Product name
AMD for vertical vibration
model number
- AMDV-50sl (Vibration mass 50 kg type)
- AMDV-50sl (Vibration mass 50 kg type)
- AMDV-50sl (Vibration mass 50 kg type)
This device absorbs and suppresses vertical vibrations of an object by sensing vertical vibrations of the object with an attached acceleration sensor and tuning a vibration mass (weight) to the vibrations. It is mainly used to reduce vertical environmental vibrations such as walking vibrations and mechanical vibrations on the floor of a building. AMD for horizontal vibrationthis way (direction close to the speaker or towards the speaker)
Product Overview
forte
- Compared to TMD (tuned mass damper), a large effect can be obtained with a small vibration mass.
- It is more compact (smaller in flat area) than TMD, allowing for greater flexibility in installation space.
- It can be used for a wide range of vibration sources, such as walking vibration and machine vibration in factories.
- Because of active control, it is also possible to control for vibration with multiple peak frequencies.
- Two types of driving parts (actuators) are used: linear motor type and ball screw type.
- Can be installed after building construction (anchor fixation).
structure
elements
It consists of an actuator, vibration mass, coil spring, frame, control panel, and acceleration sensor.
principle
Vibration of the vibration control target (floor, etc.) is monitored by acceleration sensors, control calculations are performed in real time to reduce the vibration, and the actuator drives the vibration mass.
The program is also tuned to match the characteristics of the measured floor and other items.
(technical) specification
| model number | Movable mass [kg] | actuator Rated thrust [N] | Equipment size [mm] | Mass [kg] | Frequency range [Hz] |
| AMDV-50sl | 50 | 250 | Approx. 500 x 480 x 850H | Approx. 100 | 3～30 |
| AMDV-600sl | 600 | 3000 | Approx. 1280 x 265 x 600H | Approx. 800 | 3～30 |
| AMDV-1000sl | 1000 | 500 | Approx. 800 x 900 x 550H | Approx. 1200 | 2.5～30 |
AMDV-50sl (Vibration mass 50 kg type)
AMDV-50sl (Vibration mass 50 kg type)
Separate main unit and control panel
body (of a machine)
control panel
AMDV-50sl (Vibration mass 50 kg type)
Separate main unit and control panel
body (of a machine)
control panel
Example of Construction
Example of installation at a certain office (AMDV-50sl)
Measured results of AMDV-50sl installation
Time history waveform during heel excitation
Evaluation of occupant performance during one-person synchronized walking acupuncture vibration (2004)
(16.2 m x 11.2 m span, S-structure office building at a certain location in Tokyo)
Case Studies
showroom
The Active Mass Damper (AMDV-50sl), a vibration control device (AMD) that uses electric power to control vibration, is on display in the showroom in the basement of the Tokyo Office, so visitors can experience its vibration reduction effect.
If you would like to schedule a tour, please contact us using the contact form linked below. A representative will contact you shortly.
A representative will contact you shortly.
Related Pages
AMD vs TMD In-depth Comparison
This report compares AMD (Active-Mass-Damper) and TMD (Tuned-Mass-Damper), which are commonly used for vibration control of building floors, in terms of features, cost, and maintainability.
Introduction of related useful contents
You can download and watch it after registering as a premium member (free of charge).Please register here.
Already registered?My PageYou can download and watch the video from
Downloadable Materials
Introduction to AMD Series
This page introduces the features and installation examples of AMDs, which solve various vibration problems with power in a space-saving manner. We summarize the key points of AMD, which can deal with a wide range of unpleasant vibrations such as walking vibration, equipment-machine vibration, and vertical vibration at live performances, etc.
⇒Let's look at some of the materials
Introduction to Horizontal AMD
Features, benefits, and specifications of horizontal AMDs, which are compact in size, reduce unpleasant horizontal sway, and can be installed after measures & while in existing buildings.
⇒Let's look at some of the materials
AMD Questions Resolved! Frequently Asked Questions Q&A -Floor Shaking Countermeasures
Frequently asked questions about TMD are summarized in a Q&A format. Please use it as a reference for product selection and countermeasures.
⇒Let's look at some of the materials
Vibration control for existing buildings "after the fact
Increasingly, vibration problems are occurring later due to layout changes, changes in use, and new installation of equipment and machinery. However, the usual vibration control measures would require large-scale construction work. This section introduces the features and installation examples of Yacmo's vibration control system, which enables "after-the-fact" vibration control measures for existing buildings.
⇒Let's look at some of the materials
Countermeasure Points and Examples of Improvements for Vibration Problems Caused by Production Equipment Machinery
Production equipment and machinery have large excitation forces, and vibration problems often occur with new installations, layout changes, and line expansions. This section provides easy-to-understand explanations of what vibration countermeasures are available for production equipment and machinery, points to keep in mind when implementing countermeasures, and examples of actual improvements.
⇒Let's look at some of the materials
Points to consider in advance of floor sway countermeasures and examples of countermeasures
In many cases, vibration caused by walking and fitness, traffic, and production equipment and machinery becomes a problem after building construction is completed and requires countermeasures. This document describes floor sway and vibration control measures, and explains the points to consider in advance and the flow of countermeasures against floor sway. In addition, examples of actual floor shaking diagnosis and improvement effects using the AMD vibration control system are also introduced.
⇒Let's look at some of the materials
Past Webinars on Demand
Would you like to diagnose & improve that floor shaking problem with Yacmo's AMD?
The causes of floor sway and the basics of effective vibration control as a countermeasure are explained, and several examples of improvements made by AMD are presented.
Simple Selection Method for Wind Vibration Damping Devices (AMD, TMD)
Among the vibration control devices widely known as wind and microvibration countermeasures for habitability of building structures, this section explains how to determine simple specifications for passive-type TMDs and active-type AMDs.
Learning from Real World Examples! Case Study of Improvement of Road Traffic Vibration Problem in a Detached House
Floor vibration countermeasures caused by road traffic vibration will be explained in an easy-to-understand manner using actual data.
[New Product] Compact size AMDs that can be used after the fact are introduced.
We will introduce our new compact-sized horizontal AMDs that can be used as post-construction measures for new products to address wind, traffic, and other vibration problems related to habitability that have occurred after the completion of construction of mid- and high-rise buildings.