{"id":32380,"date":"2018-12-31T21:58:14","date_gmt":"2018-12-31T21:58:14","guid":{"rendered":"\/forum\/forums\/topic\/transient-structural-decelerating-accelerating-body\/"},"modified":"2018-12-31T21:58:14","modified_gmt":"2018-12-31T21:58:14","slug":"transient-structural-decelerating-accelerating-body","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/transient-structural-decelerating-accelerating-body\/","title":{"rendered":"Transient Structural \u2013 Decelerating\/Accelerating Body"},"content":{"rendered":"<p>I am in the process of simulating a body undergoing intense acceleration and deceleration. The body is an upside down U shape as seen below. It will be moving along a track, with wheels for stabilization. To simplify, the analysis conditions for a decelerating body will be listed:&nbsp;<\/p>\n<p><\/p>\n<ul><\/p>\n<li>initial velocity of 250 mph (-z)<\/li>\n<p><\/p>\n<li>1 g of deceleration (acceleration in +z)<\/li>\n<p><\/p>\n<li>Deceleration lasts until velocity reaches 0 mph<\/li>\n<p><\/p>\n<li>Displacement constraints applied at stabilizer wheel locations<\/li>\n<p><\/p>\n<li>Approximate component loads applied (red faces)<\/li>\n<p>\n<\/ul>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/Fpa1Tl1oA4uJ0PA4LyI6k_2_VMhfv94XDa6YyfNSFa_RaJTCdM-IFDf7QsYS8rgZqVSZ3F-FPqLHdjKoIHBXvhtFhR8myNp3IuwpxrhenC9l6KeJS2DOJFgtWE4n5rjtJjkIC7OY\"><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>So far, only non-converged results have been obtained. What might be keeping the analysis from converging? Is there a better way to setup the simulation?<\/p>\n<p><\/p>\n<p><span style=\"white-space: pre-wrap; color: #000000; font-family: Arial; font-size: small;\">Other than achieving converging results, the main goal is to ensure that the simulation is accurate to an actual deceleration on the track. Right now, dynamics and interactions between the pod components (motor, electronics, cooling, etc.) do not exist. What might be the best way of setting this up to account for moments, twisting, compression, etc., created by the components that will be mounted on the pod? <\/span><\/p>\n<p>\n<span style=\"color: #000000; font-family: Arial;\"><span style=\"white-space: pre-wrap;\">&nbsp;<\/span><\/span><br \/>\n<span style=\"color: #000000; font-family: Arial;\"><span style=\"white-space: pre-wrap;\">Should remote points be created and connected to the holes with each respective component weight applied at the remote point? Is it correct to apply an initial velocity, and then the deceleration (as we have done previously), or is there a better way to simulate a decelerating body? Any help would be appreciated.<\/span><\/span><\/p>\n","protected":false},"template":"","class_list":["post-32380","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I am in the process of simulating a body undergoing intense acceleration and deceleration. The body is an upside down U shape as seen below. It will be moving along a track, with wheels for stabilization. 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