Modeling Optimizes A Piezoelectric Energy TPMS Mounting Rim Tread Shuffle
公司规模
Large Corporate
地区
- Europe
国家
- Germany
产品
- COMSOL Multiphysics
- MEMS Generator
- TPMS
技术栈
- Fluid-Structure Interaction Simulation
- Piezoelectric Ceramic Material
- Silicon Carrier Layer
实施规模
- Pilot projects
影响指标
- Cost Savings
- Environmental Impact Reduction
- Innovation Output
技术
- 分析与建模 - 预测分析
- 分析与建模 - 数字孪生/模拟
- 分析与建模 - 实时分析
适用行业
- 汽车
- 电子产品
适用功能
- 产品研发
- 质量保证
用例
- 预测性维护
- 机器状态监测
- 远程资产管理
服务
- 软件设计与工程服务
- 系统集成
关于客户
Siemens Corporate Technology, based in Munich, Germany, is a research and development division of Siemens AG. The team at Siemens Corporate Technology is dedicated to exploring and developing platform technologies for future applications rather than focusing on specific products. Their research spans a wide range of fields, including energy harvesting, microelectromechanical systems (MEMS), and fluid-structure interaction simulations. Siemens Corporate Technology collaborates with various partners, such as Continental AG, to demonstrate the commercial potential of their research. The team is composed of senior engineers and researchers who are committed to advancing technology and innovation.
挑战
The desire to eliminate batteries and power lines is motivating a wide range of research. In the quest for systems that are energy autonomous, the concept of energy harvesting is attracting a great deal of attention. For researchers at Siemens Corporate Technology in Munich, exploring the potential of an energy-harvesting microelectromechanical system (MEMS) generator holds strong appeal. The researchers chose to design a microgenerator for an innovative tire pressure monitoring system (TPMS) driven by motion. Yet locating the device within the tire requires that the assembly be extremely robust and able to withstand gravitational accelerations up to 2500 g. Moreover, to avoid tire imbalance it would have to be very light, and in terms of operational life it would need to match that of a tire—a minimum of eight years.
解决方案
The Siemens team designed a piezoelectric microgenerator to be mounted inside a tire, capable of harvesting energy from the compression created each time the tire touched the ground. The cantilever was designed with a thin film of self-polarized piezoelectric ceramic material and a silicon carrier layer for mechanical stability. The team settled on a triangular design for the spring-loaded piezoelectric cantilever to enable uniform stress distribution. They conducted fluid-structure interaction (FSI) analysis to optimize the cantilever's design, focusing on minimizing damping and ensuring mechanical oscillation. The use of COMSOL Multiphysics simulation software was critical in numerically describing the behavior of the structure and optimizing system components and integration.
运营影响
数量效益
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