Fang Zongde

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The method for the mesh stiffness calculation of gear pair through Loaded Tooth Contact Analysis is presented in this paper. The mesh stiffness and load distribution of a helical gear pair are calculated. On that basis, the effect of two kinds of axial angle errors on mesh stiffness is compared and the effect of axial modification on mesh stiffness is(More)
In order to study the adjustability of spark plug gaps in different ignition Systems in search of optimum spark plug gap, traditional contact-controlled inductive storage ignition system and superposing high ignition system were used in BN492QA engine respectively. Performance of the two different ignition systems matching different spark plug gaps were(More)
The controller design is a challenging task for the electric propulsion system (EPS) of the hybrid electric vehicle (HEV), which influences the economical efficiency and emission performance of HEV significantly. A single-axle parallel hybrid powertrain configuration for the IVECO vehicle is described firstly. Secondly, a DSP-based controller design(More)
The cab suspension system plays an important role in vehicle ride performance. In order to fully assess the ride comfort characteristics of a heavy vehicle with three different structures of cab suspension system, Road tests under various conditions were carried out. And the vibration characteristics of the three different structures of cab suspension(More)
Different from the tooth profile modification, a design of the holey straight bevel gear is proposed. Based on the sphere involutes deduced with the engaging principle, the precise model is established by Pro/E in the first place. Then the finite element model is established in HyperWorks and the transmission error is analyzed. Finally taking transmission(More)
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