That classicized chase scene, in which Steven Spielberg chased Jurassic Park's infamous Tiranosor rex (T-rex) wounded Jeff Goldblum in the revolutionary adaptation film of modern cinema history, Could a quick T-rex run so fast or could an edge run really fast?
A new study at Manchester University found that the weight and size of the T-Rex meant that it could not run at high speed, or that leg bones would bend under their own weight.
In a study published in PeerJ a new simulation model was developed to investigate the walking patterns and biomechanics of the world's most famous dinosaur T-rex using in-depth state-of-the-art high quality computer program- ments and to test the findings
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In a study conducted by Professor William Sellers of the School of Earth and Environmental Sciences, researchers combined two different biomechanical methods, namely multi-body dynamic analysis (MBDA) and skeletal stress analysis (SSA), as a single simulation model, created a model.
Prof. Sellers says the results show that running any of the T-Rex will result in an unacceptably high weight on the skeleton. Any running of the T-Rex is said to cause the legs to break. This contradicts the biomechanical model that was created earlier and predicts that T-Rex can run about 73 km / h.
Sellers, "The ability to run T-Rex and other similar large dinosaurs has been much discussed by paleontologists over the years we passed. However, in different studies using different methodologies, a number of maximum speed estimates have been proposed, so we think that new technologies should be developed to test the accuracy of these estimates. In this respect, we also present a new approach that combines two separate biomechanical methods to demonstrate that running in any way will put a weight on the skeleton of the T-rex at a destructive altitude. "
The results also revealed that T-Rex could not follow the prey quickly as previously thought. According to Sellers, the fact that they are moving with walking speed contradicts the allegations that big and bipedal dinosaurs such as T-rex have been hunted very quickly, and shows how effective multifactorial approaches can be for locomotive reconstructions of endangered animals.
Although the research is primarily focused on T-Rex, the findings suggest that walking at high speed is unlikely for other bipedal dinosaurs such as Giganotosaurus, Mapusaurus and Acrocanthosaurus.
Sellers, "Tiranozor rex is one of the largest bipedal animals that have ever lived on earth. It therefore offers a model that is congruent with the concept of biomechanics of animals similar to ours. So, the findings can be adapted to other long-haired animals, but experimental confirmation is needed. "
The use of multi-body dynamic analysis (MBDA) and skeletal stress analysis (SSA) methods to measure the performance of dinosaurs is not the first. However, they are used for the first time to create a more accurate table.
DR. Sellers says that the teropod can be used to calculate the weight to be formed on the skeleton by running on previous simulations on running on two feet but not directly in the calculations, but to calculate all the weights that can occur in the limb bones in new simulations and how much load they have on each bone at each step
The fact that T-Rex can not run, but can only walk, supports the notion that it has a less athletic lifestyle. This means that the results can change our knowledge of how the weights and forms of T-rex and other large bipedal dinosaurs change over the course of their development. Earlier studies have shown that as the T-rex grows, its limbs grow and diminish as their proportions decrease. These changes show that the running skills of T-Rex have also changed throughout the development process and that adults are less agile than younger people.
DR. Sellers say that the new model should be applied in a more comprehensive way, starting with new findings. "At this point we are not only able to study the behavior of other species, but it is also very appropriate for us to apply our multiphysics approach to the different stages of growth in these species," he added.
University of Manchester. July 18, 2017.
Article : Sellers, W. I., Pond, S. B., Brassey, C. A., Manning, P. L., & Bates, K. T. (2017). Investigating the running abilities of Tyrannosaurus rex using stress-constrained multibody dynamic analysis. PeerJ, 5, e3420.