NIPPON GOMU KYOKAISHI
Print ISSN : 0029-022X
Volume 89, Issue 8
Displaying 1-8 of 8 articles from this issue
Special Issue for General Reviews “Approach to Vibration Isolation, Vibration Damping, Noise Insulation Rubber Material”
Introductory Remarks
General Reviews
  • [in Japanese], [in Japanese]
    2016 Volume 89 Issue 8 Pages 234
    Published: 2016
    Released on J-STAGE: October 05, 2016
    JOURNAL FREE ACCESS
    Download PDF (234K)
  • Shuichi AKASAKA
    2016 Volume 89 Issue 8 Pages 235-240
    Published: 2016
    Released on J-STAGE: October 05, 2016
    JOURNAL FREE ACCESS

    Materials for vibration and noise control plays important roles in the realization of comfortable environment. The function of those materials are classified into vibration damping, vibration insulation, sound absorption and sound insulation. In order to effectively reduce the noise and sound level, approprieate materials must be arranged in products. This article explains the mechanism for vibration and noise control and fundamental knowledge for the design of each type of materials. In addition, this article introduces new materials for vibration and noise control; piezoelectric materials which can dissipate the vibration and noise energy at a certain frequency controlled by the inductance of the shunted electric circuits, and nanofiber non-woven sheets which exert high sound absorption performance without increasing the thickness.

    Download PDF (1165K)
  • Yoshihiro SATOH
    2016 Volume 89 Issue 8 Pages 241-248
    Published: 2016
    Released on J-STAGE: October 05, 2016
    JOURNAL FREE ACCESS

    Vibration isolation and vibration damping are explained using the dynamic models, and it is clearly shown that they are based on essentially different principles. In the result, indicator to each of the design of isolation materials and damping materials is described from a dynamic viewpoint.

    Download PDF (845K)
  • Fumito TAKEUCHI
    2016 Volume 89 Issue 8 Pages 249-253
    Published: 2016
    Released on J-STAGE: October 05, 2016
    JOURNAL FREE ACCESS

    This article gives an overview of the fundamentals of polymeric materials for vibration damping. Based on vibration transmissibility of single degree of freedom systems, the differences between vibration isolation and vibration damping are described. Mechanism and materials design of the vibration damping materials are outlined with viscoelastic properties and those structures. As an example of controlling loss factor in viscoelastic properties, the formulations of EPDM with carbon black are described.

    Download PDF (1268K)
  • Hiroto IDO
    2016 Volume 89 Issue 8 Pages 254-258
    Published: 2016
    Released on J-STAGE: October 05, 2016
    JOURNAL FREE ACCESS

    This article shows some applications of the numerical simulation for noise and vibration analysis in the industrial design field. In these applications, we often need an adequate constitutive modeling of the rubber material to describe the behavior of the rubber parts accurately. This article introduces an activity of the subcommittee meeting for non-linear material modeling, organized by Japan Association for Non-linear CAE (NPO), which help us to develop/study the modeling of the rubber material in FEM simulations.

    Download PDF (1691K)
  • Norihito KIMURA
    2016 Volume 89 Issue 8 Pages 259-262
    Published: 2016
    Released on J-STAGE: October 05, 2016
    JOURNAL FREE ACCESS

    On current automobile industries, it is important to react "environment", "safety", "globalization".
    Especially on environment, each countries set up strict environment regulations. So, many manufacturers try to develop Eco-Friendly Cars such as Low-Emission Vehicle (LEV) which have downsizing engines or idling stop device, Hybrid Electric Vehicle (HEV), Electric Vehicle (EV), Fuel Cell Vehicle (FCV), and so on. For above backgrounds, Sumitomo-riko contribute to the development of automobile industries by developing anti-vibration rubber for vehicle which meets needs, and putting them on the market.
    In this section, I tell about the recent development trend of materials for anti-vibration rubber.

    Download PDF (637K)
Technical Note
feedback
Top