Overview
Principles of Construction
Viscous damper is a type of energy dissipation and shock absorption device that uses an oil cylinder structure filled with damping medium to drive the flow of internal medium through the reciprocating motion of the piston, generating damping effect and converting kinetic energy into thermal energy.
Viscous dampers are mainly suitable for bridges and high-rise buildings in earthquake and typhoon prone areas, which can enhance the anti vibration performance of structures and prevent damage caused by rare earthquakes and strong winds. It can not only reduce the vibration response of structures under external excitations such as earthquakes and wind loads, but also convert kinetic energy into thermal energy, further reducing structural damage. In addition, viscous dampers have stable dynamic characteristics and strong energy dissipation capacity, and are easy to construct. They can be arranged in various shapes and connected in multiple forms.
Product advantagesThe product advantages of viscous dampers mainly lie in excellent shock absorption performance, wide applicability, stable dynamic characteristics, economic efficiency, and easy maintenance.
Viscous dampers have excellent shock absorption performance. It can quickly respond to external forces such as earthquakes or wind loads, consume energy through the viscous flow of internal fluids, and effectively reduce the vibration response of the structure. This characteristic makes viscous dampers a secret weapon for building shock absorption, which can greatly reduce the damage caused by earthquakes or strong winds to buildings and protect the safety of internal personnel and equipment.
Viscous dampers have a wide range of applicability. It can be applied to various types of building structures, including high-rise buildings, industrial plants, etc., and can be customized according to different structural characteristics and needs. This flexibility enables viscous dampers to function in various complex engineering scenarios, meeting the seismic requirements of different structural forms.
Viscous dampers have stable dynamic characteristics. Its damping force displacement hysteresis curve is very full, close to a rectangle, which makes it have a very stable energy dissipation capacity and strong dynamic characteristics. This stability ensures that the viscous damper can continuously provide effective shock absorption during long-term use.
Viscous dampers also have the characteristics of economic efficiency. The use of viscous dampers can reduce the number of reinforcement used in shear walls, beams, and columns, as well as the cross-sectional dimensions of components, thereby saving costs. Meanwhile, due to its relatively simple maintenance, only regular and simple inspections are required, reducing maintenance costs and minimizing the impact on the normal use of the building.
Specification
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Product Name
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Viscous Fluid Damper(VFD) |
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The working principle of a viscous damper is to absorb and dissipate vibration energy through viscous force. Specifically, a viscous damper is a hydraulic cylinder structure that uses a filled damping medium, mainly composed of a piston, cylinder body, end cap, damping medium, and connecting body. When the structure is subjected to external forces (such as earthquakes), the piston moves back and forth in the cylinder, driving the flow of internal damping medium. When the damping medium passes through the damping holes or gaps on the piston, it will generate throttling damping force, which is proportional to the movement speed of the piston. The faster the speed, the greater the resistance. In this way, viscous dampers can convert earthquake input energy into thermal energy and dissipate it, effectively controlling the displacement and acceleration of the structure, thereby protecting the structure from damage |
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Product Structure
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Viscous dampers are mainly composed of key components such as cylinder (or housing), piston, damping hole (or damping structure), damping medium (such as oil), and connecting parts.
The cylinder barrel or shell is usually made of sturdy materials such as steel, used to accommodate internal damping media and components such as pistons. The piston is a moving component in the damper, which moves back and forth in the cylinder and generates damping force through interaction with the damping medium. The design of damping holes or structures is to regulate and control the magnitude of damping force. When the piston moves, the damping medium generates a throttling effect through these holes or structures, thereby consuming energy. Damping medium, such as oil, is the key to achieving damping effect in viscous dampers. It converts mechanical energy into thermal energy through friction with the piston and changes in flow state for dissipation. In addition, viscous dampers also include components such as front and rear connectors, which are used to connect the damper to building structures or other mechanical systems. |
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Applications
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The application scenarios of viscous dampers are extensive, covering multiple engineering and construction fields, mainly including high-rise buildings, large-span bridges, lifeline engineering, and industrial buildings.
