CN102879078A - Vibration and self noise monitoring system of fuel-powered unmanned submersible vehicle - Google Patents

Abstract

The invention discloses a vibration and self noise monitoring system of a fuel-powered unmanned submersible vehicle. The system is mainly composed of a hydrophone, a triaxial accelerometer, a signal conditioning board, a power module, a communication antenna, a wireless communication module, multichannel data acquisition and recording equipment, a hydrophone adaptive mounting seat, a cabin penetration cable and the like. Signals sensed and received by the hydrophone and the accelerometer are transmitted to the signal conditioning board through the cabin penetration cable, are inputted to the wireless communication module after processed and are sent to the multichannel data acquisition and recording equipment by transmission of the wireless communication module. By the aid of the system, vibration and self noise of the unmanned submersible vehicle during underwater navigation can be monitored and recorded in real time.

Description

Vibration and the self noise monitoring system of the unmanned device of diving of fuels and energy

Technical field

Invention relates to a kind of for monitoring the system of unmanned device self duty of diving under water, is specifically related to the unmanned device of diving of a kind of fuels and energy and vibrates and the self noise monitoring system.

Background technology

The unmanned device of diving that adopts fuels and energy to advance is an important development direction of submarine navigation device, is similar to the conventional submarine under the snorkel operational configuration during its work, and internal combustion engine leans out the air-breathing work that the snorkel of the water surface provides by the top.Because the unmanned latent device under water in some special application field has corresponding requirement to the Stealth Fighter of self, and to consider the disturbing effect that self radiated noise causes the acoustic equipment that carries, vibration and self noise when this just need to dive the device underwater navigation to nobody record monitoring, and improving with optimization for the unmanned device general structure design of diving provides reference material.In addition, screw propeller " cavitation " phenomenon is known for everyone gradually to the harm of propulsion system, and because propeller blade when reaching cavitation critical rotary speed, therefore its noise sound level can significantly increase, and can utilize noise-monitoring equipment the unmanned device screw propeller duty of diving is monitored and to analyze and research.

The noise level of underwater hiding-machine is the important indicator of weighing its hidden performance, for the underwater hiding-machine that adopts fuels and energy to advance, its self noise it has been generally acknowledged that mainly and is comprised of following noise source: the machinery such as the engine of underwater hiding-machine, gearing produces vibration in motion process, be delivered to the device housing of diving by base, cause hull vibration and in the aqueous medium radiated noise sound wave; The noise of cavitation noise, screw propeller rotation and the blade generation of vibration of screw propeller in aqueous medium; The hydrodynamic noise that also has flow noise and flow action to cause that in dive device cavity, plate and reinforcement resonance produces.Therefore monitor self noise and the Vibration Condition of underwater hiding-machine, can search the device Main Noise Sources of diving, provide reference data for improving Stealth Fighter by vibration and noise reducing design, avoid the underwater sound equipment that self carries is caused interference, the duty in the time of can also navigating by water to the device of diving is simultaneously monitored.

Being applied under water, unmanned vibration and self noise monitoring equipment of diving device is different from the conventional equipment that adopts on other manned submersible, the superimpose data recording unit is installed in the device instrument room of diving, be not easy to manually carry out direct control and intervention, also be not easy to the measured data of Real Time Observation; And the installing space of the unmanned device inside of diving is limited, and data recording equipment volume and weight are subject to corresponding restriction, and inconvenient system upgrade improves the expansion with memory capacity.

Summary of the invention

In view of this, the invention provides vibration and the self noise monitoring system of the unmanned device of diving of a kind of fuels and energy, vibration and self noise in the time of can diving the device underwater navigation to nobody in real time carry out monitoring record, in time carry out manual intervention in order to abnormal conditions occur in system works.

