TY - JOUR
T1 - Multi-criteria decision analysis for benchmarking human-free lifting solutions in the offshore wind energy environment
AU - Richmond, Mark
AU - Balaam, Toby
AU - Causon, Paul
AU - Cevasco, Debora
AU - Leimeister, Mareike
AU - Kolios, Athanasios
AU - Brennan, Feargal
PY - 2018/5/7
Y1 - 2018/5/7
N2 - With single components weighing up to hundreds of tonnes and lifted to heights of approximately 100 m, offshore wind turbines can pose risks to personnel, assets, and the environment during installation and maintenance interventions. Guidelines and standards for health and safety in lifting operations exist; however, having people directly beneath the load is still common practice in offshore wind turbine installations. Concepts for human-free offshore lifting operations in the categories of guidance and control, connections, and assembly are studied in this work. This paper documents the process of applying Multi-Criteria Decision Analysis (MCDA), using experts' opinions for the importance of defined criteria obtained by conducting an industry survey, to benchmark the suitability of the concepts at two stages. Stage one streamlined possible options and stage two ranked the remaining suite of options after further development. The survey results showed that criteria such as 'reduction of risk', 'handling improvement' and 'reliability of operation' were most important. The most viable options, weighted by industry opinion, to remove personnel from areas of high risk are: Boom Lock and tag lines, a camera system with mechanical guidance, and automated bolt installation/fastening for seafastening. The decision analysis framework developed can be applied to similar problems to inform choices subject to multiple criteria.
AB - With single components weighing up to hundreds of tonnes and lifted to heights of approximately 100 m, offshore wind turbines can pose risks to personnel, assets, and the environment during installation and maintenance interventions. Guidelines and standards for health and safety in lifting operations exist; however, having people directly beneath the load is still common practice in offshore wind turbine installations. Concepts for human-free offshore lifting operations in the categories of guidance and control, connections, and assembly are studied in this work. This paper documents the process of applying Multi-Criteria Decision Analysis (MCDA), using experts' opinions for the importance of defined criteria obtained by conducting an industry survey, to benchmark the suitability of the concepts at two stages. Stage one streamlined possible options and stage two ranked the remaining suite of options after further development. The survey results showed that criteria such as 'reduction of risk', 'handling improvement' and 'reliability of operation' were most important. The most viable options, weighted by industry opinion, to remove personnel from areas of high risk are: Boom Lock and tag lines, a camera system with mechanical guidance, and automated bolt installation/fastening for seafastening. The decision analysis framework developed can be applied to similar problems to inform choices subject to multiple criteria.
KW - health and safety
KW - multi-criteria decision making
KW - offshore wind turbines
KW - technique for order of preference by similarity to ideal solution (TOPSIS)
KW - offshore lifting operations
UR - http://www.scopus.com/inward/record.url?scp=85047070866&partnerID=8YFLogxK
UR - http://www.mdpi.com/journal/energies
U2 - 10.3390/en11051175
DO - 10.3390/en11051175
M3 - Article
AN - SCOPUS:85047070866
SN - 1996-1073
VL - 11
JO - Energies
JF - Energies
IS - 5
M1 - 1175
ER -