Quantcast
Jump to content

general heavy-duty 728x90


general heavy-duty 468x60


general heavy-duty 250x250

  • 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. 

     

Fatigue life prediction of rubber bushing in vehicle system


Recommended Posts

Fatigue life prediction of rubber bushing in vehicle system

1.Response analysis of rubber bushing under random excitation The Monte Carlo method is used to simulate the random excitation spectrum.

2. The fatigue life calculation of rubber bushing under random load can calculate the maximum strain energy density of rubber bushing under different excitation by using the response characteristics of rubber bushing under engine and road excitation obtained previously. The fatigue life of rubber bushing can be calculated under different load conditions. The maximum strain energy density U = 0.5134Nmm2 and the fatigue life N = 771371 were predicted under the excitation of engine speed n = 3000r/min and class B pavement, while U = 0.6893Nmm2, N, = 146774 under the excitation of engine speed n = 3000/min and class D pavement.(Thanks for the help and support of Chongqing Feilong Jiangli Auto Parts technical department.)

3. The test verification of the front sub-frame module is expensive because of the fatigue test of the whole vehicle system. Now the former sub-frame module is the research object, and the calculation results are compared with the test results. The front sub-frame is installed in accordance with its layout in the vehicle, and the six points connected with the body on the sub-frame are restrained. Sinusoidal excitation is carried out at the midpoint of the rear beam, and the maximum frequency which can be reached under the condition of satisfying the amplitude of the force is taken as the test frequency. The amplitude of force is 2.45.2kN. Fatigue failure criteria of rubber bushing: 2mm crack (equivalent to 20% of tensile coefficient).

Link to comment
Share on other sites


general heavy-duty 728x90


general heavy-duty 468x60


general heavy-duty 250x250

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.

