A system and method for suppressing vibration of marine diesel engine
A marine diesel engine and diesel engine technology, applied in vibration suppression adjustment, mechanical equipment, spring/shock absorber, etc., can solve the problem of very high real-time requirements for state monitors and actuators, difficult vibration control, manufacturing, operation and maintenance of marine diesel engines High maintenance costs and other issues
Active Publication Date: 2017-12-05
WEICHAI POWER CO LTD
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Problems solved by technology
[0003] After the structure of the rubber pad suspension vibration isolation passive control device is determined, the vibration isolation characteristics are also determined, which cannot adapt to sudden changes in the interference frequency
Active control technology requires additional energy. The control system includes state monitors, control systems, and actuators. The control system requires a reasonable and stable control algorithm, and the real-time requirements for state monitors and actuators are very high. Manufacturing, operation and maintenance costs are very high, and are greatly restricted in practical application in ships
Active control technology is difficult to apply to the vibration control of actual marine diesel engines due to high energy consumption and complex algorithm of the control system
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[0025] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0026] figure 1 It is a structural schematic diagram of a system for suppressing vibration of a marine diesel engine provided by the present invention. Such as figure 1 As shown, the system for suppressing the vibration of a marine diesel engine provided by the present invention includes: a first sensor 10 installed on the diesel engine 11 for measuring the first acceleration of the diesel engine; a second sensor 12 installed on the hull 13, For measuring the second acceleration of the hull; the damper 14 is installed between the diesel engine 11 and the hull 13; the control device 15 is connected with the first sensor 10, the second sensor 12 and the damper 1...
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The invention discloses a system and a method for suppressing vibrations of a marine diesel engine, wherein the system comprises a first sensor that is mounted on the diesel engine and used for measuring a first acceleration of the diesel engine, a second sensor that is mounted on a ship body and used for measuring a second acceleration of the ship body, a damper mounted between the diesel engine and the ship body, and a control device that connected with the first sensor, the second sensor and the damper and used for controlling, according to the first acceleration and the second acceleration, a damping force generated by the damper to do negative work to the diesel engine to consume the vibration energy of the diesel engine, thereby inhibiting the vibrations of the diesel engine. The system for suppressing the vibrations of the marine diesel engine realizes semi-active control on the vibrations of the diesel engine by means of the damping force-controllable damper without an extra actuator, and therefore, the energy consumption cost is low; besides, the system only needs to control the on and off states of the damper according to the vibration conditions of the diesel engine, and the control method thus is simple and easy to realize.
Description
technical field [0001] The invention relates to a marine diesel engine, in particular to a system and method for suppressing vibration of a marine diesel engine. Background technique [0002] With the rapid growth of global economic integration, the ocean transportation industry has been developing continuously and rapidly. The ocean transportation industry has become an important factor in promoting global economic integration. The development of the marine transportation industry is inseparable from the development of ships, and diesel engines are the main power source in the ship field. Excessive vibration of the marine diesel engine will reduce the reliability and service life of the diesel engine itself, and even cause the vibration isolation pad to tear. The vibration transmitted to the hull and the noise generated by the vibration seriously affect the comfort of the user. As the diesel engine develops towards high speed and high power, its vibration will be further ...
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IPC IPC(8): F16F15/023
CPCF16F15/023
Inventor 张振京张晓黄国龙
Owner WEICHAI POWER CO LTD