The Hitch Post http://hydraulicspneumatics.com/blog/8418/feed en Bulk Modulus for Dummies http://hydraulicspneumatics.com/blog/bulk-modulus-dummies <div class="node-body blog-body"><p>I was in high school when Vincent Magorien wrote what I consider to be the definitive treatise on bulk modulus. That was way back in 1969. But like gravity, bulk modulus is one of those fundamentals that has not and will not change &mdash; except maybe in science fiction.</p></div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/bulk-modulus-dummies" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/bulk-modulus-dummies#comments Hydraulic Fluids The Hitch Post Fri, 21 Aug 2015 19:35:00 +0000 33871 at http://hydraulicspneumatics.com The Sweet Spot for Hydraulic Hybrids http://hydraulicspneumatics.com/blog/sweet-spot-hydraulic-hybrids <div class="node-body blog-body"><p>I met with officials of Lightning Hybrids at the Work Truck Show, held earlier this year in Indianapolis. Lightning Hybrids held a press conference and allowed show attendees to test drive a delivery truck equipped with a hybrid hydraulic drive. It was fun and interesting to drive the vehicle, but a conversation with company officials clarified some points I had pondered about hydraulic hybrids.</p></div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/sweet-spot-hydraulic-hybrids" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/sweet-spot-hydraulic-hybrids#comments Rail, Truck & Bus The Hitch Post Thu, 16 Jul 2015 14:10:00 +0000 33331 at http://hydraulicspneumatics.com Of Airplanes and Hydraulic Oil http://hydraulicspneumatics.com/blog/airplanes-and-hydraulic-oil <div class="node-body blog-body">his is the second month in a row where I feel compelled to pay tribute to someone important to the fluid power industry who has died. Ned Stull retired from Hydraulics & Pneumatics as executive editor in May 1993 and passed away June 8. I had the pleasure and privilege of working with Ned for only six years, but he made huge contributions to our coverage of hydraulics in the aerospace industry for more than 20 years.</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/airplanes-and-hydraulic-oil" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/airplanes-and-hydraulic-oil#comments Hydraulic Fluids News The Hitch Post Thu, 09 Jul 2015 16:13:00 +0000 33201 at http://hydraulicspneumatics.com How to Design Stable Closed-Loop Circuits http://hydraulicspneumatics.com/blog/how-design-stable-closed-loop-circuits <div class="node-body blog-body"><p>Robert Burton was an expert in electrohydraulic servo system design for more than 40 years. He contributed articles to <em>Hydraulics &amp; Pneumatics</em> during the 1990s, and our September 1996 issue contains an in-depth article explaining electrohydraulic closed-loop control without of the complicated math that&#39;s often a part of tutorial material.</p></div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/how-design-stable-closed-loop-circuits" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/how-design-stable-closed-loop-circuits#comments Controls & Instrumentation Cylinders & Actuators Hydraulic Valves The Hitch Post Thu, 02 Jul 2015 01:35:00 +0000 33141 at http://hydraulicspneumatics.com Free Webcast Drives Home Benefits of Proactive Maintenance http://hydraulicspneumatics.com/blog/free-webcast-drives-home-benefits-proactive-maintenance <div class="node-body blog-body"><p><span class="summary" name="summary">Officials at Noria Corp. explain that the cost of a reactive maintenance program can be up to ten times that of a proactive approach. This affects numerous aspects of your business, including downtime, employee morale, attrition to share price and even operational viability.</span></p></div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/free-webcast-drives-home-benefits-proactive-maintenance" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/free-webcast-drives-home-benefits-proactive-maintenance#comments Maintenance The Hitch Post Tue, 09 Jun 2015 14:08:00 +0000 32871 at http://hydraulicspneumatics.com How to Calculate Loop Gain in Electrohydraulic Servo Systems http://hydraulicspneumatics.com/blog/how-calculate-loop-gain-electrohydraulic-servo-systems <div class="node-body blog-body"><p>Hey, don&#39;t look at me; I&#39;m no expert in this field. But Robert Burton certainly was. He authored countless books and technical paper covering closed-loop control of electrohydraulic systems. He also contributed to <strong><em>Hydraulics &amp; Pneumatics</em></strong>. And even though his works wer published about 20 years ago, he insight into the behavior of loads, hydraulic flow and pressure, and electronic control are just as relevant today.</p></div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/how-calculate-loop-gain-electrohydraulic-servo-systems" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/how-calculate-loop-gain-electrohydraulic-servo-systems#comments Controls & Instrumentation The Hitch Post Fri, 29 May 2015 13:31:00 +0000 32721 at http://hydraulicspneumatics.com Hydraulics Becomes Art http://hydraulicspneumatics.com/blog/hydraulics-becomes-art <div class="node-body blog-body"><p>I&#39;ve never been to Rotterdam, Netherlands, and I probably never will. But if, like me, you&#39;re a hydraulics person, the spotlights at Schouwburgplein<b> </b>are a must see in Rotterdam.</p> <p>Never heard of Schouwburgplein?<a href="/community/are-cylinders-becoming-cool-architectural-elements"> Click here</a> to read an editorial I wrote several years ago describing an artsy exhibit that relies on hydraulics.