Ship shaft power wireless test and performance assessment device

A shaft power and performance technology, applied in the field of shaft power wireless detection and performance evaluation devices based on strain gauges, can solve the problems of not being suitable for dynamic evaluation of the shaft state, loss of wireless transmission signals, and poor versatility, etc., to achieve anti- Strong interference ability, small signal loss, and improved safety

Inactive Publication Date: 2018-06-19
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing ship shaft power test device has serious wireless transmission signal loss, which is not suitable for dynamically evaluating the state of the shaft system and inferring the matching of the propeller of the ship. It only tests the shaft power, and the performance is relatively simple and the versatility is not strong.

Method used

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  • Ship shaft power wireless test and performance assessment device
  • Ship shaft power wireless test and performance assessment device

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with accompanying drawing.

[0016] figure 1 The reference number 1 is the strain gauge axial power detection module including packaged strain gauges, rotational speed sensor, and signal conditioning module. Pin 3 of the strain gauge is the power inlet, pin 4 is grounded, pins 1 and 2 are connected to the IN1+ and IN1- input interfaces of the signal conditioning circuit, pins 5 and 6 of the speed sensor are connected to the IN2+ and IN2- input of the signal conditioning circuit The interface is connected. The output terminals O1+, O1-, O2+, O2- of the signal conditioning circuit are respectively connected to the input interfaces IN1+, IN1-, IN2+, IN2- of the wireless transmitting module.

[0017] figure 1 The point-to-point data transmission module described in No. 2 includes a signal transmitting and signal receiving module, two input and output. VCC is the power inlet, and GND is grounded. The I...

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Abstract

The present invention discloses a ship shaft power wireless test and performance assessment device which is based on the point-to-point and the strain gauges, is non-contact and high-performance and can adapt to the complex test conditions. According to the present invention, the torque and the power of a ship shaft are detected by the four strain gauges packaged in a gasket, by a point-to-point transmission mode, the online dynamic test of the ship shaft power and the performance assessment are realized, and the matching status of a ship, an engine and a propeller is deduced. Compared with aconventional ship shaft power test device, the ship shaft power wireless test and performance assessment device not only can test the shaft power, but also can dynamically assess the state of a shaftsystem and deduce the matching condition of the ship, the engine and the propeller, is stronger in versatility and wider in application range, and enables the detection accuracy and stability to be improved, the transmission effectiveness to be enhanced, the functions of a ship shaft power detection device to be increased, the application range to be expanded and the ship navigation safety and economy to be improved effectively.

Description

technical field [0001] The invention belongs to the technical field of shaft power detection and performance evaluation of marine diesel engines, in particular to a wireless shaft power detection and performance evaluation device based on strain gauges. Background technique [0002] Ship shaft power can effectively represent the ship's dynamic performance. During the ship's navigation, the working conditions are complex. If the power of the main engine is not fully utilized or overloaded, the service life of the main engine will be shortened and the economy of the ship's power system will be reduced. In addition, the ship's unsteady-state operation such as emergency braking, quick start, quick conversion of reverse and front car, sudden acceleration or deceleration, etc., causes the shafting of the ship's power plant to be subjected to excessive instantaneous torque, resulting in damage to the shafting and ship failure. . Therefore, the effective measurement of shaft power,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/24
CPCG01L3/24
Inventor 彭章明龚友平陈慧鹏陈昌陈国金苏少辉
Owner HANGZHOU DIANZI UNIV
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