Spring
2017-01-20 09:21:12 0 举报AI智能生成
Spring是一个开源的Java平台，它提供了一种简单的方式来开发企业级应用程序。Spring框架的核心是控制反转（IoC）和面向切面编程（AOP），它通过这些技术来实现松耦合、模块化和可测试性的代码。Spring框架还包括了一套丰富的工具和库，如Spring MVC、Spring Boot、Spring Data等，这些工具和库可以帮助开发者更快速地构建出高效、稳定的应用程序。此外，Spring还具有很好的兼容性，可以与许多其他Java技术集成在一起使用。总之，Spring是一个非常强大且灵活的Java开发框架，它能够帮助开发者更好地构建和管理复杂的企业级应用程序。
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The difference between closed and closed ground(磨平) ends?
C=CLOSED
CG=CLOSED & GROUND
O=OPEN
Compression springs: First would be to determine the installed height(L1) and load required(P1) at this height
of the spring, then the load(P2) required at the deflected compressed height(L2). If you are looking for a long life
spring, keep the total deflection of the spring between 20% and 80% of FL. Compression spring O.D. will grow as
the spring is compressed so remember this in your design if space is tight.
F = L1 L2.
P = P2 P1.
Using these two numbers we can determine the spring rate required, so we take P / F = R. Then we can
determine the free length of the spring by using P2 / R + L2 = FL.
One reason: The metal wire
from which springs are formed can have widely varying
mechanical properties between batches, especially tensile
strength. Operators making the springs have no control over rawmaterial
properties so they must compensate for the variations
during manufacturing.
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