Effect of extreme dependency on computer Essay Example
Effect of extreme dependency on computer Essay Example

Effect of extreme dependency on computer Essay Example

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  • Pages: 3 (810 words)
  • Published: February 11, 2018
  • Type: Essay
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Computers are used in every field today, whether it's for major space exploration or simple tasks like cleaning our room. While computers make our lives easier, a computer failure can also cause misery. Trust in computers has become paramount, as we use them for communication, sharing personal information, online shopping, and ensuring our safety.

We have gone beyond using computers for house alarm systems and other safety devices, and now use them to test car crashes. Crash analysis programs have been widely used since the late 1900s, and ERA Personnel at the Silicon Valley Office have been studying crash response since 1971. The DYNAMO program, developed at Lawrence Livermore National Laboratory, is a major tool for this type of testing.

DYNAMO is a computer simulation program that models the impact of physical objects, such as vehicle collisions with roadside struc

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tures like signs, supports, guardrails, and crash cushions. This program is particularly designed for problems involving rapid change and has found numerous applications in safety analysis.

Laboratory analysts have utilized the DYNAMO software program to examine the creditworthiness of various vehicle safety studies. These studies involve assessing the impact of complex vehicle models on roadside safety structures and other vehicles, which result in deformation upon collision.

DYNAMO employs a technique called the finite-element method, whereby a grid is imposed on the car's frame, effectively dividing it into discrete elements or pieces. This grid, along with material specifications like density and elasticity, is inputted into the program. During analysis of a head-on collision's effect on the car's structure, data can be initialized to simulate a crash into a wall at a specified velocity.

In return, the program calculates th

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force, acceleration, and displacement at each grid point, as well as the stress and strain within each element. By utilizing repair programs, the simulation generates visual representations of the car at specific intervals after impact.

According to Roger Blight, manager of Tilt's Highway Safety Structures Program at Texas Transportation Institute, DYNAMO has a significant advantage over traditional crash testing in terms of cost-effectiveness. Blight explains that this program allows researchers to explore scenarios that are typically impractical to study through conventional crash testing methods.In terms of real-world jesting, we are often limited by technology or finances. However, on the website, we are not restricted by such constraints (25th May). By using the simulation program, researchers can conduct various tests from different perspectives and speeds without the need to repair or replace the structure or vehicle for each test. They can simulate real-world conditions like roadside terrain. Additionally, researchers can visually observe the impacts from different angles to study how the structure or vehicle reacts. This allows them to delete specific elements, such as the roof or hood of a car, to observe the effects on internal elements during the impact. This effect would be difficult to study in an actual crash test. While it is not feasible to conduct all these combinations in physical tests, simulations enable the analysis of more design variations without significant additional costs. The cost of an actual crash test can range from $50,000 to $800,000. The higher cost includes building and testing a unique prototype for a new car design (A Gift of Fire, Abase). With the simulation results, researchers can make adjustments to existing structures or develop improved ones. As

safety standards in the transportation industry evolve to accommodate new vehicle designs and operating speeds, the simulation program can aid in developing enhanced safety features or upgrading existing roadside structures to meet these new standards.

However, there is still a long way to go in increasing the sophistication and accuracy of these crash analysis models. Improvements are needed to better reflect the reality of what happens during a crash. From a skeptic's viewpoint, it is important to assess the accuracy and completeness of the data inserted by the program.

Basic principles such as force and acceleration are relatively accurate, as are properties of materials like steel, glass, and aluminum. However, there is less understanding about the behavior of these materials under abrupt conditions and high-speed impacts.

Another challenge is that cars are not made up of blocks or grids like in the program, which can affect the impact dynamics. Currently, these are the main issues faced by the DYNAMO program. Resolving these problems would increase trust in Car Crash Analysis.

Despite these challenges, the computed results generated by the program closely correspond to data collected from actual crash tests on real cars. As a result, car crash analysis programs are increasingly being used as a design tool for new cars, although physical crash testing is not completely eliminated.

Crash design programs are remarkable tools for enhancing safety in car design while minimizing development costs. We are relying on computers to aid us in creating safer vehicles, and currently, they are performing exceptionally well.

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