Validated Analytical Modeling of Eccentricity and Dynamic Displacement in Diesel Engines with Flexible Crankshaft
نویسندگان
چکیده
In spite of the fact that flexibility crankshaft diesel engines exhibits notable nonlinearities, analytical modeling such nonlinearities is not yet realized. The present study thus analytically models effect eccentricity on flexible and piston secondary motion. modeled as summation hydrodynamic dynamic mass crankshaft. also absolute value vibrational displacement center paper proves sensitive to changes in its independent variables. It was found most influential parameters due vibration are natural frequency a validated using case based showing relative error 4%, which less than CMEM GT-Power. Furthermore, another fatigue analysis 9%, Newman’s model engine fuel consumption Lansky’s cylinders. presents proposed approach failure for vehicular components nanostructure crankshafts improving performance. developed would help develop efficient prolong their service life.
منابع مشابه
prediction of ignition delay period in d.i diesel engines
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
Modeling of Heat Losses Within Combustion Chamber of Diesel Engines
The cylinder working fluid mean temperature, rate of heat fluxes to combustion chamber and temperature distribution on combustion chamber surface will be calculated in this research. By simulating thermodynamic cycle of engine, temperature distribution of combustion chamber will be calculated by the Crank-Nicolson method. An implicit finite difference method was used in this code. Special treat...
متن کاملSix Degrees Crankshaft Individual Air Fuel Ratio Estimation of Diesel Engines for Cylinder Balancing Purpose
In the context of modern engine control, one important variable is the individual Air Fuel Ratio (AFR) which is a good representation of the produced torque. It results from various inputs such as injected quantities, boost pressure, and the exhaust gas recirculation (EGR) rate. Further, for forthcoming HCCI engines and regeneration filters (Particulate filters, DeNOx), even slight AFR unbalanc...
متن کاملOptimization of waste gate in the diesel engines with turbocharger
The usage of turbochargers in diesel engines has led to the downsizing of the motors as well as usage of the waste gates in turbochargers. Any dimensional reduction in turbochargers and appurtenant leads to an enhancement on the performance of internal combustion engines and in environmental problems in terms of aerodynamic, thermodynamic and mechanical specifications for both engines and turbo...
متن کاملCombustion Modeling for Modern Direct Injection Diesel Engines
In order to comply with stringent pollutant emissions regulations, a detailed analysis of the engine combustion and emission is required. In this field, computational tools like CFD and engine cycle simulation play a fundamental role. Therefore, the goal of the present work is to simulate a high speed DI diesel engine and study the combustion and major diesel engine emissions with more deta...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en15166083