A mechanical multi-purpose ship model restoring force measuring device and method

Abstract

The invention relates to a mechanical multi-purpose measuring device for restoring force of a ship model, which comprises a multi-purpose measuring rod for restoring force, an auxiliary measuring frame and a measurement counterweight module. The measuring device and the vertical displacement measuring device are used to measure the restoring force or moment in the direction of roll, pitch and heave of the ship model; the auxiliary measuring frame is a set of multi-purpose rod frame system, which is used to carry the measurement counterweight and connect the multi-purpose restoration The force measuring rod and the ship model are fixedly connected; the measuring counterweight module is a counterweight used for measurement and is fixedly installed on the auxiliary measuring frame. The invention has scientific and reasonable setting, simple mechanical structure, convenient manufacture, low cost, simple use and high precision, and can be used to measure the linear restoring force or moment of the ship model in the direction of rolling, pitching and heaving in still water, and is suitable for wide range.

Description

technical field [0001] The invention belongs to the technical field of ship engineering pool tests, and relates to a mechanical multipurpose ship model restoring force measuring device, in particular to a mechanical multipurpose ship model restoring force measuring device and method. Background technique [0002] At present, model testing is a commonly used method to predict the hydrodynamic performance of ships and marine structures. However, for the measurement tests of certain ship hydrodynamic performance parameters, there are still imperfect and irregular measurement techniques and measurement equipment. These factors will greatly affect the complexity of the test operation, and even interfere with the accuracy of the measurement results. precision. [0003] Ship resilience is one of the basic hydrodynamic properties of ships and an important parameter of ship stability. Its magnitude depends on factors such as ship displacement, relative positions of center of gravity...

AI Technical Summary

Problems solved by technology

The invention realizes the measurement of the lateral force and lateral restoring moment of the ship model in complex environmental engineering and test environments, but the device can only measure the lateral force and lateral restoring moment, and cannot measure the longitudinal restoring moment and vertical restoring force of the ship; In addition, the main force sensor of the device is a six-component force balance, and the cost of the balance is relatively high, which will greatly increase the cost of the device

Images