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Variable intrinsic value dynamic vibration absorber and variable intrinsic value anti-vibration device

A technology of dynamic vibration absorber and anti-vibration device, which is applied in the direction of spring/shock absorber, non-rotational vibration suppression, mechanical equipment, etc. It can solve the problems such as difficult to manage the characteristics of parts, and achieve easy management, high durability and easy characteristic management Effect

Active Publication Date: 2019-10-18
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] (c) Difficulty in managing component characteristics due to custom deviations in mass production of MRE

Method used

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  • Variable intrinsic value dynamic vibration absorber and variable intrinsic value anti-vibration device
  • Variable intrinsic value dynamic vibration absorber and variable intrinsic value anti-vibration device
  • Variable intrinsic value dynamic vibration absorber and variable intrinsic value anti-vibration device

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Experimental program
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Effect test

Embodiment Construction

[0083] Below, refer to Figure 1A ~ Figure 7 , Embodiments of the variable intrinsic value dynamic vibration absorber and the variable intrinsic value vibration isolator of the present invention will be described.

[0084] First, if Figure 1A As shown, the intrinsic value variable dynamic vibration absorber (hereinafter, referred to as the first dynamic vibration absorber 10A) of the first embodiment has: a base 14 attached to a vibration damping target member 12 (indicated by a two-dot chain line); On the base 14, the casing 16 whose upper surface is blocked; the first elastic member 18A whose elastic properties change according to the magnetic field; the second elastic member 18B whose material is different from the first elastic member 18A; at least through the first elastic member 18A and the second elastic member 18B, the mass member 20 is elastically connected to the vibration damping target member 12; and the electromagnet 22 (excitation coil) that applies a magnetic f...

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PUM

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Abstract

To solve a problem, for example, in which holding a movable mass becomes difficult because the spring characteristics of a rubber constituting a basis are set low in order to set the characteristic value at a low value. In a first dynamic vibration absorber including a movable mass that is coupled to a vibration damping target member via an MRE as a first elastic member having elastic characteristics variable with a magnetic field, and being capable of varying a vibration characteristic value of the movable mass by controlling the magnetic field, the dynamic vibration absorber has a second elastic member different from the MRE, and the vibration damping target member and the movable mass are elastically-coupled to each other via the second elastic member.

Description

technical field [0001] The present invention relates to a variable eigenvalue dynamic vibration absorber and a variable eigenvalue vibration isolator for suppressing vibration of a vibrating body. Background technique [0002] Conventionally, in order to reduce the vibration of a machine, a dynamic vibration absorber (a variable intrinsic value type dynamic vibration absorber) has been widely used. A dynamic damper is a component composed of a spring and a mass whose natural frequency is the same as the frequency of the problematic vibration. It vibrates in an opposite phase to the problematic vibration and dampens it by the inertial force of the mass. Small vibrations that become problematic. [0003] Here, when the natural frequency is f, the natural value is ω, the spring constant is K, and the mass is M, the following relationship exists. [0004] [0005] The commonly used dynamic shock absorber vibrates in antiphase relative to the input vibration at the natural f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/03F16F1/36
Inventor 井上敏郎
Owner HONDA MOTOR CO LTD