 Share

  • Similar Content

  • Similar Topics

    • By Counterman
      In spite of the skyrocketing cost of fuel, I’m still looking forward to a couple of summer road trips. While there’s nothing we can do about the prices at the pump, keeping our vehicles properly maintained can help those gallons go further.
      Getting ready for a long trip is the perfect excuse (not that you really need one) for your customers to check off a number of maintenance items that can help make their time behind the wheel more enjoyable. It also can make it a little less expensive!
      Many people wait until the last moment to do a “pre-trip inspection.” How many times have you had a customer tell you that they need a laundry list of items “immediately” because they’re planning on leaving for a long trip “tomorrow?”
      Sometimes these requests are easy to fulfill, especially if they’re simple maintenance items. Other times, the customer really should have addressed the issue long before now! Either way, we can help in a number of ways to get them on their way safely and efficiently.
      While the traditional “tune-up” is fast becoming obsolete, one of the essential items from this service is still a common sale.
      Changing the engine air filter is a quick and easy way to ensure proper airflow into the engine, and that filter also is the first line of defense against dirt and other contaminants. A clogged, dirty or damaged filter also can expose the MAF sensor to contaminants that alter its signal to the PCM, which can lead to a rich condition, wasting fuel. Examination of the filter also can indicate if there are worn piston rings or a fault in the PCV system. While examining the air intake, also look for cracks or gaps in the tube between the airbox and the throttle body, which can allow unmetered air into the engine, skewing sensor readings and altering fuel efficiency.
      Changing the cabin air filter not only will make the trip more comfortable, but it also can potentially lessen the strain on the HVAC system. Turning up the A/C to compensate for a clogged cabin filter can increase the load on the belt-driven compressor and therefore the engine. While you’re at it, have a look at the belt(s) too. Worn, glazed or slipping belts can cause noise, friction and even cooling-system or charging-system issues – which may leave you on the roadside rather than at your destination.
      Battery condition and state-of-charge should be tested periodically, and a pre-trip inspection is a great time to offer this service to your customers. No-start conditions are inconvenient at any time, but can cause much more anxiety when you’re miles away from familiar territory or service providers.
      Breakdowns become more inconvenient and time-consuming if you’re travelling to your destination on a tight schedule, or if you’ve drawn the “late-night” driving shift. If you do break down after dark, having functioning lights (especially your four-way flashers) makes you more visible to passing motorists, as well as emergency service providers like police or roadside assistance.
      Lighting and visibility checks also should include topping off the washer solvent, making sure your washer nozzles and pump are functioning correctly and changing wiper blades as needed, including the rear blade (if equipped).
      Fluids, filters, belts, wipers and electrical items all are tangible products, but one of the most important road-trip essentials is actually invisible … AIR! Properly inflated tires can have positive effects on fuel mileage, handling, braking and even passenger ride quality. Most of the vehicles on the road today have TPMS sensors to keep tabs on the tires, but it’s not a bad idea to get out the old-fashioned tire gauge now and then to double-check their calibration. On most vehicles, the spare tire is not TPMS-equipped, and should be checked manually for proper inflation.
      If a vehicle is not equipped with a spare, verify that the on-board compressor or emergency fix-a flat is accounted for!
      Speaking of inflation, the cost of the old “penny test” for tread depth has gone up to 25 cents. The old rule of thumb was that if you placed a penny into your tire tread, the top of Lincoln’s head should NOT be visible on a good tire. The distance from the edge of a penny to the top of Abe’s head equates to a tread depth of 2/32 of an inch, which is the DOT minimum before recommended replacement.
      Many tire manufacturers now recommend the use of a quarter for this “test.” The top of George’s head is 4/32 from the edge of a quarter, which gives consumers a little more warning before needing to discard their current tires. I still prefer to use an actual tread-depth gauge, but pocket change still works in a pinch. Wherever the destination this summer, your customers can save money, save fuel and save time by spending a little on preventative maintenance before they pack the car and pull out of the driveway!
      The post
      link hidden, please login to view appeared first on link hidden, please login to view.
      link hidden, please login to view
    • By Counterman
      I swore for years that I would never buy a brand-new car. I didn’t even want to make a car payment. You see, I’ve always owned cheap (read “broken”) cars. The way I see it, you either make a monthly payment to the bank, or to the parts store. Since I’ve been working on cars for most of my adult life, it made more sense to keep driving cheap cars and doing the work myself.
      That all changed when my 2003 Nissan Altima left me stranded on the side of the highway on my way to pick up my daughter from daycare. I was so thankful she wasn’t in the car with me yet; it was icy, snowy and just downright dangerous.
      I started looking for a new (to me) car that night. I couldn’t justify driving half-busted cars any longer, and I certainly didn’t want to put my then-3-year-old daughter in danger.
      Thanks, COVID …
      Fast forward a month or two, and it’s March 2020. Ohio shuts down, and there’s a lot of uncertainty. I was still searching for a newer car to buy at this point, and I was leaning toward a gently used VW Golf Alltrack. Then, in April 2020, VW offered 0% financing on its new cars.
