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For two selected full scale car to car collisions (frontal and side impact) three dimensional vehicle movement as well as dummy accelerations were compared.
      
NHTSA have implemented a star rating system to inform consumers of the rollover propensity of vehicles as part of the New Car Assessment Program.
      
The objective of this paper is to present the Swedish Vision Zero Experience concerning separating car traffic with cable barriers and upgrading traffic safety on existing 13 m roads using low cost measures.
      
Applying this foam as a head restraint padding material, several sled tests using a standard car seat were performed.
      
Furthermore, the bumper areas that cause the most severe lower extremity injuries in car-pedestrian impacts were identified from in-depth accident databases in Japan.
      
A simplified acceleration-displacement pulse for the combined car and pole was used in the modelling described here.
      
The depth of crush into the car, at the point when 20 g is reached was estimated using published analysis of full-scale tests and it is a function of the car's mass, width, length and the diameter of the pole.
      
The division of crush depth between the pole and the car was calculated using the assumption that the pole can be developed to crush from the time that the car reaches 20 g acceleration.
      
The results show that a pole that provides no more than 20 g acceleration to a light car and remain upstanding, will be demolished by a medium or heavier sedan.
      
A pole that would likewise suit a medium sized car would provide very little acceleration reduction for the lightest cars, and the heaviest sedans would in turn demolish it.
      
If it were possible to identify a probable impacting type of car, then poles may be designed to provide significant hazard reduction for those cars, but they would be less effective to other cars.
      
Analysis of collision between pedestrian and small car
      
The subject of the research was a collision of a pedestrian and a passenger car.
      
The findings show that children are generally well protected when properly restrained in a child seat in the rear seat of a passenger car.
      
Mathematical models of a production car including the toepan and occupant were developed.
      
According to real-life crash data, one of the most harmful events among all side impacts is when the driver-head hits the far-side door when the car is hit from the far side.
      
In the full scale crash-test a deformable barrier with a speed of 65 km/h struck the passenger side of a passenger car with a BioSID in the driver seat.
      
The characteristics of these nonlinear force elements represent the force-deformation curves of individual car-bodies extremities, couplers between car-bodies and stiffness of the suspensions springs.
      
The contact forces between the end extremities of the colliding car-bodies, that model the longitudinal impact, include the action of anti-climber devices, which are designed to prevent sliding between the contacting buffers.
      
The validated model is applied to the collision of two different trains, which have distinct specifications for the nonlinear force elements that represent the end extremities of the colliding car-bodies and their couplers.
      
 

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