This paper introduces predominance and characteristics of test technique of full scale components hinge moment, large scale model rudder hinge moment,full scale torpedo rudder hinge moment in 8m×6m low speed wind tunnel in recent years, and gives some representative test results.

The formula is applied to the calculations both for small scale model and large scale model. It is found that the drawdown calculated by means of conventional numerical method is underestimated by 2/3 to 3/4 of the actual value,and the revised drawdown obtained from the proposed method is approximately equal to the analytical solution.

The conclusions presented also apply to box type structures and the experimental techniques are applicable to large scale model tests of container ship, catamaran, engineering ship and ocean platform.

By static load testing of a large scale model of the panel points,stress distribution on the points are measured, which are then analyzed with finite element method.

(3) Based on large scale model tests on SSI system and using general-purpose finite element program MARC, some issues about modeling of soil-structure interaction system are discussed in this thesis.

This paper studied the dynamic response of the structure-box foundation-soil system through test and Finite Element(FE) analysis of 1/2 large scale model.

Large scale model joints exhibit tin pest but it appears that actual joints may be resistant due to the limited free solder surface available and the constraint of intermetallic compounds and components.

The stabilityproperties of the model are derived and the stacked-time algorithmperformances are checked for a large scale model with endogenous labour supplyand uncertain lifetime.

The problem we need to solve is a linear programming problem, so that a large scale model can be optimized without difficulty.

Studies of wall shear and mass transfer in a large scale model of neonatal high-frequency jet ventilation

The code is also used to simulate heat, water and salt flows in a large scale model (10's of km) of the Taupo Volcanic Zone, New Zealand.

Abstract By using the F.E.M. the strength of cargo hold structures with cantilever beams of dry cargo ships can be calculated. The main difficulties encountered in such direct calculation are how to establish a reasonable and reliable calculating model and how to set boundary condition properly. Simplifications and assumptions in the mathematical representations must be made in such a way that they do not appreciably affect the accuracy of analysis. A test on a large scale model of a cargo hold section...

Abstract By using the F.E.M. the strength of cargo hold structures with cantilever beams of dry cargo ships can be calculated. The main difficulties encountered in such direct calculation are how to establish a reasonable and reliable calculating model and how to set boundary condition properly. Simplifications and assumptions in the mathematical representations must be made in such a way that they do not appreciably affect the accuracy of analysis. A test on a large scale model of a cargo hold section for a 5000 dwt cargo ship was carried out and calculations made accordingly. The aims of the study were: a) To realize the behaviour of the cantilevers, web frames and stringers. b) To realize the effect of the number of cantilevers on the structure. c) To find out a correct method of setting the calculation model. The 6.75m×3.2m×1.8m model was made of steel. Concentrated loads were simultaneously or individually applied by hydraulic jacks on both ship sides and upper and lower decks for five loading conditions. The stresses on various structural components were measured and compared with that gained in the calculations using mechanical models of both three dimensional frame system and beam-plate system. The latter model was found to be the better. The results of calculation generally have a good agreement with test results. The calculation using the space frame system can give satisfactory results only when general stress distribution is required. This paper discusses also the effects of the number and the type of the cantilever structures, and properties of the inner forces.

This paper introduced the large wind tunnel in our inslitite. According to the similarity theory of two phase flow,we expounded the applying range in geography and the limit in open field of the experiments of a wind tunnel, Ranolds number must be increased under the situation without sand-bearing wind. Only when Ranolds number is above 106, a model with angular turns (such as the ceiling of a vehicle and tree branches of a shelterbelt) may not be. affected by the model size and the change of wind velocity,...

This paper introduced the large wind tunnel in our inslitite. According to the similarity theory of two phase flow,we expounded the applying range in geography and the limit in open field of the experiments of a wind tunnel, Ranolds number must be increased under the situation without sand-bearing wind. Only when Ranolds number is above 106, a model with angular turns (such as the ceiling of a vehicle and tree branches of a shelterbelt) may not be. affected by the model size and the change of wind velocity, and thus the experimental result can be applied to open field. If there is windborne sand, due to the limited scale of sand particles (sand particles of model being no smaller than 0.08 mm) , the distribution of erosion and deposition areas can be estimated by the stream field distribution of experiments, we made experiments of large scale model to reduce error caused by uncompleted similarity.This paper also dealt with the main experimental results after our wind tunnel had been built, we also studied the lifting off mechanism of sand particles by using 2000 pps high Speed photography. It indicates that impact is very important for thd up lifting of sand. For communications and telecommunications, the phenomenon of sand-driving wind and barriers for derivating wind downward in order to prevent windborne sand and snow drift have been studied. We have also proposed several protecting measures, which have gained good results.

A comprehensive study on a large-scale model of prestressed dual-cable system is introduced in presented paper. Statical stresses and deflections of the system in different load cases are measured. Dynamic properties. frequencies、mode shapes and damping characters for several lowest modes of vibration are investigated. Comparison of theoretical results with measurements gives satisfactory agreement.