Quantcast
Jump to content
  • Welcome to Auto Parts Forum

    Whether you are a veteran automotive parts guru or just someone looking for some quick auto parts advice, register today and start a new topic in our forum. Registration is free and you can even sign up with social network platforms such as Facebook, Twitter, Google, and LinkedIn. 

     

Recommended Posts

The greater the damping force of the shock absorber, the faster the vibration is reduced, but the effect of the parallel elastic elements can not be fully exerted. At the same time, the excessive damping force may also lead to damage to the connecting parts and frame of the shock absorber. In order to solve this contradiction between elastic elements and shock absorbers, the following requirements are put forward for shock absorbers.

(1) In the compression stroke of the suspension, the damping force of the shock absorber should be small so as to make full use of the elasticity of the elastic elements to mitigate the impact.

(2) In the suspension stretching stroke (the distance between the bridge and the frame) the damping force of the shock absorber should be large in order to reduce the vibration rapidly.

(3) When the relative speed between the axle (or wheel) and the frame is too high, the shock absorber should be able to automatically increase the area of the liquid flow passage, so that the damping force is always within a certain limit to avoid excessive impact load.

Cylinder shock absorber is widely used in automobile suspension system, and it can reduce vibration in compression and stretching stroke. It is called bidirectional action shock absorber, and a new type of shock absorber is adopted, which includes air-filled shock absorber and resistance adjustable shock absorber.

P8R9aQ.jpg

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Topics

    • By Max A-Profi
      Bad shock absorbers – dangerous driving. The vehicle is due to their failure poorly manageable, the wheels have little traction with the road surface. This also leads to a malfunction of the brake system. The main task, which is carried out shock absorber in car, is to control and hold the wheel while driving. This avoids losing control of the vehicle.
      Shock absorbers are also designed to damp vibrations that occur when driving on an uneven surface, off-road and when the speed changes. Springs do not always cope with the load. Consequently, the safety of the vehicle and passengers directly depends on the shock absorber. Therefore, it is necessary to pay special attention to the selection of these parts of the chassis of the car.
      The structure and types of shock absorbers
      Shock absorbers consist of a cylinder with a piston inside and a valve mechanism. The combination of such elements in this system allows you to damp the vibrations in a timely manner and prevent the car from swaying violently.
      Varieties by the principle of action
      The most common are hydraulic and gas shock absorbers:
      Hydraulic shock absorbers put out the vibrations of the elastic elements of the suspension using oil that flows from one tank to another through a valve system. Gas shock absorbers they also use liquid, but it is preliminarily “squeezed” by a small volume of gas. Varieties in structure
      Two-pipe . Single-tube with gas pressure. Two-pipe with gas pressure. Single-tube have advantages, because the liquid in this device does not overheat. They are also practical: the housing can be installed up and down.
      Two-pipe ones consist of two cavities, one has a piston with valves, and the second is necessary to partially fill it with oil and air. If they are absent or too few in design, then the shock absorber stops working or is compressed without resistance. In the event of such malfunctions, it is necessary to contact a car service or service station that has 
      link hidden, please login to view. This device will restore the performance of parts. Diagnostics of malfunctions of shock absorbers and the main causes of their failure
      Checking the fault is quite simple:
      If during driving the car does not shake and extraneous noise is not heard, then the shock absorbers function normally. If in motion there are problems with braking, smooth running, fitting into a turn, and also the car cannot gain a certain speed, then it is necessary to pay attention to the condition of the shock absorbers. Such problems can lead to an accident caused by an increase in wheel slip vibration. Most often, the main cause of the breakdown may be leakage of fluid through a damaged seal. This can happen in such cases:
      Wear of the sealing material due to friction. Sudden change in temperature. Dirt and dust are trapped in the shock absorber. Gas or air are trapped in the shock absorber. To avoid breakdowns, it is necessary to seek the help of professionals in a timely manner, who will make a diagnosis and restore the parts if necessary. This can help 
      link hidden, please login to view. They allow you to pumping gas, add fluid, and also control the pressure process. link hidden, please login to view Equipment for repairing shock absorbers is a special device that will allow specialists to restore the main part of the suspension quickly and efficiently. In total
      The oil and gas parts of the undercarriage are important elements in the design of the car. They are responsible for its performance, safety during movement. Today, A-PROFI Company provides an opportunity to protect yourself and your car by manufacturing 
      link hidden, please login to view  that meets all the requirements of modern automotive industry. You can study or buy equipment for the restoration of shock absorbers on link hidden, please login to view.
    • By RockAuto
      Purchase four qualifying KYB products and receive a pre-paid MasterCard for up to $75

      link hidden, please login to view
    • By RockAuto
      Purchase four qualifying KYB products and receive a pre-paid MasterCard for up to $75!

      link hidden, please login to view
    • By RockAuto
      Receive $25 on a Visa gift card for KYB Shocks and Struts purchased and installed on trucks.

      link hidden, please login to view
  • Our picks

    • National Pronto Association, Automotive Distribution Network Announce Merger
      The leadership of National Pronto Association and Automotive Distribution Network announced today the merger of the two organizations. As of Jan. 1, 2021, the newly formed organization will be known as the Pronto Automotive Distribution Network.

