2014年4月18日 · To make things easy, if we assume the spring(s) initial combined compressed distance is equal to the final spring(s) total travel (ie. 1000mm) after 1 second, since there are 20 identical compression springs working in series, each …

2020年10月31日 · Yes, softer springs, or springs in series will work. In cars we often use subframes to get better attenuation, so the system becomes screen-k1-subframe-k2-structure. This decreases the transmissibility of the vibration to 12 dB/octave instead of 6 for a simple spring on mass system, when done properly. if you know the problematic frequencies ...

2008年11月12日 · where F1 is defined as the frequency of a modified form of the structure in which all the springs remain present, but all masses except M1 are set to zero. Points to note with this formula: (1) It applies only to lumped mass systems. Thus the structure consists of a heap of lumped masses, interconnected by a tangle of linear springs.

2011年7月11日 · Murphys Law applies: Everything goes wrong at once or cascades during an AC blackout. Not being able to reclose breakers as the springs are not tensioned can be disasterous. Especially in remote controlled unmanned stations where no one is available on site to recharge the springs by hand.

2003年5月29日 · Every valve I've looked at uses a series of springs to push both seats into the ball. This configuration allows a body bleed to be used to evacuate the body cavity (for a double-block-and-bleed that meets many company's hot-work requirements). Without the springs, the downstream side would keep the body pressurized. bmoorthy,

2005年11月11日 · I have a circular 2-d model that I want to place tangential and radial compression only springs. I am having trouble grasping the "gap link" that I believe are what I have to use. Can someone give me alittle insight to the steps I …

2016年6月10日 · Again, original question is regarding calculation of the amount of cable tension force (F) to generate, a given degree of rotation amongst the segments, specifically whether or not the torsion springs could be simplified using the spring-in-series formula, or whether the situation is inherently more complex.

2005年3月2日 · So if you had a 3' x 3' footing - you could use a grid of springs under the footing based on a presumed soil modulus. The springs on the edges would have 1/2 the spring value, the springs on the corners would have 1/4, and the interiors would have full value.

2015年7月21日 · B. We used a multi linear spring to account for the bi-linear behaviour of the springs. C. Yes, we checked up on the axes. We used a 2 Joint Link Spring to assign springs along x and x directions. We need to input a time history load, a ground motion, at the end of this joint spring. Is that possible? It is possible to select the ends of the ...

2003年7月23日 · In many cases, with the combination of flow and head (relatively low flow and high head), 3600 rpm are often proposed by the bidders. For alternative, two 1800 rpm in series can replace an 3600 rpm pump for the same application, or occasionally, a larger 1800 rpm can do the same thing but the operating point is close to the minimum flow (dead ...