液压打桩锤 meaning in Chinese
hydraulic pile-driving hammer
Examples
- 1 . through market investigation and information searching , not only a new type of hydraulic system which is applicable to middle and small type of hydraulic hammer is designed , but also a set of experiment equipment is realized
通过调研和大量检索，设计出适合小型液压打桩锤的新型液压系统，并利用现有条件，研制出新型液压打桩锤的实验装置。 - Based on mathematical model of each stage , simulation and analysis is made . the changing rule of displacement , velocity , acceleration can come to a decision from simulation plot during falling process of pile hammer . research on simulation will be instructive in improving and optimizing design of its parameter
对所研究液压打桩锤的打桩过程进行运动学和动力学分析，提出桩锤在各个打击过程的数学模型，并对各阶段进行仿真及分析，研究桩锤下打过程中，桩锤位移、速度、加速度变化规律，仿真研究对改进和优化打桩锤的各个设计参数具有指导意义。 - Power bond graph is used to established the bond graph model of the lifting and dropping of hydraulic pile hammer and state space equation in the paper for hydraulic pile hammer is perplexing nonlinear system . in order to attain the graph that pressure , position , velocity , acceleration vary with time in the course of driving pile simulation procedure solving state space equation is designed on the basis of combining four - order runge - kutta method with predicator - corrector method , dynamic simulation of the hydraulic system is studied in matlab 6 . 5 . it is convenient to analyse dynamic characteristics of the hydraulic syste m , beneficial to the design and parameter optimization of the hydraulic system . in the final part of the paper , under detailed analysis of the control characteristics for double - acting hydraulic pile hammer with double cylinders , control system based on the programmable logic controllers founded on technology of modern compute is designed
由于液压打桩锤液压系统是一个复杂的非线性系统，本文采用功率键合图法建立液压打桩锤上行、下降的键合图模型和状态空间方程，通过四阶龙格?库塔法和预估?校正法相结合编制了仿真程序对状态空间方程求解，在matlab6 . 5中进行液压系统的动态仿真，获得液压打桩锤运动过程中压力、位移、速度、加速度等随时间变化的曲线图。此曲线图方便了对液压系统动态特性分析，为液压系统的设计和参数优化提供了有益的借鉴。最后，在深入分析双缸双作用液压打桩锤控制系统的功能要求后，采用了以现代计算机技术为基础的新型工业控制装置? plc可编程控制器，设计出了双缸双作用液压打桩锤的电器控制系统。 - So research and development on it were taken in the world , which have an important influence on environment protection , energy saving and technology advancement aimming at the peculiarity and trend of hydraulic hammer , experiment equipment of the new type of it has developed . on the guidance of dynamics theory , by means of technology of dynamical measurement and signal processing and on the basis of experiment data and simulation result , the changing rule of major functional parameter of hydraulic hammer was researched profoundly and systematically . thus dynamical model and computing method whose hydraulic system was applicable to hydraulic hammer of middle and small type was presented
本论文针对液压打桩锤的特点和发展趋势，研制了新型液压打桩锤的实验装置，并以动力学基本理论为指导思想，以动态测试和信号处理技术为手段，以实验数据和仿真结果为依据，对液压打桩锤主要性能参数的变化规律，进行了深入和系统地研究，进而提出了适合小型液压打桩锤的液压系统动力学模型和计算方法，为产品开发提供了科学依据。 - Hydraulic pile hammer is one of the pile driving machines that drive prefabricated piles into the ground in the construction of pile foundation such as construction , bridge , dock , etc . with the development of science and technology , the prefabricated pile driving machines evolve from block hammer , steam - hammer , diesel hammer to hydraulic hammer . hydraulic pile hammer is one of ideal prefabricated pile driving machines because it can adjust stress waveform , decrease stress peak value , prolong effectual action when it drives piles . hydraulic pile hammer is used widely and formed series in developed countries now
液压打桩锤是用于建筑、桥梁、码头等桩基础施工中打入预制桩的桩工机械。随着科学技术的进步，预制桩施工机械由落锤、汽锤、柴油锤，发展到了液压打桩锤。用液压打桩锤打桩，可以调整撞击应力波波形，减小应力峰值，延长有效作用时间，是一种比较理想的预制桩施工机械，目前在发达国家已被广泛使用，并形成了系列化。