The unmanned device vibration of diving of fuels and energy of the present invention comprises wireless communication module, signal regulating panel, nautical receiving set, the adaptive mount pad of nautical receiving set, power module, crosses cabin cable, three axis accelerometer and multi-channel data acquisition registering instrument with the self noise monitoring system.Wherein wireless communication module comprises communication antenna, underwater emission machine and communication control processor.Described communication control processor and multi-channel data acquisition registering instrument all are positioned on the bank.

Its annexation is: described communication antenna is installed in the unmanned device snorkel top of diving under water, and the underwater emission machine is installed in the inside surface of the unmanned device housing of diving under water, and the underwater emission machine is communicated by letter with communication control processor on the bank by communication antenna.Nautical receiving set is installed under water on the unmanned outside surface of device near the afterbody housing of screw propeller of diving by the adaptive mount pad of nautical receiving set.Three axis accelerometer, signal regulating panel and power module are installed in the inside surface of the unmanned device housing of diving under water.Nautical receiving set passed through the cabin cable and was connected with signal regulating panel.Three axis accelerometer is connected with signal regulating panel by cable, and the underwater emission machine is connected with signal regulating panel by cable.Communication control processor is connected with the multi-channel data acquisition registering instrument.Power module is connected with the underwater emission machine with signal regulating panel respectively.

The power system of the described unmanned device of diving is signal regulating panel and the power supply of underwater emission machine by power module, power module is made of intermediate frequency generator, rectifying pressurizer and power-supply filter, intermediate frequency generator in the power module links to each other with unmanned thruster kinematic train of diving device, and the electric energy that the power-conversion that utilizes the unmanned device internal combustion engine of diving to provide produces is signal conditioning circuit plate and the power supply of underwater emission machine.

Described nautical receiving set is used for the self noise signal of the unmanned device of diving of monitoring, and changes the self noise signal that receives into electric signal and export to the signal conditioning circuit plate.

Described three axis accelerometer is used for the unmanned vibration signal of device on its each direction of principal axis of diving of monitoring, and three groups of vibration signals that will record change electric signal into and export to the signal conditioning circuit plate.

Described signal conditioning circuit plate carries out respectively impedance matching and amplification, anti-aliasing filter processing to self noise signal and the three groups of vibration signals that receive.

Self noise signal and three groups of vibration signals after described underwater emission machine is processed the signal conditioning circuit plate are sampled simultaneously, and will send to communication control processor by communication antenna after the signal modulation that collect.

Self noise signal and three groups of vibration signals after the modulation of underwater emission machine that described communication control processor received communication antenna sends, and with after the signal demodulation that receives, export to the multi-channel data acquisition registering instrument.

Beneficial effect:

Part is arranged more than the water surface when (1) considering the snorkel work of the unmanned device of diving of fuels and energy, above the present invention is installed in communication antenna, utilize Wireless Telecom Equipment data transfer recording unit ashore.

(2) the present invention is directed to the unmanned device design feature of diving that fuels and energy advances, vibration and self noise signal when adopting the latent device underwater navigation that wireless communication module degree of will speed up meter, nautical receiving set collect are transferred to data recording equipment on the bank, the inner shared installing space of device reduces to dive, be able to the Real Time Observation Monitoring Data, improve the extensibility of monitoring system data recording capacity, and reach simultaneously debugging convenient, use simple effect.

Description of drawings

Fig. 1 is this system at the fuels and energy mounting structure schematic diagram of the unmanned device of diving under water;

Fig. 2 is vibration and self noise monitoring system block diagram.

Wherein: 1-communication antenna, 2-wireless communication module, 3-signal regulating panel, 4-nautical receiving set, the adaptive mount pad of 5-nautical receiving set, 6-power module, 7-cross cabin cable, 8-three axis accelerometer, 9-multi-channel data acquisition registering instrument

Embodiment

Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.

The present embodiment provides a kind of vibration and self noise monitoring system that is applied to the unmanned device of diving of fuels and energy, adopts vibration and self noise data that this system can the unmanned device of diving of Real-Time Monitoring fuels and energy, and debugging is convenient, use simply.