1. High rise buildings: In high-rise buildings, viscous dampers can effectively reduce wind loads and earthquake induced vibrations, improving structural stability and safety. It's like installing a 'safety airbag' on high-rise buildings, which can protect them from serious damage during earthquakes or strong winds.
2. Long span bridges: For pedestrian bridges, elevated bridges and other large-span bridges, viscous dampers can significantly reduce vibrations caused by wind loads and vehicle travel, enhancing the durability and driving safety of the bridge.
3. Lifeline engineering: The application of viscous dampers in key buildings such as hospitals and schools can ensure their relative stability during natural disasters such as earthquakes, reducing casualties and property damage. These buildings often need to continue to be used after disasters, and viscous dampers can reduce their acceleration response, ensuring the safety of equipment and personnel inside the structure.
4. Industrial buildings: In industrial plants, viscous dampers can reduce vibrations caused by the operation of mechanical equipment, protecting production equipment and product quality. In addition, it can also be applied to seismic resistance of pipelines and valves in industries such as nuclear power, thermal power, petrochemicals, and steel. |
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Product parameter adjustment
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Adjust parameters according to different application scenarios and customer requirements |
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Program Design
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Design separately according to different usage projects |
Company Profile
Hengshui Siwo New Material Technology Development Co., Ltd. is a professional manufacturer of seismic isolation and reduction, integrating research and development, production, and sales. It mainly involves the fields of construction and bridges, covering building steel structure bearings, bridge bearings, expansion devices, seismic ball steel bearings, seismic isolation rubber bearings, basin type bearings, yield type dampers, displacement type dampers, TMD tuned mass dampers, buckling restrained supports, etc.
The company currently has 78 fixed employees, including 18 technical personnel and 12 personnel with senior and intermediate professional titles. The company has established long-term cooperative relationships with universities such as Tsinghua University, Tongji University, Harbin Institute of Technology, Hunan University, Chongqing University, as well as design institutes such as Beijing Institute of Architecture, East China Institute, China Construction Southwest Institute, and China Aviation Institute. It is committed to scientific and technological innovation, product innovation, and keeping up with the pace of university industry research cooperation. At the same time, it is committed to structural design, engineering calculations, finite element analysis, and product trial testing cooperation, and is committed to new product research and development, making products more refined, optimized, and strong.
The company covers an area of over 270 acres (180000 square meters), including workshops for mechanical processing, rubber products, product assembly, and other processes. There are more than 50 sets of production equipment, including CNC lathes, CNC milling machines, CNC drilling machines, CNC cutting equipment, vulcanizing machines, internal mixers, and open mixers, to meet the processing needs of various products.
The company's testing center has excellent equipment and complete testing facilities. Equipped with trained and qualified professional quality inspectors, the products are inspected throughout the entire process to ensure that unqualified raw materials do not enter the factory, unqualified semi-finished products do not transfer to another process, and unqualified products do not leave the factory.
Driven by research and development, we strive to refine, optimize, and strengthen our products. Our consistent policy is to provide high-quality products and services that bring economic benefits to our enterprises while creating greater social benefits.
Why Choose Us
Advanced production equipment
Adequate inventory
praise from customers
FAQ
Q1: Are you trading company or manufacturer?
A:We are manufacturer.
Q2: What's your MOQ?
A:Normally it's 500 meters for one size and one color.
Q3: What's your output?
A:500,000 meters per week
Q4: How long is your delivery time?
A:Generally it is 5-10 days if the goods are in stock. And for mass production it takes 15-20 days.
Q5: May I have samples ? is it free or extra?
A:Yes, we are happy to explore new product with our customers. If the sample need to be customized, please contact us. For the regular item, we supply 3-5meters samples for free. And customer pay the sample freight only.
Q6: Whether to support customized services?
A:We can customize according to drawings or samples,Production mold independent research and development manufacturing, independent transformation of production equipment.
Q7: What is your terms of delivery?
A:EXW.FOB.CFR.CIF,DDU.etc.
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