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Nov 27, 2018Open AccessArticle
The oil pump is an important part of vehicle engine, whose noise and vibration characteristics affect the engine performance significantly. The noises generat-ed by both the pressure and flow fluctuations are the main contributors to the oil pump noise. In this paper, noise analysis of an external gear pump is carried out by using the computational fluid dynamics (CFD) method and The Lighthill ...
Aug 30, 2018Open AccessArticle
The replacement of carbon fiber reinforced epoxy
resin matrix composite (CFRP) in the B-pillar of the body structure was
discussed. Under the condition of ensuring crashworthiness, the lightweight
application of B-pillar on the structural parts of the automobile was realized.
Taking the steel B-pillar of a certain model as the prototype, CFRP is used for
the same stiffness design, and the stiffness, crashworthine ...
Jun 14, 2018Open AccessArticle
In order to solve the lack
of automatic transmission slippage fault data, the uncertainty of the link
between the source of the fault and the degree of failure, the lack of
applicability of the traditional Boolean logic gate, the T-S model and fuzzy
theory and the revision of the confidence index are proposed. The expert survey
method was combined and the analysis method was introduced into the fault tree.
The T-S model is introdu ...
May 30, 2018Open AccessArticle
There
are many types of vehicle generators and their parameters are different.
Therefore, the motor selected for the remanufacturing test bench should be
suitable for most generators. Therefore, there is a certain requirement for the
adjustment range of the motor speed. The AC-DC-AC frequency converter has a
large frequency adjustment range, which can meet the motor speed control
requirements. In this paper, the S ...
Apr 29, 2018Open AccessArticle
Because the car must be in the process of braking,
including deceleration and parking and including downhill to maintain the speed
of stability, in addition to the above driving brake should also include
parking brake which is to
maintain the stop of the vehicle that continues
to maintain static, according to the law of Conservation of Energy. The kinetic energy of the brake drum of the
rotating part of the friction p ...
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