      When I did the math, the payment on a new one was the same as the payment on a used one. So, I hurried up and scooped up a brand-new 2019 Alltrack, and it’s been my primary vehicle ever since. Mind you, this is the first nice car I’ve ever owned, and I was pretty excited to drive something that was still covered under warranty. But my inner car guy has a lot of influence, and before long I started to make some upgrades.
      Upgrades
      It started out slow. First, a set of WeatherTech floor mats. Then, I picked up some protective film for the headlights, taillights and fog lights. Next, I bought an auto-dimming rearview mirror with built-in HomeLink garage-door-opener functionality. I bought an entire arsenal of car-cleaning products, from microfiber towels to a DIY ceramic coating kit. This was the first nice vehicle I’d ever owned, and I wanted to protect my investment!
      Then the “real” upgrades started. Bigger front and rear sway bars helped to keep the body roll in check, and completely transformed the way the car drove around a corner. Aluminum skid plates underneath for added protection from whatever the roads in Ohio could throw at me. A set of projector headlights with HID lighting gave me unparalleled nighttime visibility. Then, I got the opportunity to test out a prototype 1.25-inch lift kit. Sure, it’s not much, but a touch of added ground clearance is always nice. It also brings the car up to the height that it should have been from the factory, in my opinion at least.
      The truth is, I simply can’t leave a vehicle alone. I have to make it my own, one way or another. But I enjoy the process, and it’s satisfying to watch it slowly evolve into exactly what I want it to be. I share this to help you get inside the minds of some of your more passionate DIY customers.
      Growing Opportunity
      I can’t help but look for things to change, upgrade or improve whenever I buy a vehicle. Doing this might not make sense to everyone, but it’s how I make my vehicles better for me. However, I suspect that I’m not alone in this mindset.
      With new-vehicle prices skyrocketing, it makes sense that someone might choose to repair or upgrade their current vehicle instead of trading it in for something else. And that’s a huge opportunity for the automotive aftermarket.
      According to the 2022 SEMA Market Report, U.S. consumers spent a whopping $50.9 billion on accessorizing and modifying their vehicles last year – an all-time high for specialty-equipment sales. Trucks are a major driving force behind this sales trend, accounting for nearly one-third of those sales.
      Considering that the Ford F-150 has been the best-selling vehicle in the United States for many years – and the top three best-selling vehicles in 2021 were pickup trucks – this should come as no surprise. According to the SEMA report, sales of “utility accessories” such as truck bedliners, truck caps, racks, truck-bed covers and trailer and towing products are expected to grow from $3.79 billion in 2021 to $3.87 billion this year. If you’re not stocking truck accessories, you might want to give this category another look.
      Here’s the bottom line: Every time somebody buys a new or used vehicle, there’s an opportunity for us as counter pros to help them find the accessories they need. The question is, what are you doing to capitalize on this exciting category?
      The post
      link hidden, please login to view appeared first on link hidden, please login to view.
      link hidden, please login to view
    • By Counterman
      Advance Auto Parts is celebrating 90 years of helping motorists advance on the road by inviting consumers to share their most memorable moments behind the wheel.
      In celebration of its “Advanceiversary,” the brand is curating consumers’ most memorable moments on the road for the chance to win a year’s worth of free gasoline and possibly have their road trip recreated. Additionally, Advance is offering quadruple gas rewards now through July 20.
      Through July 31, Advance’s “Drive of Your Life” campaign invites motorists to share their most memorable drives – from cross-country vacations with family or friends … to riding in the homecoming court … to traveling to your team’s bitter rival (and winning!) … to pulling in the driveway of your first home for the first time … to just putting the top down and feeling the breeze when you needed it most.
      To submit the Drive of Your Life, motorists should visit
      link hidden, please login to view or post on Twitter or Instagram, using #DriveOfYourLifeContest and tagging @advanceauto or @advanceautoparts respectively, now through July 31. From those who post, Advance will select and announce each day beginning July 14 one consumer who will receive free Shell gasoline for a year. After the contest ends, Advance will hit the road to recreate select motorists’ drives of their lives.
      “When we reflect on 90 years of commitment to customer care and confidence, we think about our journey behind the many miles we’ve helped motorists advance – both on the road and in their lives,” said Jason McDonell, Advance’s executive vice president of merchandising, marketing and e-commerce. “But even more so, we think about the inspiring, personal stories of those drives. We all have that one drive we’ll never forget – the ‘Drive of Your Life.’ To celebrate our last 90 years and inspire our next 90, we want to hear yours.”
      Advance founder Arthur Taubman was a pioneer in curbside service, beginning the practice by installing tires upon purchase outside the store he worked. This is the root of inspiration for many of the services Advance offers today, including free battery and wiper-blade checks and installation, along with a leading parts selection that caters to motorists’ many needs, the company noted.
      With the price of gasoline hovering around a record national average and the average vehicle age rising, Advance’s celebration comes at a time when motorists face challenges to create new memories on the road after two summers of uncertainty.
      To further help motorists save this summer, all existing and new Advance Speed Perks Gas Rewards members will earn 20 cents off each gallon of gas for a single fill-up at participating Shell stations for every $50 spent at Advance stores across the country between July 13 and 20.

