal is not enough – the Three Barrier Solution
• 1st barrier: external housing seal
• 2nd barrier: housing grease
• 3rd barrier: integral bearing seal
© SKF Group
4-row CRBs face challenging conditions:
• Flooded housings => smearing
• Water in oil (5% to 25%) => surface wear and
severe corrosion
• Fretting corrosion causing bearing to jam
The result: Bearing runs 300-2000 hrs when it
could run 12000 hrs or more.
Providing a function: Steel- and aluminum production
Sealing improvement
Bearing solution
© SKF Group
Coated 4-row CRB for metal production: WISCO China
• August 2017: Start of operation
• November 2018: 6 400h and still running
Lab tests and simulations showed 4x life improvement with new design => prototype built and in field trial
FF
Water in oil
Voice of the customer:Very satisfied with the achieved running hours
Competitor running hours to failure:Competitor A: <2000h ring crack
Competitor B: <2000h
Competitor C: ~5000h
50%cost out
© SKF Group
Large air conditioning units: lubricating with refrigerant
Bearings, normally oil-lubricated
Rotor wheel to compress refrigerant
• Cooling capacity ~ 1 MW
• ~ 5-8 % savings on system
efficiency with SKF solution
• Weight > 10 Tons when running -
of which one ton refrigerant
© SKF Group 28 November, 2018Slide 24
Film thickness analogy: Oil vs Refrigerant
Refrigerant lubr. ~ 20 nm
Oil lubricated ~ 500 nm
© SKF Group
Bearing grade silicon nitride
(ceramic) rolling elements
Bearing grade super-tough
steel rings
Balls
Rollers
Speed
Lubrication -
Contamination
Weight
Insulation
+20% higher speed of rotation
> increased efficiency in machine tools
3 times longer grease life
Less sensitive to contamination
> longer mainentance intervalls
Lower weight > lower fuel consumption
in aero applications
Eliminated electrial damage on bearings
> reduced risk for failure and replacement
Hybrid bearings main advantage
Longer Service
Life
Higher System
Efficiency
Performance based approach
Innovation - “Drop in” solution
Why hybrid bearings?
Engineering polymer cage
© SKF Group
For the design engineer: New life calculation for Hybrid bearings
0
2000
4000
6000
8000
10000
12000
14000
16000
15 12 9 6 3
L10 [
Mre
v]
C/P
L10 hybrid
L10 steel
Not covered with standard ISO life calculation
2x life under worst possible conditions
Increasing load
© SKF Group
Value
innovation
Value
Cost
Everything you need, nothing you don’t
Design with value
in mind
Flexibility
Predictability
Serviceability
Remanufacturing
Mounting
Design with cost
in mind
Manufacturing
Purchasing
Cost-driver removal
© SKF Group
Kossan Glove manufacturing
• 12 months in operation, no issues
• Lower cost, longer life
• Engineering knowledge to optimize
dimensions, material, seal and grease
Food producers world wide
• Hygienic design to FDA standards – wash
it down at night
• No detergent ingress
• Low friction yet protective seal
Design for what matters, save cost on the rest
SKF Competitor
© SKF Group
Detect Solve Rebuild or Remanufacture
Gain insights and make customers better
Control process
• Hands-on realization of Industry 4.0. Bearings ideal for IoT
• SKF partners with Telecom to digitalize rotating equipment
• Bearings become Process Control instruments
• REP Technology leap: Control the process & prevent failures
• Scalable. Potential to make in “normal” SKF factory
SKF Fibre Optic SensingSensing load by light alone