Endurica帮助Tenneco准确模拟橡胶衬套在复杂载荷下的疲劳问题_ACT_疲劳_非线性_通用_汽车_ADS

Endurica帮助Tenneco准确模拟橡胶衬套在复杂载荷下的疲劳问题

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Endurica’s methods give us robust life-prediction capabilities and are really good tools to help us determine which design option is the best. We’re using it up-front, during development, and during production — we’re using it everywhere we can.

---------Guy Smith Chief Engineer/CAE Manager Tenneco Clevite Elastomers

Endurica的方法为我们提供了强大的产品寿命预测能力，是帮助我们确定最佳设计方案的真正好工具。我们在前期、开发过程和生产过程中都在使用它--我们在可以用到的一切地方都在使用它。

---------盖伊·史密斯总工程师/CAE经理Tenneco克莱维特弹性体

BACKGROUND（背景）

Tenneco is one of the world’s leading designers, manufacturers and marketers of automotive products for original equipment and aftermarket customers with 71,000 team members at more than 260 sites worldwide. Tenneco’s four business groups — Motorparts, Performance Solutions, Clean Air, and Powertrain — deliver technology solutions for diversified global markets, including light vehicle, commercial truck, off-highway, industrial motorsport and the aftermarket. Tenneco has won many awards, including General Motors Supplier of the Year (5 consecutive years); the automotive suppliers PACE award for superior innovation, technological advancement and business performance; and the PACCAR 10 PPM Quality Award for meeting the truck manufacturer’s (Kenworth, Peterbilt and DAF) stringent quality standards.

Tenneco是世界领先的汽车产品设计者、制造商和销售商之一，为原始设备和售后市场客户提供服务，在全球260多个地点拥有71,000名团队成员。Tenneco的四大业务集团——汽车零部件、性能解决方案、清洁空气和动力总成——为全球多元化市场提供技术解决方案，包括轻型汽车、商用卡车、非公路、工业赛车和售后市场。Tenneco荣获过许多奖项，包括通用汽车年度供应商（连续5年）；因卓越的创新、技术进步和经营业绩而获得的汽车供应商“PACE”奖（“汽车供应商杰出贡献”奖）；以及满足卡车制造商（Kenworth、 Peterbilt和 DAF）严格的质量标准而获得的PACCAR 10 PPM质量奖。

ISSUES（问题）

Tenneco’s OEM customers are challenging their suppliers to provide virtual validation of durability performance requirements. OEMs are reducing financial support for multiple iterations of time-consuming physical prototypes and testing while also expecting performance standards to be maintained. In new business proposals, OEMs are seeking earlier evidence to support durability targets. In ongoing development programs, they require rapid responsiveness to design changes. In production, they require strong forensic and troubleshooting capabilities to quickly resolve durability issues that may arise.

Tenneco的OEM客户正在向他们的供应商提出挑战，要求他们提供耐用性性能要求的虚拟验证。OEM厂商正在减少对耗时的物理原型开始和测试的多次迭代的资金投入，同时保持产品性能标准不降低。在新的业务提案中，OEM厂商正在寻求在更早的开发阶段满足产品耐久性目标的方法。在正在进行的开发项目中，他们需要对设计变化做出快速反应。在生产中，他们需要强大的取证和故障排除能力，以快速解决可能出现的耐用性问题。

SOLUTION APPROACH（解决方法）

Tenneco has used Endurica’s workflows since 2010 to fully test 50+ compounds and perform 2,100+ Endurica fatigue simulations to meet their customer demands.

自2010年以来，Tenneco已使用Endurica工作流程全面测试了50多种配方，并进行了2,100多次Endurica疲劳模拟，以满足客户需求。

Tenneco’s material testing lab is equipped and qualified to measure in-house all of the material properties used in the Endurica durability simulations. Their testing capabilities include: hyperelastic stress/strain, critical tearing energy and fatigue threshold with the Coesfeld Intrinsic Strength Analyser (Tc and T0 ), fully relaxing and nonrelaxing fatigue crack growth rate, and crack nucleation/crack precursor size (c0 ).

Tenneco 的材料测试实验室装备精良，能够测量用于Endurica疲劳仿真软件的全部材料属性。他们的测试能力包括：超弹性应力/应变测试、临界撕裂能和疲劳阈值测试（Tc 和 T0）、完全松弛和非完全松弛疲劳裂纹生长率以及裂纹成核/本征微裂纹尺寸 (c0)。

Durability simulations are a key component of the engineering package Tenneco uses to win new business from their OEM clients. The ability to efficiently and accurately simulate road loads, block cycle schedules, and multiaxial, variable amplitude load inputs as part of routine production engineering workflows sets Tenneco apart from its competition.

