Details
| Original language | English |
|---|---|
| Pages (from-to) | 109-114 |
| Number of pages | 6 |
| Journal | Procedia CIRP |
| Volume | 4 |
| Publication status | Published - 20 Nov 2012 |
| Event | 3rd CIRP Conference on Process Machine Interactions, PMI 2012 - Nagoya, Japan Duration: 29 Oct 2012 → 30 Oct 2012 |
Abstract
In the re-contouring process of aircraft engine components, the unknown geometry and inhomogeneous material properties of the workpiece are major challenges. For this reason a new repair process chain is supposed which consists of noncontact geometry identification, process simulation and NC-path planning, followed by a force controlled milling process. A new milling machine prototype is employed to ensure an effective force control loop. By use of a magnetic guided spindle slide, higher dynamics and precise tracking are enabled. Since variation of the process forces result in variable control plant characteristics, an indirect adaptive controller has been designed. Consequently, models of actuator and process are presented and the estimation of the present parameters by a recursive least square algorithm is outlined. Once the parameters are known, the control polynomials are calculated on the basis of a pole placement control approach. First experimental results of a force controlled milling process are put forward.
Keywords
- Adaptive control, Force control, Magnetic guide, Milling
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Procedia CIRP, Vol. 4, 20.11.2012, p. 109-114.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Adaptive Cutting Force Control on a Milling Machine with Hybrid Axis Configuration
AU - Denkena, B.
AU - Flöter, F.
N1 - Funding information: The authors would like to thank the German Research Foundation (DFG) for funding the associated research project SFB871 (Collaborative Research Centre 871).
PY - 2012/11/20
Y1 - 2012/11/20
N2 - In the re-contouring process of aircraft engine components, the unknown geometry and inhomogeneous material properties of the workpiece are major challenges. For this reason a new repair process chain is supposed which consists of noncontact geometry identification, process simulation and NC-path planning, followed by a force controlled milling process. A new milling machine prototype is employed to ensure an effective force control loop. By use of a magnetic guided spindle slide, higher dynamics and precise tracking are enabled. Since variation of the process forces result in variable control plant characteristics, an indirect adaptive controller has been designed. Consequently, models of actuator and process are presented and the estimation of the present parameters by a recursive least square algorithm is outlined. Once the parameters are known, the control polynomials are calculated on the basis of a pole placement control approach. First experimental results of a force controlled milling process are put forward.
AB - In the re-contouring process of aircraft engine components, the unknown geometry and inhomogeneous material properties of the workpiece are major challenges. For this reason a new repair process chain is supposed which consists of noncontact geometry identification, process simulation and NC-path planning, followed by a force controlled milling process. A new milling machine prototype is employed to ensure an effective force control loop. By use of a magnetic guided spindle slide, higher dynamics and precise tracking are enabled. Since variation of the process forces result in variable control plant characteristics, an indirect adaptive controller has been designed. Consequently, models of actuator and process are presented and the estimation of the present parameters by a recursive least square algorithm is outlined. Once the parameters are known, the control polynomials are calculated on the basis of a pole placement control approach. First experimental results of a force controlled milling process are put forward.
KW - Adaptive control
KW - Force control
KW - Magnetic guide
KW - Milling
UR - http://www.scopus.com/inward/record.url?scp=84883858440&partnerID=8YFLogxK
U2 - 10.1016/j.procir.2012.10.020
DO - 10.1016/j.procir.2012.10.020
M3 - Conference article
AN - SCOPUS:84883858440
VL - 4
SP - 109
EP - 114
JO - Procedia CIRP
JF - Procedia CIRP
SN - 2212-8271
T2 - 3rd CIRP Conference on Process Machine Interactions, PMI 2012
Y2 - 29 October 2012 through 30 October 2012
ER -