Eloot, K.; Vantorre, M. (2000). Non-conventional captive manoeuvring tests. Unpublished manuscript. [S.n.]: [s.l.]. 20 pp.
Related to:
Eloot, K.; Vantorre, M. (2000). Non-conventional captive manoeuvring tests, in: HSVA's computerized planar motion carriage: international workshop on ship manoeuvrability, Hamburg, Germany, 10 & 11 October 2000. pp. 1-20, more
The introduction of computerised planar motion carriages (CPMC) offered many advantages to researchers making use of captive model testing for investigating ship manoeuvring. Compared to PMM systems of the first generation, a CPMC is restricted to neither small amplitude motions nor captive manoeuvres with harmonic character. Nevertheless it is still not clear in which way optimal use can be made of the possibilities of this experimental equipment in the determination of acceleration derivatives occurring in a ship's mathematical manoeuvring model, especially in shallow water conditions and low speed values. In order to overcome some disadvantages of conventional PMM sway testing, an alternative way of determining sway acceleration derivatives was introduced. A series of captive model tests has been executed using ship models with varying block coefficients - among which a model of the Esso Osaka - to examine the influence of test parameters on the acceleration derivatives of lateral force and yawing moment during pure sway and yaw motions.
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