The structure of this system comprises wireless communication module,signal regulating panel 3, nautical receivingset 4, theadaptive mount pad 5 of nautical receiving set,power module 6, crossescabin cable 7 and threeaxis accelerometer 8 and multi-channel data acquisition registering instrument 9 as shown in Figure 1.Wireless communication module comprisescommunication antenna 1,underwater emission machine 2 and communication control processor.Whereinunderwater emission machine 2 is positioned at the unmanned device housing of diving, and communication control processor is positioned on the bank, realizes communication bycommunication antenna 1 betweenunderwater emission machine 2 and the communication control processor.

Part is arranged more than the water surface when considering the snorkel work of the unmanned device of diving of fuels and energy, with snorkel as the communication antenna mounting platform,communication antenna 1 is installed in the snorkel top, and then utilizes Wireless Telecom Equipment data transfer recording unit ashore.

The concrete annexation of this system is:communication antenna 1 is installed in the unmanned device snorkel top of diving under water, nautical receivingset 4 is installed under water by theadaptive mount pad 5 of nautical receiving set, and nobody dives device near on the afterbody housing of screw propeller, theadaptive mount pad 5 of nautical receiving set plays fixation to nautical receivingset 1 on the one hand, the vibration damper of damping material is housed between nautical receivingset 4 and latent device housing on the other hand, play the effect of vibration isolation, the impact of device hull vibration on nautical receivingset 4 reduces to dive.Threeaxis accelerometer 8,signal regulating panel 3 andunderwater emission machine 2 are installed under water on the inside surface of the unmanned device housing of diving.Nautical receivingset 4 passed throughcabin cable 7 and was connected withsignal regulating panel 3, and the output signal of nautical receivingset 4 is input to signal regulatingpanel 3 by crossing cabin cable 7.Threeaxis accelerometer 8 is connected withsignal regulating panel 3 by cable, and threeaxis accelerometer 8 is exported to respectively signal regulatingpanel 3 with the vibration signal that records on its each direction of principal axis.Signal regulating panel 3 is connected withunderwater emission machine 2, andsignal regulating panel 3 carries out the vibration signal that receives to export tounderwater emission machine 2 after the rough handling.The communication control processor that is positioned on the bank is connected with multi-channel data acquisition registering instrument 9.The power system of the unmanned device of diving issignal regulating panel 3 and 2 power supplies of underwater emission machine bypower module 6.

Power module 6 is made of intermediate frequency generator, rectifying pressurizer and power-supply filter etc. in the present embodiment, it links to each other with unmanned thruster kinematic train of diving device, and the power-conversion that utilizes the device internal combustion engine of diving to provide produces electric energy and is the underwater portion power supply of monitoring system.Circuit on thesignal regulating panel 3 is the follower that is made of discrete elements such as field effect transistor, or the circuit structures such as the charge amplifier of integrated operational amplifier formation, voltage amplifier.Wireless communication module is Universal wireless data sending and receiving devices, as with become System Co., Ltd's (TEL8/16/32 series small multi-channel digital communication system of Integrated System Ltd.Multi-channel data acquisition registering instrument 9 is the General Data Acquisition recording unit, such as LTT Sensorcorder series sensor registering instrument.

The course of work of this system is:

101: during the fuels and energy engine operation of the unmanned device of diving, the intermediate frequency generator of monitoring system power module inside is started working, produce alternating current, after overcommutation, voltage stabilizing are processed, produce D.C. regulated power supply again and offer signalconditioning circuit plate 3 andunderwater emission machine 2, this two parts circuit can be worked.

102: nautical receivingset 4 changes the noise signal that receives into electric signal exports to signalconditioning circuit plate 3, and 3 pairs of noise signals that receive of signal conditioning circuit plate carry out impedance matching and amplification, anti-aliasing filter are processed.

