Car Accident Simulation Programmes
In the paper SMASH - a computer program for road accident simulation is presented. Besides the logic of the program the models of vehicle, tire and crash itself are. Software for the simulation of car accidents. PC-Crash enables the reconstruction and. An integrated drawing program enables the creation of accident sketches.
A crash simulation with a slender (left) and obese (right) female passenger. A crash simulation is a recreation of a destructive of a or a highway using a in order to examine the level of safety of the car and its occupants. Crash are used by during (CAE) analysis for in the (CAD) process of modelling new cars. During a crash simulation, the, or energy of motion, that a has before the impact is transformed into, mostly by of the car body material , at the end of the impact.
Data obtained from a crash simulation indicate the capability of the car body or guard rail structure to protect the vehicle occupants during a (and also hit by a car) against. Important results are the deformations (for example, intrusions) of the occupant space (driver, ) and the (for example, head acceleration) felt by them, which must fall below threshold values fixed in legal. To model real crash tests, today's crash simulations include virtual models of and of passive safety devices (, shock absorbing, etc.). Guide rail tests evaluate vehicle deceleration and rollover potential, as well as penetration of the barrier by vehicles. Contents.
Origin In the years 1970 attempts were made to simulate car crash events with spring-mass systems after, which require as an input the results of physical destructive laboratory tests, needed to determine the mechanical crushing behavior of each spring component of the modeled system. ' simulations like more elaborate finite element models, however, need only the definition of the structural geometry and the basic material properties ( of car body steel, glass, plastic parts, etc.) as an input to generate the numerical model. The origins of industrial first principle computerized car crash simulation lie in, and civil applications. Upon presentation of a simulation of the accidental crash of a military plane into a nuclear power plant on May 30, 1978 by in a meeting organized by the (VDI) in, car makers became alerted to the possibility of using this technology for the simulation of destructive car crash tests (Haug 1981). The first successful frontal full car crash simulation: a Volkswagen Polo collided with a rigid concrete barrier at 50 km/h (ESI 1986). In the following years, German car makers produced more complex crash simulation studies, simulating the crash behavior of individual car body components, component assemblies, and quarter and half car bodies in white.
Car Accident Simulation
These experiments culminated in a joint project by the Forschungsgemeinschaft Automobil-Technik (FAT), a conglomeration of all seven German car makers (, and ), which tested the applicability of two emerging commercial crash simulation codes. These simulation codes recreated a frontal impact of a full passenger car structure (Haug 1986) and they ran to completion on a computer overnight. Now that turn-around time between two consecutive job-submissions (computer runs) did not exceed one day, engineers were able to make efficient and progressive improvements of the crash behavior of the analyzed car body structure. Application Crash simulations are used to investigate the of the car occupants during impacts on the front end structure of the car in a ' or 'frontal impact', the lateral structure of the car in a “” or “side impact”, the rear end structure of a car in a ' or “rear impact”, and the roof structure of the car when it overturns during a '. Crash simulations can also be used to assess injury to hit by a car.
Pricing
Benefits A crash simulation produces results without actual of a new car model. This way, tests can be performed quickly and inexpensively in a computer, which permits optimization of the design before a real prototype of the car has been manufactured. Using a simulation, problems can be solved before spending time and money on an actual crash test. The great flexibility of output and enables designers to solve some problems that would have been nearly impossible without the help of a computer. Analysis.