耐久性仿真是Tenneco用于从OEM客户那里赢得新业务的关键工具。作为常规生产工程工作流程的一部分，Tenneco 能够高效、准确地模拟道路载荷、块谱载荷和多轴、变幅载荷输入，这使其在竞争中脱颖而出。

Endurica has made it possible to test designs on durability prior to building prototypes. This cuts cost, time, and the number of iterations to get a design that works. Endurica has made our operations more efficient by saving on tooling, components, and raw materials. Customers now require virtual durability prediction in technical reviews. Without it a company cannot win new business. Tenneco has included Endurica results in numerous technical presentations shared with customers, and it has been used to win business.

Endurica使用户可以在产品样机开发之前就验证方案的耐久性。这样可以降低成本、缩短时间、减少反复设计的次数，以获得可行的设计方案。Endurica通过节省工具、部件和原材料，从而提高了我们的运营效率。客户现在常常要求在技术审查阶段进行虚拟仿真预测产品的耐久性。没有它，公司就无法赢得新业务。Tenneco已将Endurica的分析结果引入与提供给客户的众多技术报告中，并已用于赢得业务。

来源：Endurica

为什么顶尖企业都在用它做橡胶耐久性分析?

Endurica DT是我们的增量求解器，是Endurica CL的附加组件。向Endurica DT提供一系列载荷情况，它会更新橡胶零件的剩余寿命。Endurica DT模拟橡胶性能如何随时间变化。Endurica DT is our incremental solver and is an add-on to Endurica CL. Give Endurica DT a series of load cases and it updates you on the remaining life of your rubber part. Endurica DT simulates how rubber changes over time. 优点 Benefits 1 模拟真实工况。将仿真的载荷工况和顺序与产品疲劳测试实际工况相匹配；Realistic use cases. Match the load cases and schedule for simulation with what your part experiences during product durability testing; 2 逼真的材料行为。考虑载荷和材料特性随时间的变化；Realistic material behavior. Account for load and material property evolution with time; 3 符合实际的寿命中止准则。模拟基于刚度的寿命终止标准（即按部件刚度损失的一定百分比计算的寿命）。Realistic end-of-life criterion. Simulate stiffness-based end of life criteria ( end of life at a percentage of component stiffness loss). 特点 Features 1 Endurica DT在您指定的一系列载荷情况下分析损坏情况（例如：块谱循环载荷、FMVSS多步骤轮胎疲劳测试、统计直方图）；Endurica DT a nalyzes damage over a series of load cases that you specify (examples: block cycle schedule, FMVSS multi-step tire testing, histogram bins); 2 Endurica DT可从载荷循环次数、裂纹尺寸、最大应变能密度、等效老化时间和循环软化等方面跟踪损伤状态的演变情况；Endurica DT tracks damage state evolution in terms of cycles applied, crack size, maximum-ever strain energy density, equivalent ageing time, and cyclic softening; 3 Endurica DT计算每个预定载荷工况结束时的剩余寿命/剩余强度；Endurica DT calculates residual life / residual strength at the end of each scheduled load case; 4 Endurica DT为老化和循环刚度损失分析提供了联合仿真工作流程，其中应力应变计算结果因材料特性的演变而更新；Endurica DT offers co-simulation workflows for ageing and cyclic stiffness loss a nalyses in which the stress-strain solution are updated due to material property evolution; 5 Endurica DT为结构健康监测应用提供数字孪生功能。Endurica DT offers a Digital Twin capability for structural health monitoring applications. 注释：FMVSS：联邦机动车辆安全标准,它规定了制造商和用于制造车辆的设备的最低性能要求。FMVSS: Federal Motor Vehicle Safety Standards. It establish minimum performance requirements for manufacturers and the equipment used to make vehicles.数字孪生功能：数字孪生是一项前沿技术，通过反映产品、流程或服务的几乎所有方面，彻底改变了行业。它有可能在数字空间中复制物理世界的一切，并为工程师提供来自虚拟世界的反馈。Digital Twin capability: Digital Twin is a cutting-edge technology that has revolutionized the industry by mirroring almost every facet of a product, process, or service. It has the potential to replicate everything in the physical world in the digital space and provide engineers with feedback from the virtual world . 来源：Endurica