Understanding Friction in Cam–Tappet Contacts—An Application-Oriented Time-Dependent Simulation Approach Considering Surface Asperities and Edge Effects
نویسندگان
چکیده
With the increasing challenges of climate change and scarce resources, development sustainable energy-efficient technical systems is becoming increasingly important. In many applications, friction losses occurring in contacts have a decisive influence on overall efficiency. At this point, tribological contact optimization can make an important contribution to efficiency systems. However, improvements are often associated with considerable experimental effort. To reduce time, additional simulation models be applied predict behavior. This requires closest possible approximation real within numerical model. paper presents approach for time-dependent cam–tappet contact. The uses realistic operating conditions as they arise valve train internal combustion engines. edge effects behavior considered by scaled calculation area surface roughness investigated using stochastic asperity models. It shown that strongly depends properties load spectrum used. addition, sides clear pressure film thickness distribution.
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ژورنال
عنوان ژورنال: Lubricants
سال: 2021
ISSN: ['2075-4442']
DOI: https://doi.org/10.3390/lubricants9110106