Mass absorber and detection method thereof

A mass shock absorber and mass body technology, which is applied in the direction of non-rotational vibration suppression, can solve the problems of affecting the magnetic field distribution of magnets, no constrained degrees of freedom, poor stability, etc., and achieve the effect of improving the vibration reduction effect

Active Publication Date: 2012-11-14
WEICHAI POWER CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0005] This active mass damper is a flexible connection between the base and the mass body, and does not constrain the degrees of freedom in other directions, so the vibration damping effect will be weakened;
[0006] In addition, the core needs to be connected to an alternating current, and the DC power supply used in the car requires an inverter and other equipment to supply the alternating curr...

Method used

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  • Mass absorber and detection method thereof
  • Mass absorber and detection method thereof
  • Mass absorber and detection method thereof

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Embodiment Construction

[0036] In order to make the above objects, features and advantages of the present invention more comprehensible, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] The present invention provides a mass shock absorber installed between the power assembly 206 and the vehicle frame 207, see figure 2 ,include:

[0038] Mass damper cavity 201, the mass damper cavity 201 has at least two parallel cavity walls 201.A and 201.B, wherein at least two parallel cavity walls 201.A and 201.B can moving in a direction perpendicular to said parallel cavity walls;

[0039] a mass body 202, the mass body 202 is placed in the mass shock absorber cavity 201, and the mass body 202 can move in a direction perpendicular to the moving parallel cavity walls 201.A and 201.B;

[0040] There are at least two springs, the spring 203 and the spring 204 are installed on opposite sid...

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PUM

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Abstract

The invention discloses a mass absorber and a detection method thereof, which realize the purpose of simply and safely attenuating the vibration and noise of a power assembly system. The mass absorber is directly arranged between a power assembly and a frame, a mass body is connected with a mass absorber cavity through a spring and a damper in the mass absorber cavity, the vibration of the power assembly system is attenuated by using the vibration of the mass body and the action of the damper, the mass absorber cavity can restrain the motion freedom except the motion freedom in the vertical direction, the vibration damping effect is greatly improved, and a feasible and thorough solution is provided for the vibration resistance and the durability of the traditional power assembly. The invention also provides a detection method of the mass absorber. A complete solution is provided for the detection of the mass absorber through calculation and simulation on properties of the power assembly.

Description

technical field [0001] The invention relates to the technical field of powertrain, in particular to a mass shock absorber and a detection method thereof. Background technique [0002] The powertrain is one of the main excitation sources of the automobile, and the vibration and noise generated by it are generally transmitted to the interior of the vehicle in two ways: one way is to attenuate the transmission to the frame through the powertrain mount, and then through the vehicle The frame is transmitted to the body, and through the resonance of the cavity in the car, the vibration and noise that the driver and passengers can perceive; another way is that the noise is directly transmitted to the car through the air. [0003] In order to reduce vibration and noise, according to the analysis of these two transmission paths, corresponding vibration reduction and noise reduction schemes can be adopted, that is, the optimization of vehicle structure design and the sealing or sound ...

Claims

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Application Information

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IPC IPC(8): F16F15/02F16F15/04
Inventor 盛云杜志良李乐生黄鑫
Owner WEICHAI POWER CO LTD
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