      Headquartered in Grapevine, Texas, Pronto Automotive Distribution Network will be led by Robert Roos as president and David Prater as executive vice president. The combined organization will represent more than 250 members in North America with an estimated revenue of approximately $5 billion annually. Members will continue to market under the Pronto, Parts Plus and Auto Pride names.

      In addition, Pronto Automotive Distribution Network, together with Federated Auto Parts, will comprise the Automotive Parts Services Group (The Group). 
      • 0 replies
    • Advance Auto Parts To Sponsor NASCAR Weekly Series In Multiyear Agreement
      DAYTONA BEACH, Fla. & RALEIGH, N.C.--(BUSINESS WIRE)--As NASCAR Weekly Series sanctioned events begin to return at select tracks across North America, NASCAR and Advance Auto Parts (NYSE: AAP), a leading automotive aftermarket parts provider, today announced a multiyear official partnership, designating Advance as the series entitlement sponsor. As part of the agreement, Advance also becomes the “Official Auto Parts Retailer of NASCAR.”

      "It's great to have Advance join us in welcoming the return of NASCAR-sanctioned grassroots racing," said Ben Kennedy, vice president, racing development, NASCAR. "Advance’s commitment to our Weekly Series will develop some of the brightest NASCAR talent across North America. Advance has a long history in racing, and we’re thrilled to see its expanded presence from the grassroots all the way through our national series.”
      • 0 replies
    • Advance Auto Parts Announces Purchase of the DieHard Brand from Transformco
      Advance Auto Parts, Inc. (NYSE: AAP) has acquired the DieHard brand from Transform Holdco LLC (“Transformco”), for $200 million utilizing cash on hand.

      “We are excited to acquire global ownership of an iconic American brand. DieHard will help differentiate Advance, drive increased DIY customer traffic and build a unique value proposition for our Professional customers and Independent Carquest partners. DieHard has the highest brand awareness and regard of any automotive battery brand in North America and will enable Advance to build a leadership position within the critical battery category,” said Tom Greco, president and CEO, Advance Auto Parts. “DieHard stands for durability and reliability and we will strengthen and leverage the brand in other battery categories, such as marine and recreational vehicles. We also see opportunities to extend DieHard in other automotive categories. We remain committed to providing our customers with high-quality products and excellent service. The addition of DieHard to our industry leading assortment of national brands, OE parts and owned brands will enable us to differentiate Advance and drive significant long-term shareholder value.”
      • 0 replies
    • AmazonBasics 6-Pack High Mileage Motor Oil - Synthetic Blend
      AmazonBasics High Mileage Motor Oil - Synthetic Blend

      AmazonBasics high-mileage synthetic-blend motor oil offers an enhanced level of protection for engines over 75,000 miles. Its synthetic blend combines conventional oil with synthetic for cost efficiency with some of the benefits of a full synthetic. An important part of routine maintenance, the motor oil works well for anything from topping off levels to complete oil changes. Whether it’s a beloved older vehicle or one with an uncertain maintenance history, help protect its engine with AmazonBasics high-mileage, synthetic-blend motor oil.
      • 3 replies
    • OEM vs. Aftermarket Parts for Your Car: How to Choose
      When selecting parts for a car repair, it pays to know the differences between original and aftermarket parts. Whenever possible, get estimates for both.

      Choosing between original and aftermarket car parts — and even used parts of either type — is all about squaring your priorities with your budget.

      You’ll have different options depending on the part and the shop. And the best choice will depend on whether you’re trying to keep repairs cheap, restore your car’s appearance after a wreck or soup up your ride.