      The post
      link hidden, please login to view appeared first on link hidden, please login to view.
      link hidden, please login to view

    • DIY like a pro! Shop from over 1,000,000 Repair Manuals at eManualOnline.com! As low as $14.99 per manual. Shop now.


      DIY like a pro! Shop from over 1,000,000 Repair Manuals at eManualOnline.com! As low as $14.99 per manual. Shop now.


      DIY like a pro! Shop from over 1,000,000 Repair Manuals at eManualOnline.com! As low as $14.99 per manual. Shop now.

    • By Counterman
      Photo caption: U.S. Reps. Debbie Dingell (left) and Haley Stevens
      The Motor & Equipment Manufacturers Association (MEMA) honored U.S. Reps. Debbie Dingell and Haley Stevens as the 2022 recipients of the Joseph M. Magliochetti Industry Champion Award.
      The award is a special recognition given to elected officials who have shown outstanding leadership on behalf of automotive and commercial vehicle suppliers.
      The awards ceremony was held at the MAHLE Powertrain facility in Plymouth, Michigan.
      The MAHLE Powertrain site develops advanced zero-carbon and battery electric solutions for global OEMs across all markets from automotive to marine and power generation. MAHLE Powertrain is the Engineering Services arm of MAHLE, the global Tier 1 supplier.
      “Representatives Dingell and Stevens have both worked diligently to promote the interests of our industry,” MEMA President and CEO Bill Long said. “We are lucky to have them in our circle, advocating for policies that allow our industry to prosper.”
      Their work carries great significance within the vehicle-supplier industry. Manufacturing automotive parts provides more than 907,000 direct jobs, making it the largest creator of manufacturing jobs nationwide and contributing two-thirds of the value of a new vehicle.
      As a member of the House Energy and Commerce Committee, Dingell’s work on behalf of vehicle suppliers includes advocating for automated-vehicle legislation, programs and policies to assist the motor vehicle industry’s transition to a net-zero transportation fleet, and introducing legislation focused on vehicle-technology R&D activities at the U.S. Department of Energy.
      The congresswoman also led efforts to ensure the passage of the CHIPS Act language, which provides federal funding to increase domestic semiconductor chip production.
      “It is truly an honor to receive the 2022 Joseph M. Magliochetti Industry Champion Award alongside my friend, Congresswoman Haley Stevens,” Dingell said. “MEMA and the supplier industry play such a critical role in the auto industry, employing generations of hardworking men and women in Michigan and contributing billions of dollars to our nation’s economy. Together, we will continue to keep the United States at the forefront of innovation and technology, and ensure that we have a strong and healthy auto industry.”
      In the House, Stevens helped improve the auto rule of origin provisions of the USMCA and built congressional support for this vital measure. She is a leading House advocate of the CHIPS Act, and its legacy chip provision for the motor vehicle and parts sector.
      Stevens has an impressive track record of working across the aisle to deliver for Michigan’s manufacturers supporting broad competitiveness, manufacturing and business priorities in the House and often articulating these to House leadership. As chair of the House Science Committee Research & Technology Subcommittee, she has championed federal funding and training programs to assist the auto parts sector in its transition to an EV future.
      “I am unbelievably honored to receive this recognition. I’ll never stop advocating in Congress for our Michigan manufacturers and automotive suppliers,” Stevens said. “They are truly the backbone of the booming SE Michigan economy and are leading the industry in innovating our future.” 
      The Industry Champion Award is presented in the memory of Joseph Magliochetti, a former MEMA chairman who also served as the chairman and CEO of Dana Corp. until his death in 2003. He was widely recognized as a leader and a visionary in the supplier industry, and as MEMA chairman, he left a legacy of advocacy and outreach on behalf of all vehicle suppliers.
      Automotive and commercial vehicle suppliers are the largest employer of manufacturing jobs in the U.S., contributing nearly 3% of the U.S. gross domestic product.
      The post
      link hidden, please login to view appeared first on link hidden, please login to view.
      link hidden, please login to view
×
  • Create New...