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- W2185782838 abstract "Isolation of vibration in engine components has always been one of the design issues in transportation vehicles especially in automotive industry with the aim of improving the driving quality and increasing the life time of engine components. The focus on improving the functional properties of automobiles in the past years has heightened the significance of engine vibrations. The present study introduces a new type of electromagnetic active multi-chambers engine mount that has been produced as a result of introducing changes in the structure of the earlier engine mounts with the purpose of resolving the cooling issue. Then, using geometric modeling and numerical analysis, the volume stiffness and compliance coefficients are extracted. To validate the proposed approach, the presented procedure is implemented on the engine mount or other existing empirical data and after extracting data derived from similar studies, the accuracy of analysis on the newly developed engine mount is confirmed. An important issue in the automotive industry which plays a major role in satisfying the customers and improving the quality of the vehicle is vehicle dynamics and vibrations. It can be classified in to two groups. The first one deals with the role and performance of components and their effects on vehicle vibrations and the other investigates the importance of the joints which connect these components to the body and chassis of the vehicle. The former deals with studies concerning the vibrational-dynamic aspects while the strength- related aspects are studied by the latter. The discussion of engine mounts focuses on one of the components involved in vehicle vibrations. Elastomeric and passive engine mounts fulfill the former requirement, but they have unsatisfactory performance in other cases. So, the focus has turned to engine mounts with dynamic properties related to frequency and amplitude. In other words, to overcome the vibration problem, the adaptive control method of vibration was employed, which consists of two types, namely active and semi active (Feyzi et al., 2011). This explains the growing attention paid to the active and semi-active engine mounts and attempts made to modify the flaws and improve their performance. This has given rise to a variety of aspects such as new modeling, various experiments and analyses about the engine mounts. Among these, the thermal issues governing engine mounts especially thermal damage to rubber parts, heat transfer methods and repairing damages can be mentioned. On the other hand, in a number of automotive industries, the design and optimization of engines mounts is of paramount importance. To find the optimum location for anengine mount, a design engineer needs to know the properties of enginemount such as stiffness, volume compliance and damping as well as the specifications of power train such as size, number of cylinders, inertia, and the like. To identify the optimal location for engine mounts with the aim of maximal isolation of engine vibration from the chassis, repeated and multiple experiments are required to find the optimum stiffness of engine mount in various locations. The present study seeks to propose a new method based on limited elements, which is both quick and economic and needless of complex, time-consuming experiments conducted on essential optimization parameters such as stiffness and volume compliance so that it can bridge the gap between design and optimizations. On the other hand, the static stiffness is a primary parameter in engine mount." @default.
- W2185782838 created "2016-06-24" @default.
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- W2185782838 date "2014-04-12" @default.
- W2185782838 modified "2023-09-26" @default.
- W2185782838 title "Introducing a Novel Active Multi-Chamber Engine Mount with Self-Cooling Capability with an Estimation of Vibrational Parameters" @default.
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