      Original equipment manufacturer (OEM) parts match those that came with your car, and are of the same quality as its original parts. They’re also the most expensive.
        • Like
      • 2 replies
  • Similar Content

    • By 袁春凤 (Tiffany)
      What is an automobile shock absorber?
      In order to accelerate the vibration attenuation of the frame and body and improve the ride comfort of the vehicle, vibration absorbers are installed in the suspension system of most automobiles. Both the shock absorber and the elastic element are installed in parallel.
      Hydraulic shock absorbers are widely used in vehicle suspension systems. The principle of the hydraulic shock absorber is that the oil in the shock absorber shell flows repeatedly from one cavity to another through some narrow cavities when the piston moves in the cylinder cylinder when the driver and the bridge move reciprocating relative to each other. At this time, the friction between the hole wall and the oil and the internal friction of the liquid molecule form a damping force to the vibration, so that the vibration energy of the body and the frame is converted into heat energy, which is absorbed by the oil and shock absorber shell, and then emitted into the air. The damping force of the shock absorber increases or decreases with the relative velocity of the frame and the axle, and is related to the viscosity of the oil. Therefore, it is required that the viscosity of the oil used in the shock absorber should be as little as possible affected by the temperature change, and has the properties of anti-vaporization, anti-oxidation and non-corrosion to various metal and non-metal parts.

    • By 袁春凤 (Tiffany)
      Shock absorber
      In order to accelerate the vibration attenuation of the frame and body and improve the ride comfort of the vehicle, vibration absorbers are installed in the suspension system of most automobiles. Both the shock absorber and the elastic element are installed in parallel.
      Hydraulic shock absorbers are widely used in vehicle suspension systems. The principle of the hydraulic shock absorber is that the oil in the shock absorber shell flows repeatedly from one cavity to another through some narrow cavities when the piston moves in the cylinder cylinder when the driver and the bridge move reciprocating relative to each other. At this point, the friction between the hole wall and the oil and the friction between the liquid molecules form a damping force to the vibration, so that the vibration energy of the body and the frame can be converted into heat energy, which is absorbed by the oil and shock absorber shell, and then dispersed into the air. The damping force of the shock absorber increases or decreases with the relative velocity of the frame and the axle, and is related to the viscosity of the oil. Therefore, the viscosity of the oil used in the shock absorber is required to be as little as possible affected by temperature changes: and has the properties of anti-vaporization, anti-oxidation and non-corrosive to various metal and non-metal parts.
    • By 袁春凤 (Tiffany)
      Basic knowledge of shock absorbing rubber products
      1. Static stiffness: refers to the ratio of the change of pressure (or tensile force) to the change of displacement in a given displacement range. The static stiffness must be measured within a certain displacement range. The static stiffness values measured in different displacement ranges are different, but some families require the change curve measured in the whole displacement range.
      2. Dynamic stiffness: It refers to the ratio of the change of pressure (or tensile force) to the change of displacement of damping rubber in a certain displacement range and a certain frequency.
      3. dynamic magnification: the ratio of the dynamic stiffness to the static stiffness measured by the damping rubber in a certain range of displacement.
      4. Loss coefficient: There is a phase difference between the deformation of rubber and the stress of rubber in the course of the force acting on damping rubber, and the stress of rubber is generally ahead of the phase angle of the deformation of rubber.
      5. Torsional stiffness: refers to the ratio of torsional moment to torsional angle of damping rubber within a certain range of torsional angle.
      6. Durability: It refers to the number of times of vibration when the rubber is in good condition after n times of reciprocating vibration under certain preloading load, amplitude and vibration frequency in a certain direction.Thanks for the help and support of Chongqing Feilong Jiangli Auto Parts technical department.
       
    • By Erica Zhu Feilong Jiangli
      In order to accelerate the vibration attenuation of the frame and body and improve the ride comfort of the vehicle, vibration absorbers are installed in the suspension system of most automobiles. Both the shock absorber and the elastic element are installed in parallel.
      Hydraulic shock absorbers are widely used in vehicle suspension systems. The principle of the hydraulic shock absorber is that the oil in the shock absorber shell flows repeatedly from one cavity to another through some narrow cavities when the piston moves in the cylinder cylinder when the driver and the bridge move reciprocating relative to each other. At this time, the friction between the hole wall and the oil and the internal friction of the liquid molecule form a damping force to the vibration, so that the vibration energy of the body and the frame is converted into heat energy, which is absorbed by the oil and shock absorber shell, and then emitted into the air. The damping force of the shock absorber increases or decreases with the relative velocity of the frame and the axle, and is related to the viscosity of the oil. Therefore, it is required that the viscosity of the oil used in the shock absorber should be as little as possible affected by the temperature change, and has the properties of anti-vaporization, anti-oxidation and non-corrosion to various metal and non-metal parts.
      link hidden, please login to view
×
×
  • Create New...

Copyright © 2020 AutoPartsForum Powered by Invision Community