Multi-degree-of-freedom aided ship model starting and braking device

Abstract

The invention discloses a multi-degree-of-freedom aided ship model starting and braking device and belongs to the ship and marine engineering experimental equipment technical field. The device comprises fixed structures, longitudinal adjustment structures, vertical adjustment structures and a truss structure; the fixed structures are installed on the deck of a test ship model; each vertical adjustment structure is integrally connected with one corresponding fixed structure; each vertical adjustment structure is correspondingly welded on the upper side and lower side of the corresponding fixedstructure; each longitudinal adjustment structure is installed on adjacent vertical adjustment structures at the same side of the deck; the longitudinal adjustment structures at two sides of the deckare provided with fixed trusses; a slideable truss is connected between the two fixed trusses; and various components are fixed through bolts. The multi-degree-of-freedom aided ship model starting andbraking device is of structural simplicity; and the relative positions of the components of the device can be flexibly adjusted. With the multi-degree-of-freedom aided ship model starting and brakingdevice adopted, multi-degree-of-freedom force supporting points can be provided for the starting and braking of ship models with different shapes; and damage to valuable test and measurement equipment caused by larger load generated during the starting and braking of the ship models can be avoided.

Description

technical field [0001] The invention belongs to the technical field of ship and marine engineering experimental equipment, and in particular relates to a multi-degree-of-freedom auxiliary ship model starting and braking device. Background technique [0002] During the hydrodynamic performance tests such as the resistance test and self-propulsion test of the ship model in the towing pool, the ship model is dragged by the trailer from a static state, and experiences acceleration, constant speed, deceleration and other states until it is stationary. During the acceleration and deceleration of the ship model, a large load will be generated. If no supporting device is provided, this load will directly act on the expensive test and measurement equipment such as the stress-strain force balance, airworthiness instrument and self-propulsion instrument. result in damage to the measuring equipment. [0003] Taking the KRISO Container Ship, referred to as KCS ship model with a scale ra...

AI Technical Summary

Problems solved by technology

But this kind of clamp can't clamp the ship model directly. At present, most of the methods are to put a wooden or steel truss on the tail of the ship model, and the clamp clamps the truss to fix the ship model. In this way To apply drag or pull to the model ship

However, the disadvantages of this approach are obvious. First, each ship model needs a corresponding truss, which cannot be reused. Second, the draft of the ship model is different, and the height of the deck is also different. The height of the truss required by different ship models is also different. Different, it is more cumbersome to install; 3. Once the rigid truss is fixed, the installation position of the measuring equipment may not match the position of the fixture, which will bring tedious test equipment adjustment process to the subsequent test operation, and the fault tolerance rate is low; 4. This operation When the ship model starts and brakes, the load is completely applied to the fixed points on both sides of the deck and the truss, which will easily cause fatigue and damage to the deck structure of the ship model, and the safety factor is low

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