Equally, the unmanned vibration signal of diving device that threeaxis accelerometer 8 just records on its each direction of principal axis changes electric signal into exports to signalconditioning circuit plate 3, and 3 pairs of vibration signals that receive of signal conditioning circuit plate carry out impedance matching and amplification, anti-aliasing filter processing.

103: 2 pairs of multi channel signals (3 groups of vibration signals and 1 group of noise signal) after signalconditioning circuit plate 3 is processed of underwater emission machine are sampled simultaneously, and will send to communication control processor bycommunication antenna 1 after the signal modulation that collect.

104: communication control processor with the signal demodulation that receives after, input to multi-channel data acquisition registering instrument 9,9 pairs of data that receive of multi-channel data acquisition registering instrument are close to real-time observation and analysis.

In sum, above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (2)

1. vibration and the self noise monitoring system of the unmanned device of diving of fuels and energy, it is characterized in that, this system comprises wireless communication module, signal regulating panel (3), nautical receiving set (4), the adaptive mount pad of nautical receiving set (5), power module (6), crosses cabin cable (7), three axis accelerometer (8) and multi-channel data acquisition registering instrument (9); Wherein wireless communication module comprises communication antenna (1), underwater emission machine (2) and communication control processor; Described communication control processor and multi-channel data acquisition registering instrument (9) all are positioned on the bank;

Its annexation is: described communication antenna (1) is installed in the unmanned device snorkel top of diving under water, underwater emission machine (2) is installed in the inside surface of the unmanned device housing of diving under water, and underwater emission machine (2) is communicated by letter with communication control processor on the bank by communication antenna (1); Nautical receiving set (4) is installed under water on the unmanned outside surface of device near the afterbody housing of screw propeller of diving by the adaptive mount pad of nautical receiving set (5); Three axis accelerometer (8), signal regulating panel (3) and power module (6) are installed in the inside surface of the unmanned device housing of diving under water; Nautical receiving set (4) passed through cabin cable (7) and was connected with signal regulating panel (3); Three axis accelerometer (8) is connected with signal regulating panel (3) by cable, and underwater emission machine (2) is connected with signal regulating panel (3) by cable; Communication control processor is connected with multi-channel data acquisition registering instrument (9); Power module (6) is connected 2 with signal regulating panel (3) with the underwater emission machine respectively) be connected;

The power system of the described unmanned device of diving is signal regulating panel (3) and underwater emission machine (2) power supply by power module (6);

Described nautical receiving set (4) is used for the self noise signal of the unmanned device of diving of monitoring, and changes the self noise signal that receives into electric signal and export to signal conditioning circuit plate (3);

Described three axis accelerometer (8) is used for the unmanned vibration signal of device on its each direction of principal axis of diving of monitoring, and three groups of vibration signals that will record change electric signal into and export to signal conditioning circuit plate (3);

Described signal conditioning circuit plate (3) carries out respectively impedance matching and amplification, anti-aliasing filter processing to self noise signal and the three groups of vibration signals that receive;

Self noise signal and three groups of vibration signals after described underwater emission machine (2) is processed signal conditioning circuit plate (3) are sampled simultaneously, and will send to communication control processor by communication antenna (1) after the signal modulation that collect;

Self noise signal and three groups of vibration signals after underwater emission machine (2) modulation that described communication control processor received communication antenna (1) sends, and with after the signal demodulation that receives, export to multi-channel data acquisition registering instrument (9).

2. vibration and the self noise monitoring system of the unmanned device of diving of fuels and energy as claimed in claim 1, it is characterized in that, described power module (6) is made of intermediate frequency generator, rectifying pressurizer and power-supply filter, intermediate frequency generator in the power module (6) links to each other with unmanned thruster kinematic train of diving device, and the electric energy that the power-conversion that utilizes the unmanned device internal combustion engine of diving to provide produces is signal conditioning circuit plate (3) and underwater emission machine (2) power supply.

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