</p> </div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div> http://hydraulicspneumatics.com/blog/hydraulics-becomes-art#comments Community The Hitch Post Thu, 14 May 2015 03:02:00 +0000 32351 at http://hydraulicspneumatics.com Using Water Glycol as Your Hydraulic Fluid? http://hydraulicspneumatics.com/blog/using-water-glycol-your-hydraulic-fluid <div class="node-body blog-body">Using water glycol for a system's hydraulic fluid requires a lot of investigation.</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/using-water-glycol-your-hydraulic-fluid" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/using-water-glycol-your-hydraulic-fluid#comments Hydraulic Fluids The Hitch Post Fri, 24 Apr 2015 15:39:00 +0000 32181 at http://hydraulicspneumatics.com Do You Still Dabble in QBASIC? http://hydraulicspneumatics.com/blog/do-you-still-dabble-qbasic <div class="node-body blog-body">Even though QBASIC is a real antique as far as software goes, it can still useful for creating relatively simple control programs. You can download a copy by clicking here. </div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/do-you-still-dabble-qbasic" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/do-you-still-dabble-qbasic#comments Controls & Instrumentation The Hitch Post Mon, 23 Mar 2015 13:44:00 +0000 31691 at http://hydraulicspneumatics.com Find a Job in Fluid Power http://hydraulicspneumatics.com/blog/find-job-fluid-power <div class="node-body blog-body"><p>Seems like at least nine out of ten people I meet in the fluid power industry stay in the fluid power industry. Time and again, I hear someone has moved on, then I run into him or her again at a trade show, conference, or other fluid power event.</p> <p>So if you&#39;re looking for a new job, chances are, you&#39;ll remain in the fluid power industry. But finding good leads in such a specialized field can be frustrating.</p></div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/find-job-fluid-power" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/find-job-fluid-power#comments Community The Hitch Post Mon, 23 Feb 2015 20:25:00 +0000 31131 at http://hydraulicspneumatics.com Are you (or a kid you know) into Lego? http://hydraulicspneumatics.com/blog/are-you-or-kid-you-know-lego <div class="node-body blog-body"><p>If you&#39;re reading this, you&#39;re probably interested in hydraulics, pneumatics, or both. And, to quote Bill Cosby, you probably &quot;started out as a child.&quot;</p> <p>So assuming you started out life as a child, there&#39;s a good chance you spent much of your childhood playing with <strong><a href="http://www.lego.com/en-us/" target="_blank">Lego</a></strong> building blocks. You may have even built some pretty sophisticated pieces.</p></div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/are-you-or-kid-you-know-lego" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/are-you-or-kid-you-know-lego#comments Learning Resources The Hitch Post Fri, 13 Feb 2015 17:38:00 +0000 30851 at http://hydraulicspneumatics.com A True Steam Shovel http://hydraulicspneumatics.com/blog/true-steam-shovel <div class="node-body blog-body"><p>I&#39;m a member of our local historical society, and I often look through old pics and negatives when I visit. Last night I came a cross this picture of a steal shovel excavating for a junior high school, which was dedicated in 1922. So this image was probably taken in 1921.</p></div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/true-steam-shovel" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/true-steam-shovel#comments Construction The Hitch Post Wed, 21 Jan 2015 23:43:00 +0000 30321 at http://hydraulicspneumatics.com A Look at Hydraulic Hose Failures http://hydraulicspneumatics.com/blog/look-hydraulic-hose-failures <div class="node-body blog-body"><p>We regularly look at what types of articles draw the most visitors on our websites. One of the biggies is maintenance. What&#39;s interesting about maintenance of hydrauli systems is that even though many of the tools and instruments have changed dramatically during my 25+ years on H&amp;P many of the problems and their solutions are still the same.</p></div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/look-hydraulic-hose-failures" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/look-hydraulic-hose-failures#comments Maintenance Hose & Tubing The Hitch Post Sun, 23 Nov 2014 04:40:00 +0000 29841 at http://hydraulicspneumatics.com Tried & True Ways of Dealing with Air in Hydraulic Fluid http://hydraulicspneumatics.com/blog/tried-true-ways-dealing-air-hydraulic-fluid <div class="node-body blog-body">Symptoms typical of an aerated hydraulic system plagued the F-104 aircraft for years. Aeration was caused by system components with built-in chambers and passages where free air (bubbles) collected when system fluid was saturated or at rest with no pressure acting on the fluid.</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/tried-true-ways-dealing-air-hydraulic-fluid" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/tried-true-ways-dealing-air-hydraulic-fluid#comments Aerospace Hydraulic Fluids Hydraulic Pumps & Motors The Hitch Post Thu, 13 Nov 2014 11:24:00 +0000 29531 at http://hydraulicspneumatics.com Hydraulics in the Aftermath of Pearl Harbor http://hydraulicspneumatics.com/blog/hydraulics-aftermath-pearl-harbor <div class="node-body blog-body">Quick action using hydraulics helped right many of the warships damaging in the attack on Pearl Harbor.</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hitch-post">The Hitch Post</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/hydraulics-aftermath-pearl-harbor" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/hydraulics-aftermath-pearl-harbor#comments Marine & Offshore Material Handling Hydraulic Pumps & Motors The Hitch Post Sat, 08 Nov 2014 17:24:00 +0000 29521 at http://hydraulicspneumatics.com